Acipenser transmontanus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of<a href="https://www.bing.com/search?q=north+america&amp;cvid=d55013d210f7439f8ca981b3b73576f2&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j69i59.492j0j4&amp;FORM=ANAB01&amp;PC=HCTS"> North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.White sturgeon (Acipenser transmontanus) is a species of sturgeon in the family Acipenseridae of the order Acipenseriformes. They are an anadromous fish species ranging in the Eastern Pacific; from the Gulf of Alaska to Monterey, California. However, some are landlocked in the Columbia River Drainage, Montana, and Lake Shasta in California, with reported sightings in northern Baja California, Mexico.Actinopterygii (ray-finned fishes) &gt; Acipenseriformes (Sturgeons and paddlefishes) &gt; Acipenseridae (Sturgeons) &gt; Acipenserinae Etymology: : Latin, = sturgeon, 1853 (Ref. 45335); transmontanus: The specific name is derived from the Latin acipenser (sturgeon), trans (beyond), and montanus (mountain) (Ref. 27436).More on author: Richardson.

Acipenser transmontanus

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Acrocephalus luscinia NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=cd15138958b44bb2b853b45f848f47f2&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j0.896j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.The nightingale reed warbler, or Guam reed warbler, was a songbird endemic to Guam. It has not been seen since the 1960.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video. Geographic Information Geographic Division: Oceania : Jurisdiction/Origin: Central Pacific Territories, Native : Comments Comment: US ESA: Listed Endangered, included in the U.S. List of Endangered Foreign Fish and Wildlife, as published in Federal Register Volume 39, Number 3, Pages 1158 - 1185, January 04, 1974. The Nightingale Reed-warbler ( Acrocephalus luscinia) is a critically endangered songbird of the Mariana Islands. The Chamorro name for the bird is ga`ga` karisu (bird of the reeds). The species is approximately 17 cm (7 inches) long, and is greyish olive-brown above with a pale-yellow underside. It inhabits wetlands, thickets and the margins of forests. the female is slightly smaller than the male

Acrocephalus luscinia

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NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Acrocephalus percernis aquilonis

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Acropora cervicornis NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and <a href="https://www.earth.com/news/faking-death-is-a-good-way-for-animals-to-stay-alive/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Acropora cervicornis ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=ac3a31fd59c1443a823a552b0b8ce0fc&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.736j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video. The staghorn coral is a branching, stony coral with cylindrical branches ranging from a few centimetres to over two metres in length and height. It occurs in back reef and fore reef environments from 0 to 30 m depth. The upper limit is defined by wave forces, and the lower limit is controlled by suspended sediments and light availability. Fore reef zones at intermediate depths 5–25 m were formerly dominated by extensive single-species stands of staghorn coral until the mid-1980s. This coral exhibits the fastest growth of all known western Atlantic fringe corals, with branches increasing in length by 10–20 cm per year. This has been one of the three most important Caribbean corals in terms of its contribution to reef growth and fishery habitat.

Acropora cervicornis

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Acropora globiceps NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

FWS Digital Media Library -- The U.S. <a href="https://www.bing.com/search?q=fish&amp;cvid=28c5caf155a040a0b5ba0d7f18616e39&amp;aqs=edge.0.69i59j0l6.615j0j9&amp;FORM=ANAB01&amp;PC=HCTS">Fish</a> and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acropora globiceps is a species of acroporid coral found in the oceanic central and western Pacific Ocean and central Indo-Pacific. It can also be found in the Great Barrier Reef, the Philippines, the Andaman Islands, Polynesia, Micronesia and the Pitcairn Islands. It occurs on the slopes of reefs, the flats of reefs, in tropical shallow reefs, and at depths of around 8 metres. It was described by Dana in 1846.Acropora globiceps is a species of acroporid coral found in the oceanic central and western Pacific Ocean and central Indo-Pacific. It can also be found in the Great Barrier Reef, the Philippines, the Andaman Islands, Polynesia, Micronesia and the Pitcairn Islands. It occurs on the slopes of reefs, the flats of reefs, in tropical shallow reefs, and at depths of around 8 metres (26 ft). It was described by Dana in 1846.

Acropora globiceps

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Acropora jacquelinae NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=345cd6ae545046caa56c2600f83bb918&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.756j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. 1994 Plating Acropora. Likely Reef Tank Suitable. Likely Fish-Only Tank Suitable. Range: Indo-West Pacific Ocean: Bali, Indonesia, and Philippines where it is (Uncommon). Natural Environment: Inhabits protected reef slopes and lagoons and usually seen at depths between 50 to 100 feet (15 - 30 m).

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acropora jacquelineae is a species of acroporid coral found in the eastern Indian Ocean and the central and western Pacific Ocean. It can be found offshore of Indonesia, Malaysia, Papua New Guinea, the Samoan Islands, and the Solomon Islands. It occurs in tropical shallow reefs on reef slopes and flats in subtidal areas, at depths of around between 15 and 35 metres. It was described by Carden Wallace in 1994.

Acropora jacquelinae

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Acropora lokani NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.Acropora lokani is a species of acroporid coral that was first described by C. C. Wallace in 1994. Found in marine, shallow reefs and sheltered lagoons, it occurs at depths between 8 and 25 m. It is listed as vulnerable on the IUCN Red List, and is believed to have a decreasing population. It is not common but found over a large area, including in three regions of Indonedia, and is listed under CITES Appendix II.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acropora lokani is a very common deeper water Acropora that is common in Indonesia and widespread through the Indo-Pacific. The lokani Acro has been farmed by the thousands for many years, decades even, so in that time we thought we’d seen it all. It usually grows from 15 m (45ft) deep all the way down to over 50 m (150 ft).

Acropora lokani

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Acropora palmata NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=8503ba2cbf444d8f94147e57b381cb51&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.850j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Elkhorn coral (Acropora palmata) is an important reef-building coral in the Caribbean. The species has a complex structure with many branches which resemble that of elk antlers; hence, the common name. The branching structure creates habitat and shelter for many other reef species. Elkhorn coral is known to grow quickly with an average growth rate of 5 to 10 cm (2.0 to 3.9 in) per year. They can reproduce both sexually and asexually, though asexual reproduction is much more common and occurs through a process called fragmentation. Although Elkhorn coral dominated the Caribbean in the early 1980s, the species has since dramatically declined in numbers. Scientists have estimated that between 1980 and 2006, when it was listed in the Endangered Species Act (ESA), the population declined by around 97%. This decline was due to a variety of factors, including disease, algae growth, climate change, ocean acidification, and human activity. In May 2006, Elkhorn coral was officially listed as threatened in the ESA along with another species in the Acropora genus, Staghorn coral. Some conservation efforts are now in place to protect the species and promote increased genetic variability among the species.

Acropora palmata

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Acropora pharaonis NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=d07acee5239d479da9f7b1835bcd4633&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.785j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acropora pharaonis is a species of acroporid coral that was first described by Milne-Edwards and Haime in 1860. Found in marine, tropical, reefs on slopes sheltered from wave action, it occurs at depths of between 5 and 25 m. It is classed as a vulnerable species on the IUCN Red List, and it has a decreasing population. It is common and found over a large area and is classified under CITES Appendix II. Acropora is a genus of small polyp stony coral in the phylum Cnidaria. Some of its species are known as table coral, elkhorn coral, and staghorn coral. Over 149 species are described. Acropora species are some of the major reef corals responsible for building the immense calcium carbonate substructure that supports the thin living skin of a reef.

Acropora pharaonis

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Acropora retusa NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and <a href="https://www.earth.com/news/faking-death-is-a-good-way-for-animals-to-stay-alive/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acropora retusa is a species of coral found in U.S. waters in Guam, American Samoa, and the Pacific Remote Island Areas. Colonies of Acropora retusa are made up of flat plates with short, thick finger-like branches. Branches look rough and spiky because radial corallites are variable in length. Colonies are typically brown or green in color.

Colonies are flat plates with short thick digitate branchlets. Corallites have thick rounded walls and wide openings. Axial corallites are indistinct. Radial corallites are appressed, becoming nariform near branch ends.Acropora retusa Dana, 1846 Infos from AIMS: Characters: Colonies are flat plates with short thick digitate branchlets. Corallites have thick rounded walls and wide openings. Axial corallites are indistinct. Radial corallites are appressed, becoming nariform near branch ends.

Acropora retusa

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Acropora rudis NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/mistastin-lake-in-labrador-canada/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Acropora rudis ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=84f1e8e9658b4caea7e69e7c7dff2555&amp;aqs=edge.0.69i59j69i57j69i59j0j69i60l3.1774j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be described as the northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Tectonic Plate, Greenland is included as part of North America geographically. North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Acropora rudis

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Acropora speciosa NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/lake-st-clair-of-the-u-s-and-canada/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

FWS Digital Media Library -- The U.S.<a href="https://www.bing.com/search?q=fish&amp;cvid=28c5caf155a040a0b5ba0d7f18616e39&amp;aqs=edge.0.69i59j0l6.615j0j9&amp;FORM=ANAB01&amp;PC=HCTS"> Fish</a> and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acropora speciosa is a species of acroporid coral found in the Red Sea, the Gulf of Aden, the southwest and northern Indian Ocean, the central Indo-Pacific, Southeast Asia, Japan, the East China Sea, eastern Australia and the oceanic west and central Pacific Ocean. It occurs in shallow reefs at depths of 2 to 25 metres.Acropora speciosa is hands-down one of the most exquisite species of all Acropora. This deepwater style stony coral comes to us mostly as farmed specimens from Bali Aquarium and its potential as an aquarium coral has not yet been well established.Genus: Acropora. Color: Pink, Yellow. Feeding: Photosynthetic. Flow: High. Lighting: High. Photo Courtesy of: N/A. A very finicky coral, experts only.

