Georissa luchana

<p>Scientists have recently uncovered remnants of DNA within the fossilized remains of a <a href="https://www.earth.com/news/fossilized-sea-turtle-flattened-dinosaur/">sea turtle</a>, closely related to contemporary Kemp’s ridley and olive ridley turtles, dating back six million years.&nbsp;</p>



<p>This finding marks one of the infrequent instances where genetic material has been identified in ancient vertebrate fossils. The study is published in the <a href="http://dx.doi.org/10.1080/02724634.2023.2254356" target="_blank" rel="noreferrer noopener"><em>Journal of Vertebrate Paleontology</em></a><em>.</em></p>



<h2 class="wp-block-heading" id="h-bone-cells-nbsp">Bone cells&nbsp;</h2>



<p>The fossil, discovered along the Caribbean coast of Panama in 2015, presented notably well-preserved bone cells, known as osteocytes.&nbsp;</p>



<p>Though the fossil is incomplete, featuring a relatively intact carapace - the turtle’s shell - but lacking the rest of the skeleton, researchers estimate the turtle would have measured about a foot (30 cm) in length during its lifetime.</p>



<h2 class="wp-block-heading" id="h-dna-remnants">DNA remnants</h2>



<p>In some of these osteocytes, the cell nuclei remained intact and responded to a specific chemical solution. This reaction allowed the scientists to detect the remnants of DNA, essential for an organism’s development and functioning, explained study lead author Edwin Cadena, a paleontologist at the Universidad del Rosario in Bogota and the Smithsonian Tropical Research Institute.</p>



<p>“I want to point out that we did not extract DNA, we only were able to recognize the presence of DNA traces in the nuclei,” Cadena said.&nbsp;</p>



<p>Given its perishable nature, DNA preservation in ancient remains is rare, but not unprecedented, with discoveries of DNA remnants dating back to around two million years in some ancient specimens from Greenland.</p>



<p>The only vertebrate fossils older than the newly studied turtle and showing similar DNA remnants belonged to two dinosaurs – Tyrannosaurus, from around 66 million years ago, and Brachylophosaurus, from about 78 million years ago. DNA remnants have also been reported in insects dating back tens of millions of years.</p>



<h2 class="wp-block-heading" id="h-evolutionary-history-nbsp">Evolutionary history&nbsp;</h2>



<p>The turtle in question belongs to the genus Lepidochelys, which includes two of the seven existing sea turtle species – the Kemp’s ridley, primarily found in the Gulf of Mexico, and the more widespread olive ridley.&nbsp;</p>



<p>This fossil is pivotal in shedding light on the evolutionary history of this genus, which remains largely unclear.&nbsp;</p>



<p>Due to the incomplete nature of the remains, the researchers have refrained from identifying the turtle by its species.</p>



<h2 class="wp-block-heading" id="h-biomolecular-remains-nbsp">Biomolecular remains&nbsp;</h2>



<p>“Each fossil, each fossil site has specific conditions of preservation that in some cases could have favored preservation of original biomolecular remains such as proteins and DNA," said Cadena.</p>



<p>"Maybe in the future and with more studies of this kind, we could be able at some point to sequence very small pieces of DNA and to infer things about their close relatives or involve that information in a broader molecular evolutionary study."</p>



<h2 class="wp-block-heading" id="h-ridley-turtles-nbsp">Ridley turtles&nbsp;</h2>



<p>Ridley turtles, specifically those in the Lepidochelys genus, are known for their relatively small size compared to other sea turtles and unique nesting habits.</p>



<p>There are two species within this genus: the Kemp's ridley turtle (Lepidochelys kempii) and the olive ridley turtle (Lepidochelys olivacea).</p>



<h3 class="wp-block-heading" id="h-size">Size</h3>



<p>Ridley turtles are among the smallest sea turtles, with adults usually weighing between 75 and 100 pounds.</p>



<h3 class="wp-block-heading" id="h-shell">Shell</h3>



<p>Their carapace (upper shell) is broad and somewhat heart-shaped, typically olive-green in Kemp’s ridleys and grayish-green in olive ridleys.</p>