Acropora speciosa

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Acropora tenella NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/lake-st-clair-of-the-u-s-and-canada/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=b465a6a06aa04b25a2b750c94d1fc9be&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j0.591j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acropora tenella is a species of acroporid coral found in the central Indo-Pacific, southeast Asia, Japan, the East China Sea and the oceanic western Pacific Ocean. It occurs on lower slopes of reefs at depths of 25 to 70 metres.Acropora tenella is a species of coral likely found in in the Coral Triangle area (the Philippines to Timor Leste and east to the Solomon Islands). There are also confirmed records of this species in southern Japan, Micronesia, and the Marshall Islands.is one of the lesser known ‘deep water’ or ‘naked’ style Acros, and it can be quite beautiful and colorful too. However a recent observation of this species in the coral obliterates the maximum known depth for this genus in the Coral Sea. A lush colony of Acropora tenella growing at 30 meters or around 100 feet deep.

Acropora tenella

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Addax nasomaculatus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Addax nasomaculatus ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=530cb60b34904394a0364cf9e97deb56&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.660j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.The addax (Addax nasomaculatus), also known as the white antelope and the screwhorn antelope, is an antelope native to the Sahara Desert. The only member of the genus Addax, it was first described scientifically by Henri de Blainville in 1816. As suggested by its alternative name, this pale antelope has long, twisted horns - typically 55 to 80 cm (22 to 31 in) in females and 70 to 85 cm (28 to 33 in) in males. Males stand from 105 to 115 cm (41 to 45 in) at the shoulder, with females at 95 to 110 cm (37 to 43 in). They are sexually dimorphic, as the females are smaller than the males. The colour of the coat depends on the season - in the winter, it is greyish-brown with white hindquarters and legs, and long,

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Addax nasomaculatus

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Adelocosa anops NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The Kauaʻi cave wolf spider (Adelocosa anops, the only species in the genus Adelocosa), also known to local residents as the "blind spider", is only known to occur in a few caves in a lava flow with an area of 10.5 km (4.1 sq mi) in the Kōloa–Poʻipū region of Kauaʻi, Hawaiian Islands, and only six populations are known to exist. While their nearest surface-dwelling relatives have large eyes, this species has completely lost its eyes. They reach a body length around 20 mm (0.8 in), and are reddish brown and completely harmless

Adelocosa anops

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Aepyceros melampus petersi NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Aepyceros melampus petersi ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=ac3a31fd59c1443a823a552b0b8ce0fc&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.736j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The impala is a medium-sized antelope found in eastern and southern Africa. The sole member of the genus Aepyceros, it was first described to European audiences by German zoologist Hinrich Lichtenstein in 1812. Two subspecies are recognised—the common impala, and the larger and darker black-faced impala. The impala reaches 70–92 centimetres (28–36 inches) at the shoulder and weighs 40–76 kg (88–168 lb).

It features a glossy, reddish brown coat. The male's slender, lyre-shaped horns are 45–92 centimetres (18–36 inches) long. Active mainly during the day, the impala may be gregarious or territorial depending upon the climate and geography. Three distinct social groups can be observed: the territorial males, bachelor herds and female herds. The impala is known for two characteristic leaps that constitute an anti-predator strategy. Browsers as well as grazers, impala feed on monocots, dicots, forbs, fruits and acacia pods (whenever available).

Aepyceros melampus petersi

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Aerodramus vanikorensis bartschi NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=016b386b05cb474f8eb67197eafef84b&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j0.640j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.The Aerodramus vanikorensis bartschi (Mariana gray swiftlet) has a long, narrow body with sooty black upper parts and a slightly paler rump. The underparts are dark gray but with a brownish tinge. Some white is present at the base of the feathers in the loreal region. The tarsi are naked and the irises are dark hazel. This species does not display sexual dimorphism in coloration. The taxonomy of this group of swiftlets is in much debate. Virtually all current authorities recognize bartschi as either a subspecie

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Aerodramus vanikorensis bartschi

Aerodramus vanikorensis bartschi NatureServe Explorer Species Reports -- NatureServe Explorer...

Agelaius xanthomus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/lake-st-clair-of-the-u-s-and-canada/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=ac3a31fd59c1443a823a552b0b8ce0fc&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.736j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. The Yellow-shouldered Blackbird (Agelaius xanthomus), also known as La Mariquita de Puerto Rico or Capitán, is a diurnal blackbird endemic to the archipelago of Puerto Rico and one of the species belonging to the Agelaius genus of the Icteridae family.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The yellow-shouldered blackbird, also known as la Mariquita de Puerto Rico or capitán, is a diurnal blackbird endemic to the archipelago of Puerto Rico and belongs to the genus Agelaius of the family Icteridae. It has black plumage with a prominent yellow shoulder on its wing. Adult males and females are of similar appearance. The species is predominantly insectivorous.

Agelaius xanthomus

Agelaius xanthomus NatureServe Explorer Species Reports -- NatureServe Explorer is...

Agelastes meleagrides NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.The white-breasted guineafowl is a medium-sized, up to 45 cm long, terrestrial bird of the guineafowl family.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The white-breasted guineafowl (Agelastes meleagrides) is a medium-sized, up to 45 cm long, terrestrial bird of the guineafowl family. It has a black plumage with a small, bare, red head, white breast, long, black tail, greenish-brown bill, and greyish feet. The sexes are similar, although the female is slightly smaller than the male.White-breasted Guineafowl [English] Geographic Information Geographic Division: Africa : Jurisdiction/Origin: Comments Comment: Listed as Threatened under U.S. Endangered Species Act, and as Vulnerable on IUCN Red List …

Agelastes meleagrides

Agelastes meleagrides NatureServe Explorer Species Reports -- NatureServe Explorer is...

Cloud,Dust,Of,Tree

Spring is a time for blossoms and hay we often associate pollen with allergic reactions -- a cause of sniffles and sneezes. But who would've guessed that tiny pollen spores wield such power over clouds and the overall weather?



It turns out pollen plays a vital role in facilitating the freezing of water in clouds, inciting more precipitation and cloud ice.



<h2 class="wp-block-heading" id="h-pollen-more-than-meets-the-eye">Pollen: More than meets the eye</h2>



Dr. Jan Kretzschmar, meteorologist and lead author of the study from Leipzig University, alongside co-author Professor Johannes Quaas, Professor of Theoretical Meteorology at Leipzig, decided to take a <a href="https://www.earth.com/news/pollen-can-actually-change-the-weather/" target="_blank" rel="noreferrer noopener">closer look</a> at how pollen impacts the weather.



Apparently, pollen enhances ice formation in clouds, even at temperatures between minus 15 and minus 25 degrees Celsius (5°F to -13°F). 



Without these ice-nucleating particles (INPs), water in clouds only freezes at temperatures below minus 38 degrees Celsius (-36°F).



“This is supported by laboratory results showing that pollen acts as an ice nucleus, influencing the freezing temperature of water in clouds and promoting precipitation,” says Dr. Kretzschmar.



<h2 class="wp-block-heading" id="h-pollen-clouds-and-weather-patterns">Pollen, clouds and weather patterns</h2>



Globally, pollen's effect on ice formation might not seem substantial compared to other substances like dust. However, on a regional and seasonal level, pollen's power <a href="https://www.earth.com/news/crops-worldwide-are-insufficiently-pollinated/" target="_blank" rel="noreferrer noopener">becomes evident</a>. 



We usually experience the pollen onslaught in the spring. Not only do these particles trigger our allergies, but they also rise into the atmosphere, entering cold air layers and stimulating ice formation.



Our tiny hero, pollen, doesn't stay up there for long. Its size restricts it to a short atmospheric tenure. But here's the plot twist: when pollen comes in contact with humid conditions, it ruptures into smaller fragments.&nbsp;



These minute particles stick around longer in the air and in large quantities, can penetrate cold atmospheric layers, triggering ice formation.



<h2 class="wp-block-heading" id="h-pollen-s-influence-on-clouds">Pollen's influence on clouds</h2>



Understanding how pollen impacts weather requires delving into its unique properties and interaction with <a href="https://www.earth.com/news/climate-records-shatter-2024-set-to-be-hottest-year-ever/" target="_blank" rel="noreferrer noopener">atmospheric conditions</a>.&nbsp;



Pollen grains possess a rough surface and can absorb moisture, making them remarkably effective as ice-nucleating particles, particularly in certain environmental conditions. 



This quality is essential in the phase transition of water from liquid to solid, as the presence of such particles lowers the energy barrier for freezing. 



Through this process, pollen effectively accelerates the formation of ice crystals within clouds, an initiation crucial for precipitation development.&nbsp;



Consequently, pollen's interaction with existing cloud constituents helps propagate more extensive <a href="https://www.earth.com/news/how-changing-rainfall-patterns-impact-plants-worldwide/" target="_blank" rel="noreferrer noopener">precipitation patterns</a>, making it a pivotal factor in local meteorology during peak pollen periods.



<h2 class="wp-block-heading" id="h-implications-for-climate-models-nbsp">Implications for climate models&nbsp;</h2>



The revelation that pollen contributes significantly to cloud microphysics presents challenges and opportunities for <a href="https://www.earth.com/news/rainfall-is-increasingly-unpredictable-due-to-climate-change/" target="_blank" rel="noreferrer noopener">atmospheric science</a>. 



Current climate models predominantly factor in major ice-nucleating agents like dust or soot, often overlooking the transient yet potent influence of pollen. 



Integrating pollen dynamics into these models can enhance predictive accuracy, especially in regions with prolific plant life. 



Future research is expected to focus on quantifying pollen's variability in different ecosystems, investigating its contribution to cloud dynamics, and exploring how changes in vegetation and <a href="https://www.earth.com/news/2024-is-expected-to-exceed-the-1-5c-warming-limit/" target="_blank" rel="noreferrer noopener">climate</a> might alter its role.&nbsp;



By refining our understanding of pollen's multifaceted impact on the atmosphere, scientists can develop more comprehensive climate models that better capture the intricate interplay between terrestrial biosystems and <a href="https://www.earth.com/news/extreme-rainfall-gets-an-unpredictable-boost-from-air-pollution/" target="_blank" rel="noreferrer noopener">atmospheric processes</a>.