<h3 class="wp-block-heading" id="h-limbs">Limbs</h3>



<p>They possess flippers with clawless tips, which are adapted for swimming in open oceans.</p>



<h3 class="wp-block-heading" id="h-habitat-and-distribution">Habitat and distribution</h3>



<p>Kemp's ridley is primarily found in the Gulf of Mexico and along the Atlantic coast of North America. These turtles prefer coastal habitats like bays, estuaries, and lagoons.</p>



<p>Olive ridley is found in tropical regions of the Pacific, Atlantic, and Indian Oceans. They are often found in open waters but migrate to coastal areas for nesting.</p>



<h3 class="wp-block-heading" id="h-nesting">Nesting</h3>



<p>One notable behavior of ridley turtles is “arribada,” a mass nesting phenomenon where thousands of females come ashore simultaneously to lay eggs.&nbsp;</p>



<p>Olive ridley turtles are particularly known for this behavior, with significant arribada events occurring in places like Ostional, Costa Rica.</p>



<h3 class="wp-block-heading" id="h-diet">Diet</h3>



<p>Ridley turtles are omnivores, consuming a variety of food items, including crabs, shrimp, mollusks, jellyfish, and occasionally algae and seaweed.</p>



<h3 class="wp-block-heading" id="h-conservation-status">Conservation status</h3>



<p>Both species of ridley turtles are listed under the IUCN Red List. Kemp's ridley is classified as critically endangered, with major threats including habitat loss, accidental capture in fishing gear (bycatch), and climate change affecting their nesting sites.</p>



<p>Olive ridley is listed as vulnerable, facing threats like illegal egg collection, bycatch, and habitat destruction.</p>



<h3 class="wp-block-heading" id="h-conservation-efforts-nbsp">Conservation efforts&nbsp;</h3>



<p>Various conservation programs and legal protections are in place to help conserve ridley turtles, such as:</p>



<ul>
<li>Establishing protected areas and wildlife refuges.</li>



<li>Implementing regulations and initiatives to reduce bycatch.</li>



<li>Engaging in public education and awareness campaigns.</li>
</ul>



<h3 class="wp-block-heading" id="h-arribadas-nbsp">Arribadas&nbsp;</h3>



<p>The synchronized nesting events, or arribadas, are crucial for the survival of these species as it overwhelms predators, ensuring that more hatchlings can safely reach the ocean.</p>



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DNA remnants found in six million-year-old sea turtle

Scientists have recently uncovered remnants of DNA within the fossilized...

<p>A new study led by the University of South Carolina (USC) has found that distinct variations in the attributes of wildflowers, depending on their respective <a href="https://www.earth.com/news/pollinators-are-not-just-attracted-to-plants-by-scent-but-also-by-humidity/">pollinators</a>, are driven by a small number of key genetic differences.</p>



<p>Wildflowers exhibit unique sets of characteristics - termed “pollination syndromes” - that have evolved to cater to specific animal pollinators, such as insects or birds.&nbsp;</p>



<h2 class="wp-block-heading" id="h-penstemons">Penstemons</h2>



<p>While most species within the Penstemon genus present wide, blue flowers, serving as landing spots for bees, evolution has led some species to develop narrow, red, tubular flowers, catering to hummingbird pollination.</p>



<p>The North American wildflower genus&nbsp;<em>Penstemon</em>&nbsp;displays remarkable floral syndrome convergence, with at least 20 separate lineages that have evolved from ancestral bee pollination syndrome (wide blue-purple flowers that present a landing platform for bees and small amounts of nectar) to hummingbird pollination syndrome (bright red narrowly tubular flowers offering copious nectar).&nbsp;</p>



<h2 class="wp-block-heading" id="h-focus-of-the-study-nbsp">Focus of the study&nbsp;</h2>



<p>Related taxa that differ in floral syndrome offer an attractive opportunity to examine the genomic basis of complex trait divergence,” the authors explained.</p>



<p>The objective of this research was to explore how these distinctive pollination syndromes are preserved genetically.&nbsp;</p>



<h2 class="wp-block-heading" id="h-how-the-research-was-conducted-nbsp">How the research was conducted&nbsp;</h2>



<p>The team sequenced the DNA of 229 plants from three related species of the Penstemon genus: <em>P. neomexicanus</em> and <em>P. virgatus</em>, which are bee-pollinated, and <em>P. barbatus</em>, adapted to hummingbird pollination.</p>



<h2 class="wp-block-heading" id="h-what-the-researchers-learned-nbsp">What the researchers learned&nbsp;</h2>



<p>Despite the stark differences in floral attributes, the experts found a relatively small number of genetic differences between <em>P. barbatus</em> and its bee-pollinated relatives.&nbsp;</p>



<p>Moreover, plants from the same geographical vicinity exhibited greater genetic similarity compared to those from varied locations, regardless of the species. These findings suggest that a genetic blending occurs between wildflowers adapted to both bee and hummingbird pollination.&nbsp;</p>



<h2 class="wp-block-heading" id="h-varied-pollinators-nbsp">Varied pollinators&nbsp;</h2>



<p>However, the researchers identified 21 sites that showcased consistent differences among species with varied pollinators. These sites are dispersed throughout the genome, suggesting an increased likelihood of the disruption of complementary floral traits by recombination, resulting in hybrids with diminished success.&nbsp;</p>



<p>Interestingly, three of these identified genetic variances were located proximal to genomic regions that determine flower color, width, and nectar volume - traits distinctive to different pollination syndromes.</p>



<h2 class="wp-block-heading" id="h-nbsp-flower-traits">&nbsp;Flower traits</h2>



<p>The study provides evidence of occasional hybridization between neighboring bee- and hummingbird-pollinated Penstemon species, alongside an intense selection pressure to retain flower traits adapted to each type of pollinator.</p>



<p>“Although bee- vs. hummingbird-pollinated species are easily distinguished in the field, based on unmistakable differences in flowers and the overall stature of the plant, a surprisingly small number of genetic regions distinguish these different species at the genetic level,” concluded Carolyn Wessinger, an assistant professor of Evolution and Plant Biology at USC.</p>



<p>The study is published in the journal <a href="https://doi.org/10.1371/journal.pbio.3002294" target="_blank" rel="noreferrer noopener"><em>PLoS Biology</em></a><em>.</em></p>



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Just a few genetic differences tailor flowers to specific pollinators

A new study led by the University of South Carolina...

<p>In a recent study, scientists have investigated some curious behavior among fish-eating killer whales in the Pacific Northwest.&nbsp;For decades, these toothed whales have been harassing and killing porpoises, but without eating them.</p>



<p>The research was co-led by Deborah Giles of Wild Orca and Sarah Teman of the <a href="https://www.seadocsociety.org/killer-whale-facts#:~:text=Three%20distinct%20types%20of%20killer,as%20shown%20in%20recent%20studies." target="_blank" rel="noreferrer noopener">SeaDoc Society</a>, a program of the UC Davis School of Veterinary Medicine.</p>



<h2 class="wp-block-heading" id="h-mysterious-conduct-nbsp">Mysterious conduct&nbsp;</h2>



<p>The team examined over 60 years of interactions between Southern Resident killer whales and porpoises in the Salish Sea to clarify this mysterious conduct.</p>



<p>These <a href="https://www.earth.com/news/lack-of-prey-is-changing-the-behavior-of-killer-whales/">killer whales</a>, an endangered group with a count of only 75, are significantly dependent on Chinook salmon for their survival. These fish are also endangered.</p>



<h2 class="wp-block-heading" id="h-unique-ecology">Unique ecology</h2>



<p>Giles pointed out that the killer whales, despite residing in the same waters as their marine mammal-eating counterparts, possess a distinct ecology and culture, making them exclusively fish-eaters.&nbsp;</p>



<p>“I am frequently asked, why don’t the Southern Residents just eat seals or porpoises instead?” said Giles.&nbsp;</p>



<p>“It's because fish-eating killer whales have a completely different ecology and culture from orcas that eat marine mammals - even though the two populations live in the same waters."&nbsp;</p>



<p>"So we must conclude that their interactions with porpoises serve a different purpose, but this purpose has only been speculation until now.”</p>



<h2 class="wp-block-heading" id="h-plausible-theories-nbsp">Plausible theories&nbsp;</h2>