<h2 class="wp-block-heading" id="h-pollen-s-role-in-a-changing-weather">Pollen's role in a changing weather</h2>



Now, let's take a dip into the pool of climate change. With the onset of the pollen season shifting, extending, and the volumes of pollen in the air increasing, we might be looking at heightened <a href="https://www.earth.com/news/cities-experience-more-rainfall-than-surrounding-areas/" target="_blank" rel="noreferrer noopener">local precipitation</a>.



Biodiversity is another piece of the puzzle. In spring, numerous plant species let loose volumes of pollen simultaneously. This natural event impacts cloud formation and the amount of ice particles in the atmosphere.&nbsp;



How vast is this impact? That's what scientists are keen to figure out. Understanding pollen's role could help generate more accurate climate models.&nbsp;



If we can correctly simulate the effect of pollen and how it interacts with the climate, we will be able to make more accurate predictions.



<h2 class="wp-block-heading" id="h-pollen-an-important-factor-in-cloud-formation-nbsp">Pollen, an important factor in cloud formation&nbsp;</h2>



So, can we consider pollen as an unsuspecting player in our planet's weather system? Perhaps. The upcoming research results are eagerly awaited. 



You might have started reading this article thinking pollen was just a trivial plant byproduct. But now, doesn't it feel like there is more to the story?



Remember, every time you sneeze this spring season, there's more going on than just a minor allergy. You might just be witnessing a phenomenon that could change our understanding of the weather.



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This research was carried out by researchers from <a href="https://www.uni-leipzig.de" target="_blank" rel="noreferrer noopener">Leipzig University</a>, the Leibniz Institute for Tropospheric Research (<a href="https://www.tropos.de/en/" target="_blank" rel="noreferrer noopener">TROPOS</a>), the German Centre for Integrative Biodiversity Research (<a href="https://www.idiv.de/en/index.html" target="_blank" rel="noreferrer noopener">iDiv</a>) Halle-Jena-Leipzig and the <a href="https://www.bgc-jena.mpg.de/en" target="_blank" rel="noreferrer noopener">Max Planck Institute for Biogeochemistry</a>. It's astounding what everyday things can teach us.



The study is published in the journal&nbsp;<a href="https://iopscience.iop.org/article/10.1088/1748-9326/ad747a" target="_blank" rel="noreferrer noopener">Environmental Research Letters</a>.&nbsp;



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Pollen alters cloud formation and changes weather patterns

Spring is a time for blossoms and hay we often...

Psilocybin, the psychedelic compound found in "magic mushrooms," is rapidly capturing the attention of healthcare experts and policymakers as a potential treatment for chronic depression.



As the U.S. Food and Drug Administration (FDA) considers approving psilocybin for depression treatment in the near future, we are inching closer to what could be a transformative milestone in modern medicine.



<h2 class="wp-block-heading" id="h-who-would-benefit-from-psilocybin-therapy">Who would benefit from psilocybin therapy?</h2>



The possibility of legalizing psilocybin therapy brings a compelling question to the forefront: how many individuals could truly benefit?



A peer-reviewed study led by researchers at <a href="https://www.emory.edu/home/index.html" target="_blank" rel="noreferrer noopener">Emory University</a>, the <a href="https://www.wisc.edu/" target="_blank" rel="noreferrer noopener">University of Wisconsin-Madison</a>, and <a href="https://www.berkeley.edu/" target="_blank" rel="noreferrer noopener">UC Berkeley</a>, offers unprecedented insight.



The findings suggest that psilocybin-assisted therapy for <a href="https://www.earth.com/news/people-with-a-history-of-depression-tend-to-process-more-negative-information/" target="_blank" rel="noreferrer noopener">depression</a> could have a substantial impact in the United States.



The study estimates that between 56 and 62 percent of patients currently receiving treatment for depression - about 5.1 to 5.6 million individuals - could qualify for this therapy.



<h2 class="wp-block-heading" id="h-the-potential-of-psilocybin-therapy">The potential of psilocybin therapy</h2>



“Our findings suggest that if the FDA gives the green light, psilocybin-assisted therapy has the potential to help millions of Americans who suffer from depression,” said Syed Fayzan Rab, an Emory MD candidate and lead author of the study.



The researchers analyzed national data, revealing that nearly 15 million adults in the U.S. are affected by depression, with about 9 million currently receiving treatment each year.



Using recent clinical trial criteria, the experts assessed this population to determine eligibility for psilocybin therapy.



<h2 class="wp-block-heading" id="h-eligibility-for-psilocybin-treatment">Eligibility for psilocybin treatment </h2>



The findings present a range of possibilities. A conservative estimate indicates that 24% of patients will be eligible if strict trial criteria is applied, while a more moderate scenario estimates that 56% of patients will be eligible under real-world medical conditions.



At the higher end, 62% of patients could qualify for psilocybin treatment, factoring in additional considerations such as <a href="https://www.earth.com/news/korean-red-ginseng-may-alleviate-alcohol-addiction-study-reveals/" target="_blank" rel="noreferrer noopener">alcohol</a> and <a href="https://www.earth.com/news/child-maltreatment-triples-the-risk-of-substance-use/" target="_blank" rel="noreferrer noopener">substance use</a> disorders.



Notably, the inclusion of these co-occurring conditions, which evidence suggests psilocybin may treat effectively, accounted for nearly a third of the increased eligibility. 



Even so, the 62% figure might still be an understatement, as it only includes individuals who are already receiving treatment and does not consider the potential influx of new patients.



<h2 class="wp-block-heading" id="h-challenges-in-real-world-implementation">Challenges in real-world implementation</h2>



While the potential impact of psilocybin therapy is promising, the researchers caution that several real-world factors could limit its widespread adoption. 



“While our analysis is a crucial first step, we've only scratched the surface in understanding the true public health impact psilocybin therapy may have,” said study co-author Dr. Charles Raison.



Insurance coverage, regional access to care, and availability of trained practitioners could significantly affect its uptake.



Moreover, if the FDA approval includes off-label use for conditions beyond depression, the demand for psilocybin therapy could surge unpredictably.



As the psychedelic renaissance continues to gain momentum, further research will be critical in refining our understanding and ensuring equitable access to this potentially transformative treatment.



<h2 class="wp-block-heading" id="h-the-science-behind-the-therapy">The science behind the therapy</h2>



Psilocybin, the naturally occurring compound found in certain species of <a href="https://www.earth.com/news/how-psilocybin-mushrooms-got-their-magic/" target="_blank" rel="noreferrer noopener">mushrooms</a>, has long fascinated scientists for its profound effects on the human brain. 



When ingested, psilocybin is converted into psilocin and interacts with serotonin receptors - particularly the 5-HT2A receptor, which is known to play a role in mood regulation. This unique interaction is believed to produce the intense sensory and emotional experiences that are characteristic of psychedelic trips.



Recent research has suggested that psilocybin could offer more than just temporary changes in perception. 



Scientific evidence indicates that psilocybin might facilitate deeper, long-lasting shifts in the brain’s neural connectivity, potentially "rewiring" pathways associated with depression, <a href="https://www.earth.com/news/lsd-can-treat-crippling-anxiety-with-a-single-dose/" target="_blank" rel="noreferrer noopener">anxiety</a>, and addiction.



<h2 class="wp-block-heading" id="h-the-future-of-psilocybin-treatment">The future of psilocybin treatment </h2>



According to previous research, a single guided session with psilocybin can lead to significant reductions in depressive symptoms, with some patients reporting relief lasting several months.



However, while the therapeutic potential is exciting, psilocybin therapy requires careful supervision in controlled settings, ensuring that patients receive proper guidance before, during, and after treatment. 



The success of psilocybin-assisted therapy hinges not just on the chemical effects but also on the therapeutic environment, often referred to as the "set and setting," which significantly influences the patient's experience and outcomes.



As research into psychedelics continues to evolve, psilocybin remains at the forefront, holding promise as a potentially transformative treatment for a range of mental health disorders. Yet, questions about the scalability, accessibility, and long-term effects of such therapies remain. 



-----



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Psilocybin mushrooms could help millions who suffer from depression

Psilocybin, the psychedelic compound found in "magic mushrooms," is rapidly...

Stem cells in humans and animals have garnered significant attention for their ability to repair and regenerate damaged tissues. 



From treating degenerative diseases to enabling advanced therapies, these cells have revolutionized medical research. However, stem cells are not exclusive to the animal kingdom.



<h2 class="wp-block-heading" id="h-plant-stem-cells">Plant stem cells</h2>



Plants, too, possess their own remarkable stem cells, quietly driving growth and regeneration beneath their roots and shoots. 



While plant stem cells have not received the same spotlight, they hold immense potential for advancing agriculture and food sustainability.



According to Huanzhong Wang, professor of plant molecular biology at the <a href="https://cahnr.uconn.edu/" target="_blank" rel="noreferrer noopener">College of Agriculture, Health, and Natural Resources</a> (CAHNR), plant stem cells have significant potential to support human development - especially through enhancing food supply resilience.



“It’s not just humans and animals,” said Professor Wang. “Plants have stem cells too, and we should be paying attention to them.”



<h2 class="wp-block-heading" id="h-stem-cells-and-plant-development">Stem cells and plant development </h2>



<a href="https://www.earth.com/news/scientists-capture-plant-communication-on-video/" target="_blank" rel="noreferrer noopener">Plants</a> owe their growth and longevity to a variety of stem cells that govern cell division and differentiation. These cells, embedded deep within the <a href="https://www.earth.com/news/autophagy-what-makes-plant-roots-grow-faster-stronger/" target="_blank" rel="noreferrer noopener">roots</a>, shoots, and the vascular system of plants, are critical to the plant's ability to develop.



Professor Wang noted that this intricate network of stem cells ensures that plants can grow both upwards and downwards, forming thicker stems or trunks when necessary.



“Plants can grow for many, many years because different types of stem cells basically ensure they can grow up in the air and deep into the ground,” said Wang. “To grow a thicker stem or trunk, they need another type of stem cell.”



<h2 class="wp-block-heading" id="h-critical-role-of-the-hva-gene">Critical role of the HVA gene</h2>



While plant stem cells haven’t attracted as much attention as their biomedical counterparts, they hold incredible potential for bolstering our <a href="https://www.earth.com/news/record-breaking-heat-is-threatening-wheat-and-the-global-food-supply/" target="_blank" rel="noreferrer noopener">food supply</a>. 



Professor Wang's research highlights how understanding these cells can lead to stronger, more resilient crops. His lab recently published a study in New Phytologist that describes the role of a transcription factor gene called HVA.



The HVA gene controls cell division in vascular stem cells, which are responsible for producing the vascular bundles that transport water and nutrients throughout the plant.



Overexpressing this gene dramatically increases the number of vascular bundles, boosting the plant's structural resilience.



<h2 class="wp-block-heading" id="h-enhancing-agricultural-resilience">Enhancing agricultural resilience</h2>



“In plants without HVA gene overexpression, we observed around five to eight vascular bundles,” said Professor Wang. “In contrast, plants with one copy of the overexpressed gene had over 20, and those with two copies had more than 50 bundles.”



The implications for agriculture are clear. Taller, slender crops like corn could benefit from enhanced wind resistance with the aid of additional vascular bundles.



“When plants grow taller, there is a risk that they could topple over,” said Wang. “Having more vascular bundles ensures the plant can stand still and resist those conditions.”



<h2 class="wp-block-heading" id="h-expanding-research-beyond-mustard-plants">Expanding research beyond mustard plants</h2>



Though the research was conducted using a mustard family model organism, the HVA gene is present in various <a href="https://www.earth.com/news/thousands-of-plant-species-remain-unphotographed/" target="_blank" rel="noreferrer noopener">plant species</a>, suggesting broad applicability. 



Wang’s team plans to investigate other transcription factors in the same gene family to further unravel the mysteries of plant vascular development.



“We are interested in studying other closely related genes to find out their function,” noted Wang. “It will be interesting to study further how this gene family affects vascular development.”



<h2 class="wp-block-heading" id="h-plant-stem-cells-and-sustainable-agriculture">Plant stem cells and sustainable agriculture</h2>



As the global population continues to rise, the demand for sustainable and resilient food sources becomes increasingly urgent. 



Plant stem cells, with their unique ability to drive growth and regeneration, could play a pivotal role in this effort. 



By harnessing the regenerative power of these cells, scientists can develop crops that not only grow faster but also exhibit greater resilience to environmental stressors like drought, pests, and <a href="https://www.earth.com/news/study-reveals-how-plants-adapt-to-changing-climates/" target="_blank" rel="noreferrer noopener">changing climate</a> conditions.



Research into plant stem cells also opens up the possibility of reducing reliance on chemical fertilizers and pesticides. 



With more robust crops, farmers could see increased yields while minimizing environmental damage. This aligns with the broader movement toward sustainable farming and reducing the carbon footprint of agriculture.



The study is published in the journal <a href="https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.19970" target="_blank" rel="noreferrer noopener">New Phytologist</a>.



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How plant stem cells could support human growth

Stem cells in humans and animals have garnered significant attention...

Pile,Of,Freshly,Cut,Wood,Logs,And,Empty,Field,With

Forests are the Earth's lungs, forever sucking up carbon dioxide and throwing out fresh oxygen. But that's only half the story.



Here's the twist -- forests also exhale CO2. In short, they inhale carbon dioxide for growth, but they also exhale it back out, usually in smaller amounts. A bit of an unexpected plot twist.



Now, the University of Leicester's new study has a cheeky bit more to add to this story. 



Tree stems in tropical forests that are bouncing back from logging are found to produce carbon dioxide at a greater rate than those in untouched forests.



So, bouncing back from logging, and yet they're sending out more carbon dioxide?



<h2 class="wp-block-heading" id="h-trees-and-carbon-dioxide">Trees and carbon dioxide</h2>



When we talk about fewer surrounding trees to compete with, the tree stems in logged forests are seen to have a growth spurt and take in carbon dioxide at a <a href="https://www.earth.com/news/organic-farming-practices-boost-soil-carbon-storage/" target="_blank" rel="noreferrer noopener">faster rate</a> than stems in untouched forests. 



However, this rapid growth also comes with a side effect -- a faster release of carbon dioxide. So, chopped down, left with fewer competitors, and now, they're growing at a quick pace and just as quickly giving out carbon dioxide.



This research was led by Maria Mills, a PhD student from the University of Leicester's School of Geography, Geology and the Environment (<a href="https://le.ac.uk/gge" target="_blank" rel="noreferrer noopener">GGE</a>). 



Their conclusion calls for a spotlight to be thrown on logged landscapes that are currently understudied despite being more prominent than old-growth forests across the tropics.



<h2 class="wp-block-heading" id="h-heart-of-a-forest-s-carbon-cycle">Heart of a forest's carbon cycle</h2>



What is 'carbon flux'? Think of it as the forest's way of balancing its books. It measures the net carbon balance. 



But this doesn't tell us much about where the fluctuations are coming from -- it's like knowing your bank balance without any information on the transactions.



If we don't know where the fluctuations are coming from, we also don't know why we're getting certain fluxes and what's driving those fluxes.



The researchers gathered data from <a href="https://www.earth.com/news/forests-are-still-fighting-climate-change-against-all-odds/" target="_blank" rel="noreferrer noopener">forests</a> in Malaysian Borneo as part of a long-term ecological monitoring program. 



By measuring the individual components of the forest carbon cycle and carbon fluxes, they were able to observe certain patterns and fluxes. 



Understanding these is crucial for predicting future climate change and land use change scenarios.



<h2 class="wp-block-heading" id="h-studying-carbon-dioxide-in-forests">Studying carbon dioxide in forests</h2>



Did you know that most of a forest’s biomass is stored in the stems or woody trunk of <a href="https://www.earth.com/news/planting-trees-is-important-but-reforestation-can-help-too/" target="_blank" rel="noreferrer noopener">trees</a>? Well, these scientists did, and they used this information to their advantage. 



The team studied stem respiration of a tree sample, and then extrapolated the values for all the trees in the one-hectare study plots.



Shockingly, tree-level results showed higher carbon release levels per unit of stem surface area in logged versus old-growth plots. 



Specifically, 37 grams of carbon per meter squared of woody stem every month in a logged plot versus only 26 grams in an old-growth plot.



Also, it is important to note that when scaled across the entire one-hectare plots, there was no difference between logged and old-growth results.



<h2 class="wp-block-heading" id="h-uncharted-territory-of-carbon-dynamics">Uncharted territory of carbon dynamics</h2>



This study was about considering individual trees versus the whole ecosystem, and what drives carbon emissions at both levels. 



"There are differences between individual trees, and between individual ecosystems, for example logged versus unlogged forests," Mills explained.



“We see higher respiration per square meter in logged plots because the trees in those plots are growing faster. Growth has a metabolic cost, so we get respiration following growth." 



The trees in logged plots grow faster because they have access to more light -- as there are more gaps in logged plots from when timber trees have been extracted.



<h2 class="wp-block-heading" id="h-forests-logging-and-carbon-emissions">Forests, logging, and carbon emissions</h2>



There are other reasons for these differences which link back to the trees’ functional traits and soil nutrients, but ultimately it comes down to the priority for trees in logged <a href="https://www.earth.com/news/droughts-and-fires-diminish-forests-carbon-storage-ability/" target="_blank" rel="noreferrer noopener">forests</a> to invest in growth. 



In old-growth plots, alternatively, there is a lot more investment and priority for tree maintenance.



"Given how expansive logged forests are, they could be considered as the ‘new normal’ for contemporary tropical forests.  We need to put more research efforts into understanding what goes on in logged forests, both in terms of their carbon fluxes and their wider ecological functioning," Mills concluded.



To sum it all up, Mills and her team uncovered very important information on how climate change is impacted by forest carbon dynamics. 



Let's remember, understanding how forests drive environmental conditions is not just about satisfying our curiosity, it's also crucial in our fight against climate change. 



The study is published in the journal <a href="https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.20043" target="_blank" rel="noreferrer noopener">New Phytologist</a>.



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Trees in forests recovering from logging release much more carbon dioxide

Forests are the Earth's lungs, forever sucking up carbon dioxide...

What lies at the bottom of the ocean? For many, it’s a dark and mysterious place, full of creatures we know little about. But sometimes, discoveries shed light on these mysteries. A new study has done just that, focusing on an unusual deep ocean dweller who likes to eat Sargassum.



Bathyopsurus nybelini, an isopod living nearly 3.7 miles (6,100 meters) deep beneath the ocean's surface, has a very unique diet: it feeds on Sargassum algae that sinks down from the ocean’s surface.



The study, led by Johanna Weston, a hadal ecologist at Woods Hole Oceanographic Institution (<a href="https://www.whoi.edu/" target="_blank" rel="noreferrer noopener">WHOI</a>), reveals just how connected the surface of our oceans is to the deep sea. 



Let's find out what makes this discovery so fascinating and important.



<h2 class="wp-block-heading" id="h-sargassum-in-the-deep-ocean">Sargassum in the deep ocean</h2>



In the summer of 2022, a group of researchers set out on an <a href="https://www.earth.com/news/five-new-hydrothermal-vents-discovered-in-the-pacific-ocean/" target="_blank" rel="noreferrer noopener">adventure with Alvin</a>, a human-occupied submersible, to explore the Puerto Rico Trench and the Mid-Cayman Spreading Center in the Caribbean Sea. 



Thanks to Alvin's recent upgrades, including better deep-diving abilities and high-res image capturing, this journey became a reality.



While exploring the ocean depths, the team observed something unexpected: an isopod swimming upside down and away from the seafloor, clutching a frond of Sargassum algae as long as its own body. 



<a href="https://www.earth.com/news/new-deep-sea-worm-discovered-off-costa-rica/" target="_blank" rel="noreferrer noopener">At these depths</a> -- between 5,001 and 6,284 meters -- Alvin filmed 32 individual isopods and collected two samples for further study. 



According to Weston, “It was exciting to see this beautiful animal actively interacting with Sargassum, deep in the ocean. This isopod is so rarely seen; only a handful of specimens were collected during the groundbreaking 1948 Deep Sea Swedish Expedition.”