<p>The study authors analyzed 78 documented porpoise harassment incidents from 1962 to 2020, proposing three plausible explanations.&nbsp;</p>



<p>One suggestion is that this behavior serves as social play for the killer whales, allowing them to bond, communicate, and enjoy themselves, ultimately benefiting group coordination and teamwork.&nbsp;</p>



<p>Alternatively, harassing porpoises might be a method for the whales to sharpen their salmon-hunting skills, using the porpoises as practice targets without intending to eat them.&nbsp;</p>



<p>A third hypothesis introduces the concept of “mismothering behavior,” where whales may offer care to perceived weaker porpoises, mirroring their instinct to assist group members.</p>



<h2 class="wp-block-heading" id="h-mothering-challenges">Mothering challenges</h2>



<p>“Mismothering behavior - also known as ‘displaced epimeletic behavior’ to scientists - might be due to their limited opportunities to care for young,” explained Giles.&nbsp;</p>



<p>“Our research has shown that due to malnutrition, nearly 70% of Southern Resident killer whale pregnancies have resulted in miscarriages or calves that died right away after birth.”</p>



<h2 class="wp-block-heading" id="h-complex-animals">Complex animals</h2>



<p>The exact motivations behind porpoise harassment by these whales may remain elusive.&nbsp;The study confirms that porpoises are not included in the Southern Resident killer whale's diet, as these whales feed almost exclusively on Chinook salmon.&nbsp;</p>



<p>“Killer whales are incredibly complex and intelligent animals. We found that porpoise-harassing behavior has been passed on through generations and across social groupings. It’s an amazing example of killer whale culture,” said Teman.</p>



<p>“Still, we don’t expect the Southern Resident killer whales to start eating porpoises. The culture of eating salmon is deeply ingrained in Southern Resident society. These whales need healthy salmon populations to survive.”</p>



<h2 class="wp-block-heading" id="h-salmon-conservation">Salmon conservation </h2>



<p>This dietary constraint underlines the crucial need for salmon conservation efforts in the Salish Sea to ensure the Southern Residents' survival and the health of the region’s ecosystem.&nbsp;</p>



<p>The study received funding and support from numerous institutions, including Wild Orca, SeaDoc Society, University of Exeter, Fisheries and Oceans Canada, Orca Behavior Institute, NOAA, Cascadia Research, The Whale Museum, Center for Whale Research, ORCA at Everett Community College, Bay Cetology, North Gulf Oceanic Society, George Mason University, and Marine-Med.</p>



<p>The study is published in the journal <a href="https://onlinelibrary.wiley.com/doi/10.1111/mms.13073"><em>Marine Mammal Science</em></a><em>.</em></p>



<p><em>Image Credit: Wild Orca</em></p>



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Killer whales have been killing porpoises for decades, but why?

In a recent study, scientists have investigated some curious behavior...

<p>An emerging <a href="https://www.earth.com/news/why-are-some-sea-stars-more-susceptible-to-disease/">disease</a> that was believed to only cause hoof deformation in elk appears to trigger molecular changes throughout the entire animal system.&nbsp;</p>



<p>This is the conclusion of an epigenetic study by experts at <a href="https://vetmed.wsu.edu/departments/veterinary-microbiology-and-pathology/elk-hoof-disease/" target="_blank" rel="noreferrer noopener">Washington State University</a> (WSU), who set out to gain a better understanding of elk treponeme-associated hoof disease.</p>



<h2 class="wp-block-heading" id="h-rapidly-spreading-disease-nbsp">Rapidly spreading disease&nbsp;</h2>



<p>In a previous <a href="https://news.wsu.edu/press-release/2021/09/16/wsu-researchers-discover-one-way-elk-become-infected-devastating-hoof-disease/" target="_blank" rel="noreferrer noopener">study from WSU</a>, researchers discovered that healthy elk can contract the disease by simply walking on soil contaminated by infected hooves. </p>



<p>The experts described the disease as "devastatingly painful," noting that it often leads to death.&nbsp;</p>



<p>"Affected elk suffer with deformed hooves, lameness, and increasingly poor health as a result of the infection," said the report.&nbsp;</p>