<h2 class="wp-block-heading" id="h-unexpected-food-source">Unexpected food source</h2>



Sargassum is a type of brown algae typically found floating on the ocean's surface, forming dense mats that stretch for miles. In the sunlit zone, it thrives, photosynthesizing like any other plant. 



However, when Sargassum dies or detaches from its floating mats, it begins a slow, downward journey into the dark abyss.



That’s where Bathyopsurus nybelini comes in. This deep-sea isopod seems to wait patiently, adapted to find and feast on this sunken source of nutrients. 



“This isopod illustrates that an animal in a dark and high-pressure environment at the bottom of the seafloor has evolved multiple adaptations to feed on algae that grow in a sunlit ecosystem," explains Mackenzie Gerringer, a deep-ocean physiologist at <a href="https://www.geneseo.edu/" target="_blank" rel="noreferrer noopener">SUNY Geneseo</a> and co-lead author of the study.



It’s an unlikely meal, but one that provides essential nourishment.



<h2 class="wp-block-heading" id="h-isopods-and-deep-ocean-sargassum">Isopods and deep ocean Sargassum</h2>



Why is this discovery such a big deal? For one, Bathyopsurus nybelini has developed unique adaptations to survive in an environment where most creatures would struggle to find food. 



It uses a specialized swimming stroke, moving upside down and backward with large paddle-like legs, to carry Sargassum fronds off the seafloor. This might be a clever strategy to avoid predators by lifting its food into the water column.



But the adaptations don’t stop there. This <a href="https://www.earth.com/news/new-deep-sea-crustacean-species-discovered-in-the-bahamas/" target="_blank" rel="noreferrer noopener">isopod has mouthparts</a> that are serrated and ideal for tearing and consuming the tough, fibrous Sargassum. 



Inside its gut, it harbors bacteria that help break down the algae’s complex polysaccharides -- molecules that are notoriously difficult to digest. 



“Life everywhere, even in the deepest depths of the sea, is inexorably connected to the microorganisms around it,” says Logan Peoples, an aquatic microbial ecologist at <a href="https://flbs.umt.edu/newflbs" target="_blank" rel="noreferrer noopener">Flathead Lake Biological Station</a>.



<h2 class="wp-block-heading" id="h-web-of-life-from-surface-to-seafloor">Web of life from surface to seafloor</h2>



The presence of Sargassum at such deep depths has bigger implications for how we understand ocean ecology. This study highlights the close connection between the surface ocean and the deep sea.



When Sargassum sinks, it plays a role in carbon cycling and storage, which affects global climate patterns. 



We’re already seeing significant ecological and economic impacts on coastal communities due to changes in how much Sargassum is found in the tropical Atlantic and Caribbean Sea.



Researchers are eager to figure out just how much Sargassum makes it to the seafloor and how its arrival varies with the seasons and long-term environmental changes. 



Understanding these dynamics could help us predict how deep <a href="https://www.earth.com/news/sea-pigs-unicumbers-strange-stunning-creatures-discovered-abyssal-plains-ccz/" target="_blank" rel="noreferrer noopener">ocean communities</a> respond to shifting environmental conditions.



<h2 class="wp-block-heading" id="h-why-does-this-matter">Why does this matter?</h2>



The discovery of Bathyopsurus nybelini feeding on Sargassum also highlights the importance of advanced technologies in deep-sea exploration. 



Alvin, the submersible that made this observation possible, was recently certified to dive to depths of 6,500 meters. 



This achievement opens new doors for marine research and underscores the significance of developing new tools and techniques to explore and study the ocean’s most remote regions. 



As Anna Michel, Chief Scientist for the <a href="https://ndsf.whoi.edu/" target="_blank" rel="noreferrer noopener">National Deep Submergence Facility</a>, noted, "The discovery described in this paper was possible due to its new deeper diving capabilities, which is very exciting for the Alvin team."



<h2 class="wp-block-heading" id="h-deep-sea-ecosystems-and-human-impact">Deep-sea ecosystems and human impact</h2>



Why should we care about an isopod munching on seaweed at the bottom of the ocean? Well, it all comes down to how connected our planet’s ecosystems are. 



As <a href="https://www.earth.com/news/deep-sea-mining-forms-dust-clouds-that-devastate-marine-life/" target="_blank" rel="noreferrer noopener">human activities change ocean conditions</a> -- from climate change to pollution -- it’s really important to understand how surface processes link to deep ocean ecosystems.



Every discovery, like that of Bathyopsurus nybelini, reminds us that even the most extreme environments on Earth are part of a larger, interconnected web of life. 



The more we learn, the better equipped we are to protect these ecosystems and manage the impacts of our actions.



<h2 class="wp-block-heading" id="h-impact-of-sargassum-on-the-deep-ocean">Impact of Sargassum on the deep ocean</h2>



This study is just the beginning. Scientists plan to continue investigating how Sargassum and other surface-derived materials affect life in the deep sea. 



More research is needed to understand the seasonal and long-term changes in the abundance of Sargassum and its impact on deep-ocean food webs.



As we explore further, new discoveries will undoubtedly reshape our understanding of these hidden ecosystems. 



As Weston puts it, “We’re excited to share its amazing story of adaptation and this important reminder that habitats and organisms on our planet are deeply and intricately connected.”



The ocean is vast, and there is so much more to uncover. So, what other secrets lie in the deep, dark waters? Only time, curiosity, and continued exploration will tell. 



The full study was published in the journal <a href="https://royalsocietypublishing.org/doi/10.1098/rspb.2024.0823" target="_blank" rel="noreferrer noopener">Proceedings of the Royal Society B: Biological Sciences</a>.



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Robot discovers surprising food source for deep ocean creatures

What lies at the bottom of the ocean? For many,...

We've entered an age when a once demonized plant is experiencing a resurgence in acceptance. It’s an era of fading misconceptions and growing understanding. Just as the scent of change permeates the air, so too does the aroma of cannabis among older adults.



<h2 class="wp-block-heading" id="h-age-no-barrier-to-cannabis-use">Age: No barrier to cannabis use </h2>



Older adults are not hiding their affinity for the herb. A recent study by the University of Michigan <a href="https://www.healthyagingpoll.org/" target="_blank" rel="noreferrer noopener">National Poll on Healthy Aging</a> reveals that 21% of individuals aged 50 and above have used some form of cannabis in the past year.



THC, the component that gives cannabis its distinguishing "buzz," is a common ingredient in products ranging from edibles to topical creams.



<h2 class="wp-block-heading" id="h-older-adults-using-cannabis">Older adults using cannabis</h2>



What's fascinating is the consistency of these <a href="https://www.earth.com/news/cannabis-production-may-soon-get-a-major-boost/" target="_blank" rel="noreferrer noopener">cannabis ventures</a>. More than half of the respondents admitted to frequent use, with 12% of adults aged 50 and above admitting to monthly use. 



The study showed that individuals aged 50-64, those in lesser health, or in lower-income households were more likely to report monthly cannabis use.



<h2 class="wp-block-heading" id="h-what-is-driving-the-trend">What is driving the trend?</h2>



The question beckons, "why"? Many older adults turn to cannabis for sleep aid (68%), pain relief (63%), mental health support (53%), or simply to unwind or feel at ease (81%).



However, this newfound <a href="https://www.earth.com/news/recreational-cannabis-use-protects-against-cognitive-decline/" target="_blank" rel="noreferrer noopener">endorsement of cannabis</a> comes with its share of hitches. The most concerning results disclose that 20% of annual users admitted to driving within two hours of usage.



This percentage jumps to a startling 27% among monthly users. In addition, nearly half of frequent users have not discussed their use with <a href="https://www.earth.com/news/cannabis-use-directly-linked-to-head-and-neck-cancer/" target="_blank" rel="noreferrer noopener">healthcare professionals</a>.



<h2 class="wp-block-heading" id="h-growing-risk-of-cannabis">Growing risk of cannabis</h2>



Dr. Erin E. Bonar is a psychologist affiliated with IHPI, the University of Michigan <a href="https://medicine.umich.edu/dept/psychiatry/programs/addiction-center" target="_blank" rel="noreferrer noopener">Addiction Center</a>, and the University of Michigan <a href="https://injurycenter.umich.edu/" target="_blank" rel="noreferrer noopener">Injury Prevention Center</a>.



"With some form of cannabis use now legalized in 38 states and on the ballot this November in several others, and the federal rescheduling process under way, cannabis use is likely to grow,” noted Dr. Bonar.



“But as this poll shows, it is not risk-free, and more attention is needed to identify and reduce those risks."



<h2 class="wp-block-heading" id="h-changing-beliefs-on-cannabis">Changing beliefs on cannabis</h2>



Dr. Bonar emphasized the need for heightened <a href="https://www.earth.com/news/smoking-cannabis-significantly-increases-the-risk-of-heart-attack/" target="_blank" rel="noreferrer noopener">public awareness</a>. With their knowledge of cannabis rooted in the past, older adults may not realize the changes in potency and addictive potential of modern cannabis.



This gap is reflected in the finding that 21% of older adults do not believe cannabis is any stronger now than it was two to three decades ago. Over a quarter were unaware of the possibility of cannabis addiction.



For those who use cannabis, especially those who use it frequently, poll director&nbsp;Dr. Jeffrey Kullgren said the findings show the importance of communicating with a health care provider about their use.



Only 56% of monthly users have had this conversation with their doctor. Such discussions can help spot <a href="https://www.earth.com/news/chemical-found-in-cannabis-plants-can-actually-reduce-cannabis-induced-anxiety/" target="_blank" rel="noreferrer noopener">risky drug interactions</a> and early indications of dependence.



<h2 class="wp-block-heading" id="h-signs-of-dependence">Signs of dependence</h2>



Cannabis dependence is more common than perceived. In the study, 22% of monthly users increased their consumption to achieve the desired effect, and 21% reported a decreased effect from the same amount. 



Furthermore, 17% increased the frequency or quantity of cannabis use and 13% reported strong cravings or desires to use THC-rich cannabis.



Dr. Kullgren, a primary care physician at the <a href="https://www.va.gov/ann-arbor-health-care/" target="_blank" rel="noreferrer noopener">VA Ann Arbor Healthcare System</a> and associate professor of internal medicine at U-M, emphasized the need for transparency about cannabis use. Such dialogue could help avoid <a href="https://www.earth.com/news/cannabis-use-linked-to-elevated-risk-of-severe-covid-19/" target="_blank" rel="noreferrer noopener">unexpected drug interactions</a> and diagnose potential signs of dependence.



<h2 class="wp-block-heading" id="h-navigating-the-landscape-of-cannabis-policy">Navigating the landscape of cannabis policy</h2>



The evolving landscape of <a href="https://www.earth.com/news/cannabis-legalization-does-not-increase-youth-substance-abuse/" target="_blank" rel="noreferrer noopener">cannabis legislation</a> remains a decisive factor in its acceptance and usage among older adults.



As more states and countries relax legal restrictions, there is an increasing need for policies that also address the healthcare needs of the aging population. 



These policies must provide a solid framework for healthcare professionals to guide patients safely and foster informed use.



The delicate balance between enabling access and ensuring safety highlights the urgency for comprehensive public health guidelines and <a href="https://www.earth.com/news/americas-cannabis-capitals-people-these-us-cities-consume-most-marijuana/" target="_blank" rel="noreferrer noopener">educational initiatives</a>.



As legislation advances, policymakers must consider the unique needs of older adults who often utilize cannabis for therapeutic purposes.



<h2 class="wp-block-heading" id="h-pathway-to-future-research">Pathway to future research</h2>



As federal cannabis restrictions shift, research constraints may relax, potentially paving the way for more clinical trials involving cannabis products and human participants.



In conclusion, while the <a href="https://www.earth.com/news/cannabis-smokers-not-lazy-unmotivated-despite-stereotypes/" target="_blank" rel="noreferrer noopener">acceptance and use of cannabis</a> are on the rise, it is crucial we do so responsibly.



Regular communication with healthcare providers, awareness of risks, understanding potential dependencies, and staying updated with the latest research are key elements to focus on.



The report is published by <a href="https://www.healthyagingpoll.org/reports-more/report/how-older-adults-use-think-about-and-discuss-cannabis">National Poll on Healthy Aging</a>.



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Cannabis use is rising significantly among older adults

We've entered an age when a once demonized plant is...

Environmentalists and climate scientists have long emphasized the urgency of preserving the Amazon rainforest.



Contributing significantly towards the global climate-control mechanism, the Amazon rainforest is more than a verdant wonder - it is the breathing "lungs" of our planet.



However, a startling revelation about the world's largest tropical rainforest has raised new concerns.



Almost 40% of the Amazon - the areas most crucial to mitigating climate change - remain unprotected. These regions are not shielded as Indigenous sanctuaries or nature reserves, according to a new report.



<h2 class="wp-block-heading" id="h-amazon-s-unprotected-regions">Amazon's unprotected regions</h2>



These unprotected territories are primarily situated in the extreme southwest of the Amazon in Peru, and the far northeast in Brazil, French Guiana, and Suriname.



What makes these parts exceptionally significant in the climate change combat "Those parts of the Amazon have the biggest, densest trees and the most continuous canopy cover," noted Matt Finer, who leads the Amazon Conservation's <a href="https://www.maaproject.org/en/" target="_blank" rel="noreferrer noopener">Monitoring of the Andean Amazon Project</a> (MAAP).



These regions store large amounts of <a href="https://www.earth.com/news/plants-release-carbon-faster-than-we-expected/" target="_blank" rel="noreferrer noopener">carbon</a>, potentially turning into climate-warming greenhouse gases if jeopardized by fire or logging.



Combining the powers of satellite imaging and machine-learning models, the Amazon Conservation team produced a 3D image of the forest, focusing solely on aboveground vegetation.



The analysis has been instrumental in mapping the most pristine parts of the Amazon that still exist. "It really just gives this overall roadmap in terms of some of the highest carbon areas that are important to protect," said Finer.



<h2 class="wp-block-heading" id="h-diminishing-levels-of-protection">Diminishing levels of protection </h2>



According to the MAAP analysis, 61% of the peak carbon areas in the Amazon are guarded as indigenous reserves or other protected lands. However, the remaining areas lack any formal designation.



Countries like Brazil, Suriname, and French Guiana show a diminished level of protection with only 51% of high carbon areas labeled for preservation. Peru, on the other hand, protects a higher ratio of its critical areas. 



However, certain unprotected regions have been marked for logging, causing concern among environmentalists.



With an earlier analysis indicating that the Amazon held a staggering 71.5 billion tons of carbon, approximately double the <a href="https://www.earth.com/news/global-carbon-dioxide-emissions-hit-a-record-high-in-2023/" target="_blank" rel="noreferrer noopener">global carbon dioxide emissions</a> anticipated for 2022, the need to protect these regions becomes more crucial than ever.



<h2 class="wp-block-heading" id="h-protecting-the-unprotected-amazon">Protecting the unprotected Amazon</h2>



The study also revealed that the Amazon absorbed more carbon than it released in the decade leading up to 2022, offering a glimmer of hope for the global climate scenario. 



Yet, this is still a hot topic of debate. Some research suggests that the Amazon has now become a source of emissions, instead of a carbon sink.



Without a doubt, safeguarding our environment is not just an option, it's our duty. Recognizing the urgency to protect these remaining pristine parts of the Amazon, therefore, is vital for the long-term health of our planet.



<h2 class="wp-block-heading" id="h-global-impact-of-the-amazon">Global impact of the Amazon</h2>



The Amazon rainforest plays a pivotal role in maintaining global climate stability. Often referred to as the "lungs of the Earth," the forest absorbs vast amounts of carbon dioxide, helping to mitigate the effects of <a href="https://www.earth.com/news/climate-change-takes-a-major-toll-on-childrens-health/" target="_blank" rel="noreferrer noopener">climate change</a>.



Its complex ecosystems also serve as critical habitats for millions of species, many of which are found nowhere else on Earth. 



Beyond its ecological significance, the Amazon influences weather patterns across the planet, contributing to rainfall in regions far beyond South America.



<h2 class="wp-block-heading" id="h-the-threat-of-deforestation">The threat of deforestation</h2>



Despite its importance, <a href="https://www.earth.com/news/brazilian-amazon-crisis-deforestation-is-escalating-in-indigenous-territories/" target="_blank" rel="noreferrer noopener">deforestation</a> and degradation continue to threaten the Amazon. Logging, mining, and agricultural expansion have left significant portions of the forest vulnerable.



The destruction of these areas not only accelerates biodiversity loss but also disrupts the Amazon's ability to act as a carbon sink. 



If deforestation trends continue, scientists warn that the Amazon could reach a tipping point where it would shift from being a vital carbon store to a carbon emitter, exacerbating the global climate crisis.



<h2 class="wp-block-heading" id="h-the-future-of-the-amazon">The future of the Amazon</h2>



Protecting the Amazon is not just a regional issue but a global responsibility. Efforts to create more protected areas, enforce conservation laws, and involve indigenous communities in land stewardship are crucial for safeguarding the rainforest’s future.



As the largest tropical <a href="https://www.earth.com/news/the-amazon-rainforest-is-approaching-widespread-collapse/" target="_blank" rel="noreferrer noopener">rainforest</a> on Earth, the Amazon's preservation will play an essential role in the fight against climate change. 



Every unprotected area represents a missed opportunity to secure the planet’s ecological balance, and immediate action is necessary to prevent further loss.



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Nearly 40% of climate-critical Amazon rainforest is unprotected

Environmentalists and climate scientists have long emphasized the urgency of...

A new study reveals that bees and other pollinators are not just attracted to colorful petals or the sweet scent of nectar. The hidden bullseyes in the flower pattern play a significant role in attracting bees.



Hibiscus flowers, for instance, possess an invisible pre-pattern during the early stages of petal formation. This blueprint dictates the size of their bullseyes, a feature that directly impacts their attractiveness to pollinators.



<h2 class="wp-block-heading" id="h-bees-and-flower-patterns">Bees and flower patterns</h2>



Researchers at the <a href="https://www.cam.ac.uk" target="_blank" rel="noreferrer noopener">University of Cambridge</a>'s Sainsbury Laboratory have unearthed some compelling findings. It turns out, <a href="https://www.earth.com/news/world-bee-day-2024-bee-engaged-with-youth/" target="_blank" rel="noreferrer noopener">bees</a> are quite choosy. 



Bees have a clear preference for larger bullseyes and buzz faster towards artificial flower discs with larger bullseyes. This preference may enhance the efficiency of both bees and blossoms.



<h2 class="wp-block-heading" id="h-hidden-patterns-the-making-of-bullseyes">Hidden patterns: The making of bullseyes</h2>



The researchers ventured into the mysterious world of petal designs. Using a small hibiscus plant as a model, they compared closely related plants with identical flower sizes but differently sized bullseyes.



Dr. Edwige Moyroud, a leading researcher at the Sainsbury Laboratory, has been studying the mechanisms underlying pattern formation in petals. She noted that a pre-pattern sets up on the petal surface early in the flower’s formation, long before any visible color shows up on the petal.



<h2 class="wp-block-heading" id="h-evolution-of-bullseye-patterns">Evolution of bullseye patterns</h2>



Study lead author Dr. Lucie Riglet further investigated how these bullseye patterns form and evolve. She discovered that the pre-pattern begins as a small, crescent-shaped region, even before the bullseye is visible on tiny petals that are less than 0.2mm in size.



"At the earliest stage we could dissect, the petals have around 700 cells and are still greenish in color, with no visible purple pigment and no difference in cell shape or size," noted Dr. Riglet.



"When the petal further develops to 4,000 cells, it still does not have any visible pigment, but we identified a specific region where the cells were larger than their surrounding neighbors.&nbsp;This is the pre-pattern.”&nbsp;



The cells that Dr Riglet studied are essential as they mark the position of the bullseye boundary, the line on the petal where the color changes from purple to white. And what happens without a boundary? No bullseye.