<p>"The disease is spreading unabated and has been found in Washington, Idaho, Oregon, and California."</p>



<h2 class="wp-block-heading" id="h-physiological-changes-nbsp">Physiological changes&nbsp;</h2>



<p>The results of the latest study indicate that the molecular changes caused by hoof disease might not be limited to where the infection is visible, but could potentially be affecting the entire physiology of the elk.</p>



<p>According to the researchers, the illness severely impairs the elk’s ability to find food and escape predators.</p>



<h2 class="wp-block-heading" id="h-heritable-impacts">Heritable impacts</h2>



<p>The research suggests that the disease-induced changes may be heritable, but it is not yet clear whether this means subsequent generations of elk may be more prone to catching the disease.&nbsp;</p>



<p>“It’s not just the absence or presence of the infection. It’s affecting the animal’s entire physiology, all the cells,” said study senior author Michael Skinner, a WSU biologist. “It shows that there's a molecular impact by the presence of the disease organisms.”</p>



<h2 class="wp-block-heading" id="h-epigenetic-changes-nbsp">Epigenetic changes&nbsp;</h2>



<p>Epigenetics refers to stable molecular processes that influence gene behavior, independently of the DNA sequence.&nbsp;</p>



<p>These changes in an organism’s epigenetics can be brought about by various factors such as nutrition or the environment. The current study suggests that infectious diseases can also play a part.</p>



<h2 class="wp-block-heading" id="h-how-the-research-was-conducted-nbsp">How the research was conducted&nbsp;</h2>



<p>The research team analyzed cells from the leg tendons of 55 Roosevelt and Rocky Mountain elk, both infected and uninfected.&nbsp;</p>



<p>These specimens were provided by hunters and procured by wildlife agencies across five states: Washington, Oregon, California, Idaho, and South Dakota.</p>



<h2 class="wp-block-heading" id="h-what-the-researchers-learned-nbsp">What the researchers learned&nbsp;</h2>



<p>Interestingly, the findings reveal epigenetic changes associated exclusively with the disease in the infected elk.&nbsp;</p>



<p>Considering that the tendon cells were located away from the hoof infection, this suggests that the changes induced by the treponeme-associated hoof disease could be systemic.</p>



<h2 class="wp-block-heading" id="h-study-implications-nbsp">Study implications&nbsp;</h2>



<p>According to Margaret Wild, this research is only the tip of the iceberg.&nbsp;</p>



<p>“We’re building foundational knowledge to understand this disease,” said Wild. “By doing this epigenetic study, we can see apparent systemic impacts from the infection, even though we don't see those pathological changes when we look at the elk.”</p>



<p>The disease's name originates from the treponeme bacteria. However, researchers now theorize that it might be caused by multiple bacterial strains.&nbsp;</p>



<h2 class="wp-block-heading" id="h-future-research-nbsp">Future research&nbsp;</h2>



<p>Wild and her team are currently undertaking studies in captive elk to identify the transmission mode of the disease. This research could also shine a light on factors like diet that may alter the animals' vulnerability to the infection.</p>



<p>While elk remain the only wild species detected with the disease, WSU researchers are exploring possible connections to bovine digital dermatitis found in cattle.&nbsp;</p>



<p>There's also an ongoing effort using computer modeling to identify environmental factors, such as soil type, moisture, and geography, which might determine where elks are more susceptible.</p>



<p>“This is a brand-new emerging disease that hardly anything is known about,” Wild said. “We are taking a multi-pronged approach and conducting a broad range of exploratory studies."&nbsp;</p>



<p>"Our goal is to do as much research as we can to learn about all the impacts this disease is having on individuals and elk populations to help wildlife managers address the disease.”</p>



<p>The study is published in the journal <a href="http://dx.doi.org/10.1038/s41598-023-42546-8" target="_blank" rel="noreferrer noopener"><em>Scientific Reports</em></a>.</p>



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Emerging hoof disease may cause physiological changes in elk

An emerging disease that was believed to only cause hoof...