Dr. Argyris Zardilis developed a computational model that delivered additional insights. These models showed that hibiscus can change bullseye dimensions very early during the pre-patterning phase by adjusting cell expansion or division later in development.



<h2 class="wp-block-heading" id="h-flower-patterns-from-a-bee-s-perspective">Flower patterns from a bee's perspective</h2>



Dr. Riglet explored the impact of the bullseye patterns on pollinators, using artificial flower discs that mimic the dimensions of the three different bullseyes.



“The <a href="https://www.earth.com/news/honey-bees-face-a-multitude-of-complex-stressors-in-the-field/" target="_blank" rel="noreferrer noopener">bees</a> not only preferred the medium and larger bullseyes over the small bullseye, they were also 25% quicker visiting these larger flower discs," said Dr. Riglet.



"Foraging requires a lot of energy and so if a bee can visit 4 flowers rather than 3 flowers in the same time, then this is probably beneficial for the bee, and also the plants."



These pre-pattern strategies in flowers could have deep evolutionary roots, possibly influencing the diversity of flower patterns across different species. 



The research team, led by Dr. Edwige Moyroud, continues to dig into the signals that generate these early patterns and explore similar pre-patterning mechanisms in other plant organs.



<h2 class="wp-block-heading" id="h-implications-for-agriculture">Implications for agriculture</h2>



The newfound understanding of bullseye patterns' impact on pollinator behavior holds significant implications for both <a href="https://www.earth.com/news/honey-bee-colonies-are-collapsing-as-climate-change-progresses/" target="_blank" rel="noreferrer noopener">conservation and agriculture</a>.



Enhancing our knowledge of these floral designs can aid in developing strategies to bolster pollinator visits, which is vital for the success of crops reliant on pollination. 



By aligning agricultural practices with these insights, farmers could potentially boost yields by modifying or selecting plant varieties with optimal bullseye patterns that are more attractive to pollinators, thereby improving pollination efficiency and crop production.



<h2 class="wp-block-heading" id="h-future-research-into-bullseye-patterns">Future research into bullseye patterns </h2>



The scope of research into bullseye patterns is set to expand, opening new avenues for discovery. Future studies may explore the genetic underpinnings that determine the formation and variability of these patterns in different floral species.



Unraveling the genetic and environmental factors that modulate bullseye dimensions can lead to unprecedented insights into plant-pollinator coevolution. 



Furthermore, exploring the application of computational models across diverse plant species could unveil universal principles of pattern formation, informing not only botanical science but also biomimetic design in technology and art.



<h2 class="wp-block-heading" id="h-bees-bullseyes-and-biodiversity">Bees, bullseyes, and biodiversity</h2>



This research not only advances our understanding of plant biology but also reinforces the intricate bonds between <a href="https://www.earth.com/news/early-spring-flowers-can-save-bees-and-boost-pollination/" target="_blank" rel="noreferrer noopener">plants and their environments</a>. 



The precision of natural designs plays a crucial role in species survival and evolution. The H. trionum, for example, with larger bullseye sizes, possibly attracts more pollinators, enhancing its reproductive success.



So, the next time you admire a flower, remember there's more to it than meets the eye. Beneath the surface beauty, there's a world of complex, precise patterns - nature's very own masterpiece.



The study is published in the journal <a href="https://www.science.org/doi/10.1126/sciadv.adp5574" target="_blank" rel="noreferrer noopener">Science Advances</a>.



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Bees prefer flowers with large bullseyes

A new study reveals that bees and other pollinators are...

In an astounding revelation, scientists have shed new light on the contributing factors behind Amazon rainforest carbon emissions. 



Using high-resolution aerial scans and cutting-edge computational modeling, the researchers have identified wildfires, storms, and selective logging as the dominant culprits.



These disturbances, once thought to have a lesser impact, surprisingly outweigh traditional clear-cutting practices in terms of Amazon carbon loss.



This new understanding challenges long-held assumptions and highlights the urgent need to address multiple drivers of degradation to protect the Amazon’s crucial role in regulating Earth's climate.



<h2 class="wp-block-heading" id="h-unveiling-the-drivers-of-amazon-carbon-loss">Unveiling the drivers of Amazon carbon loss</h2>



Instead of relying on conventional methods, the researchers used drones equipped with state-of-the-art light detection and ranging (LiDAR) sensors.



These sophisticated devices allowed the experts to accurately map and measure tree biomass and <a href="https://www.earth.com/news/circular-economy-needed-to-reduce-americas-carbon-emissions/" target="_blank" rel="noreferrer noopener">carbon emissions</a> across vast stretches of Brazilian forests.



"Here, we estimate changes of forest aboveground carbon (AGC) stocks attributed to both human-induced degradation and natural disturbances, and the postdisturbance regrowth over an area of active land use change in the southern Brazilian Amazon," noted the researchers.



With the backing of NASA's Jet Propulsion Laboratory, the scientists uncovered alarming findings. Of the estimated 90.5 million tons of carbon lost annually, a staggering 60 million tons were attributed to forest degradation caused by <a href="https://www.earth.com/news/wildfires-in-old-growth-amazon-forests-increased-by-152-in-2023/" target="_blank" rel="noreferrer noopener">wildfires</a>, storms, and selective logging.



In contrast, only about 24 million tons could be traced back to clear-cutting, challenging the traditional view of deforestation as the primary driver of carbon loss in the Amazon.



<h2 class="wp-block-heading" id="h-carbon-dynamics-in-forests">Carbon dynamics in forests </h2>



Study co-author K.C. Cushman is an environmental scientist and expert in data analytics at the <a href="https://www.ornl.gov/?gad_source=1&amp;gclid=CjwKCAjwxY-3BhAuEiwAu7Y6sz_5c-_3HT-Qu7Wo4kTAuc8pjs6xQqv5i_IiLOxqGcEn-S4Su1nfFRoCAa8QAvD_BwE">Oak Ridge National Laboratory</a>.



"It's important to calibrate models to local conditions to achieve the best estimates," noted Cushman. "Tree shape varies a lot from one setting to another even if it's the same species."



The research highlights the urgency of addressing these newly uncovered triggers for <a href="https://www.earth.com/news/the-amazon-rainforest-is-approaching-widespread-collapse/" target="_blank" rel="noreferrer noopener">rainforest</a> carbon emissions.



Cushman and his team are now applying similar cutting-edge methodologies to study carbon dynamics in forests across the U.S. Southeast and also in tropical regions, further broadening the understanding of global <a href="https://www.earth.com/news/study-explores-forest-degradation-in-the-atlantic-rainforest/" target="_blank" rel="noreferrer noopener">forest degradation</a>.



While clear-cutting was once considered the primary villain behind carbon emissions in rainforests, the new findings shift the focus to other key contributors.



Coordinated action is urgently needed to safeguard the planet's rainforests, which play an essential role in stabilizing Earth's climate.



<h2 class="wp-block-heading" id="h-amazon-carbon-loss-and-global-warming">Amazon carbon loss and global warming</h2>



The Amazon rainforest is often referred to as the “lungs of the Earth” due to its vast capacity to absorb and store carbon dioxide, acting as a critical buffer against climate change. 



Covering an estimated 5.5 million square kilometers, the Amazon plays a crucial role in regulating the planet’s climate by sequestering massive amounts of carbon from the atmosphere, which helps mitigate global warming.



Recent findings emphasize that disturbances such as wildfires, storms, and selective logging significantly disrupt this delicate balance, leading to a surge in carbon emissions. 



These destructive forces not only release stored carbon but also weaken the forest's ability to regenerate and continue functioning as a major <a href="https://www.earth.com/news/extreme-weather-can-flip-forests-from-carbon-sinks-to-carbon-sources/" target="_blank" rel="noreferrer noopener">carbon sink</a>.



<h2 class="wp-block-heading" id="h-efforts-to-mitigate-climate-change">Efforts to mitigate climate change </h2>



Protecting the Amazon’s integrity is not just a regional issue but a global necessity. As the Amazon continues to lose its ability to act as a carbon sink, efforts to mitigate climate change could face serious setbacks. 



Without immediate intervention, the degradation of this invaluable ecosystem could accelerate, pushing the world closer to climate tipping points.



In light of these new insights into the hidden drivers of carbon emissions, scientists and policymakers are calling for a more comprehensive approach to Amazon rainforest conservation. 



Efforts must move beyond simply preventing clear-cutting and should address forest degradation caused by smaller-scale but equally destructive activities. 



Integrating advanced technologies like LiDAR into conservation strategies will be vital in monitoring and managing forest health. 



Local communities, governments, and international organizations must collaborate to enforce stricter logging regulations, prevent wildfires, and restore degraded areas to safeguard the Amazon’s ecological and carbon-regulating functions.



The study is published in the journal <a href="https://www.pnas.org/doi/10.1073/pnas.2310157121" target="_blank" rel="noreferrer noopener">Proceedings of the National Academy of Sciences</a>.



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Hidden triggers of Amazon carbon emissions revealed

In an astounding revelation, scientists have shed new light on...

It is a well-established fact that the ozone layer shields our planet from harmful ultraviolet radiation, playing a vital role in protecting life on Earth. 



Preserving this layer stands as a golden feather in the environmental preservation cap, representing one of humanity’s greatest successes in global environmental cooperation.



However, when ozone managed to take residence at the ground level, it ceased to be a silent guardian; it became a dangerous threat to both the environment and public health.



<h2 class="wp-block-heading" id="h-impacts-of-ground-level-ozone">Impacts of ground-level ozone </h2>



Ground-level ozone is a harmful combination of pollutants emitted from human activities such as industrial processes, vehicle emissions, and deforestation. 



Under the unforgiving glare of sunlight, ozone pollution is causing considerable disturbance to our ecosystems.



Not only does it pose serious health risks to humans, leading to respiratory and cardiovascular problems, but it also interferes with plants' ability to absorb carbon dioxide, undermining their role in mitigating climate change.



<h2 class="wp-block-heading" id="h-ozone-and-stunted-forest-growth">Ozone and stunted forest growth</h2>



New research published in the journal Nature Geoscience paints an alarming picture of the growing threat posed by ground-level <a href="https://www.earth.com/news/ozone-pollution-may-endanger-millions-by-2050/" target="_blank" rel="noreferrer noopener">ozone pollution</a>. It is significantly stunting the annual growth of tropical forests, with an average reduction of 5.1% in new growth.



The situation is even more severe in Asia, where certain regions are experiencing a dramatic 10.9% decline in new forest growth, highlighting the unequal impact of ozone pollution across the globe.



<h2 class="wp-block-heading" id="h-reduction-in-forest-carbon-storage">Reduction in forest carbon storage </h2>



According to Dr. Alexander Cheesman from <a href="https://www.jcu.edu.au/" target="_blank" rel="noreferrer noopener">James Cook University</a> and the <a href="https://www.exeter.ac.uk/" target="_blank" rel="noreferrer noopener">University of Exeter</a>, tropical forests play a crucial role in offsetting carbon dioxide emissions. "Our study shows that air pollution can jeopardize this critical ecosystem service."



The study estimates that ozone pollution has prevented the capture of a staggering 290 million tons of carbon annually since 2000.



This significant loss of <a href="https://www.earth.com/news/global-carbon-dioxide-emissions-hit-a-record-high-in-2023/" target="_blank" rel="noreferrer noopener">carbon</a> sequestration capacity underscores the detrimental effect ozone pollution is having on tropical forests, which are critical for absorbing excess atmospheric carbon and mitigating the impacts of climate change.



"The resulting cumulative loss equates to a 17% reduction in carbon removal by tropical forests so far this century," said Dr. Cheesman.



<h2 class="wp-block-heading" id="h-ozone-pollution-and-forest-restoration-efforts">Ozone pollution and forest restoration efforts</h2>



Urbanization, industrialization, and increased burning of <a href="https://www.earth.com/news/air-pollution-from-fossil-fuels-kills-5-million-people-each-year/" target="_blank" rel="noreferrer noopener">fossil fuels</a> have escalated emissions of "precursor" molecules, such as nitrogen oxides, that lead to ozone formation. 



"Ozone concentrations across the tropics are projected to rise further due to increased precursor emissions and altered atmospheric chemistry in a warming world," said Dr. Flossie Brown, co-lead author of the study.



These rising ozone levels pose a significant threat to current and future forest restoration efforts, particularly in areas critical to mitigating climate change. 



<h2 class="wp-block-heading" id="h-improving-air-quality">Improving air quality</h2>



"We found that areas of current and future forest restoration are disproportionately affected by this elevated ozone. It is clear that <a href="https://www.earth.com/news/trees-and-bushes-near-highways-improve-air-quality/" target="_blank" rel="noreferrer noopener">air quality</a> will continue to play an important but often overlooked part in the way forests absorb and store carbon," said Dr. Brown. 



Improving air quality is vital for enabling forests to effectively absorb and store carbon, noted study co-author Professor Stephen Sitch.



"Embracing a future with greater environmental protection would lead to reduced ground-level ozone, improved air quality, and the additional benefit of enhanced carbon uptake in tropical forests," said Professor Stitch.



<h2 class="wp-block-heading" id="h-the-dual-nature-of-ozone">The dual nature of ozone</h2>



Ozone exists in two forms: one as a protective shield in the stratosphere and the other as a harmful pollutant at ground level. 



While stratospheric ozone is essential for blocking harmful ultraviolet radiation, ground-level ozone (also known as tropospheric ozone) forms when pollutants from vehicles, industrial activities, and fires react with sunlight.



This ground-level ozone acts as a <a href="https://www.earth.com/news/greenhouse-gas-emissions-reach-another-all-time-high/" target="_blank" rel="noreferrer noopener">greenhouse gas</a>, trapping heat and contributing to climate change.



Ozone pollution is not only a threat to tropical forests but also to a wide range of ecosystems. In addition to stunting forest growth, ozone can damage crops, reduce agricultural productivity, and affect water quality by altering plant and soil interactions.



The broader ecological consequences of ozone pollution are becoming clearer, signaling an urgent need for stricter air quality regulations and the reduction of emissions that lead to its formation. 



The study is published in the journal <a href="https://dx.doi.org/10.1038/s41561-024-01530-1" target="_blank" rel="noreferrer noopener">Nature Geoscience</a>.



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Ozone pollution is stunting tropical forest growth

It is a well-established fact that the ozone layer shields...

Cannabis agriculture is experiencing a revolution brought on by genetic research, propelling a new era in the cultivation and production of this globally sought-after crop.



At the heart of this transformation is the ability to manipulate plant genetics for optimized growth and productivity. 



<h2 class="wp-block-heading" id="h-cannabis-genetics-and-enhanced-production">Cannabis genetics and enhanced production </h2>



A recent breakthrough centers around a key gene called CsMIKC1, which influences the number of flowering sites in Cannabis sativa.



The role of this gene in the development of the inflorescence, the flowering part of a plant, presents brand new opportunities for enhancing productivity in <a href="https://www.earth.com/news/infectious-pathogen-has-spread-to-90-percent-of-cannabis-farms-in-california/" target="_blank" rel="noreferrer noopener">cannabis farming</a>.



Through meticulous <a href="https://www.earth.com/news/boosting-crop-colors-with-gene-editing-can-improve-weed-control/" target="_blank" rel="noreferrer noopener">gene editing</a> and functional analysis, scientists have uncovered the substantial impact of CsMIKC1 on flower production. The discovery could lead to transformative change in agricultural practices.



The research may ultimately pave the way to the creation of highly productive and resilient cannabis strains that are custom-designed to maximize both medicinal and industrial uses. This would help to address the growing global demand for specialized <a href="https://www.earth.com/news/cannabinoids-as-pesticides-study-reveals-potential-of-hemp-compounds/" target="_blank" rel="noreferrer noopener">cannabinoids</a> and hemp-based products.



<h2 class="wp-block-heading" id="h-global-demand-for-cannabis-products">Global demand for cannabis products</h2>



The perceived value of Cannabis sativa is largely hinged on its cannabinoids, derived chiefly from female inflorescences. However, optimizing flower and grain yield has been a daunting task due to inadequately explored genetic control of inflorescence development. 



As the global demand for cannabis-derived products escalates, it is vital to understand the regulatory mechanisms that lie beneath the surface.



Research into the genetic influences on inflorescence development can lay the fundamental groundwork for developing strategies to meet global production requirements.



<h2 class="wp-block-heading" id="h-inflorescence-in-cannabis-sativa">Inflorescence in Cannabis sativa</h2>



A collaborative team of scientists led by the <a href="https://www.caas.cn/en/" target="_blank" rel="noreferrer noopener">Chinese Academy of Agricultural Sciences</a> has gained significant insights into the genetic makeup of inflorescence.



"Female inflorescence is the primary output of medical cannabis. It contains hundreds of cannabinoids that accumulate in the glandular trichomes," noted the researchers. "However, little is known about the genetic mechanisms governing cannabis inflorescence development."



The experts identified the CsMIKC1 gene as a controlling factor in cannabis flowering. They examined how mutations and overexpression of CsMIKC1 influenced flower and grain production. The study highlights the gene’s potential for <a href="https://www.earth.com/news/reducing-nitrogen-oxide-pollution-could-boost-crop-yields/" target="_blank" rel="noreferrer noopener">amplifying crop yields</a>.



<h2 class="wp-block-heading" id="h-extensive-genetic-network">Extensive genetic network </h2>



In their investigation, the scientists identified a key quantitative trait locus (QTL) on chromosome 8 linked to the number of inflorescences per branch, leading to the discovery of the CsMIKC1 gene. 



This gene works as a transcription factor, influencing inflorescence growth by interacting with proteins CsBPC2 and CsVIP3. 



When the CsMIKC1 gene was overexpressed in transgenic plants, there was a significant hike in the number of inflorescence, flower production, and grain yield. 



Conversely, mutants with CsMIKC1 showed stunted growth and lower yields, highlighting the regulatory significance of this gene. 



The study also revealed the influence of ethylene signaling pathways on CsMIKC1. By mapping key genes regulated by CsMIKC1, the researchers identified an extensive genetic network that governs inflorescence formation, providing crucial insights for future crop enhancement strategies.



<h2 class="wp-block-heading" id="h-optimizing-crop-performance">Optimizing crop performance </h2>



Study co-author Dr. Jianguang Su is an expert at the Chinese Academy of Agricultural Sciences.



“The identification of CsMIKC1 as a regulator of inflorescence development marks a significant step forward in cannabis genetics. This gene is crucial in determining flower yield, which has profound implications for both medicinal and industrial uses," said Dr. Su. 



"By utilizing genetic modification techniques, we can develop targeted approaches to optimize crop performance, enhancing the Cannabis industry’s potential. This research not only deepens our understanding but also opens up exciting possibilities for developing high-yielding strains.”



<h2 class="wp-block-heading" id="h-the-future-of-cannabis-cultivation">The future of cannabis cultivation</h2>



Looking ahead, it's clear that the discovery of CsMIKC1 and its influence on inflorescence development opens up a whole new domain for genetic engineering to boost cannabis yields.



This newfound knowledge can stimulate the creation of novel cultivars with improved flower and grain production, optimizing agricultural efficiency. 



Furthermore, the involvement of ethylene signaling pathways presents opportunities for refined agronomic practices, such as ethylene treatments, to further amplify flower yield.



These advancements hold enormous promise to escalate cannabis production, keeping pace with the accelerating demand for <a href="https://www.earth.com/news/cannabis-may-be-a-highly-effective-treatment-for-cancer-patients/" target="_blank" rel="noreferrer noopener">medicinal</a> and industrial applications globally.



The study is published in the journal <a href="https://academic.oup.com/hr/article/11/8/uhae161/7691881" target="_blank" rel="noreferrer noopener">Horticulture Research</a>.



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Cannabis production may soon get a major boost

Cannabis agriculture is experiencing a revolution brought on by genetic...

Endangered animals