<p>The capacity for individual innovation is often seen as a marker of intelligence across species, with elephants being a focal point of such studies due to their nuanced problem-solving skills.&nbsp;</p>



<p>A new study led by the <a href="http://www.cuny.edu/">City University of New York</a> (CUNY) has reported the findings of a six-month investigation, shedding light on the capabilities of individual wild <a href="https://www.earth.com/news/for-asian-elephants-shrinking-habitats-will-increase-conflicts/">Asian elephants</a> in securing food by solving puzzles that unlock storage boxes.</p>



<h2 class="wp-block-heading" id="h-capacity-to-adapt">Capacity to adapt</h2>



<p>“An animal’s capacity for innovation or solving novel problems likely has important implications for how quickly they can adapt to environmental change. Asian elephants,&nbsp;<em>Elephas maximus</em>, living in zoos have previously demonstrated a capacity to innovate, but problem solving has never been studied experimentally in a wild elephant population,” the authors explained.</p>



<p>“This is the first research study to show that individual wild elephants have different willingness and abilities to problem solve in order to get food,” said lead author Sarah Jacobson, a doctoral student in Animal Cognition at CUNY.&nbsp;</p>



<p>“This is important knowledge, because how animals think and innovate may influence their ability to survive in environments that are rapidly changing due to human presence.”</p>



<h2 class="wp-block-heading" id="h-focus-of-the-study">Focus of the study</h2>



<p>This study was carried out at the Salakpra Wildlife Sanctuary in Kanchanaburi, Thailand, utilizing motion-activated cameras to monitor 77 wild Asian elephants as they decided whether to engage with puzzle boxes containing aromatic jackfruit within three uniquely configured compartments.&nbsp;</p>



<p>The methods of access varied: elephants could pull on a chain, push a door, or slide a door open, each method requiring a different approach. The elephants were left to interact with the puzzle boxes autonomously to learn the unlocking mechanisms.</p>



<h2 class="wp-block-heading" id="h-what-the-researchers-learned-nbsp">What the researchers learned&nbsp;</h2>



<p>Out of the elephants observed, 44 decided to engage with the boxes, showing varying levels of innovative interactions.&nbsp;</p>



<p>The experts found that elephants which engaged more frequently and persistently with the boxes had higher success rates in accessing food from all the differently configured compartments.&nbsp;</p>



<p>In the end, 11 elephants managed to solve one type of compartment, eight cracked two types, and five elephants showcased the highest level of innovation by solving all three.</p>



<h2 class="wp-block-heading" id="h-study-implications-nbsp">Study implications&nbsp;</h2>



<p>“Conflict involving humans and elephants is increasing due to loss of natural habitat and agricultural encroachment into what is left of it,” said senior author Joshua Plotnik, a professor of Psychology at CUNY.</p>



<p>“Investigating innovation and problem solving in elephants can inform our understanding of wild elephant cognitive flexibility and its potential impact on conservation management and human-elephant conflict mitigation,” he concluded.</p>



<h2 class="wp-block-heading" id="h-more-about-elephant-innovation">More about elephant innovation</h2>



<p>Elephants are remarkable animals, known for their intelligence and complex social behaviors. As mentioned by the CUNY team, their "innovations" are more about adapting and evolving to their environment over time, rather than inventing or creating new tools or technologies.&nbsp;</p>



<h3 class="wp-block-heading" id="h-social-structures">Social structures</h3>



<p>Elephants have intricate social structures, which they use to manage group dynamics, support each other, and protect young members.</p>



<h3 class="wp-block-heading" id="h-communication">Communication</h3>



<p>They use a variety of vocalizations and even subsonic rumbles that can travel long distances to communicate with one another.</p>



<h3 class="wp-block-heading" id="h-memory">Memory</h3>



<p>Known for their excellent memory, elephants can remember the locations of water sources over vast distances and recall these during dry seasons.</p>



<h3 class="wp-block-heading" id="h-problem-solving-abilities">Problem-solving abilities</h3>



<p>Elephants are known to work together to solve problems. For example, they might coordinate efforts to move obstacles or assist a member in distress.</p>



<h3 class="wp-block-heading" id="h-empathy-and-mourning-nbsp">Empathy and mourning&nbsp;</h3>



<p>Elephants display empathetic behaviors and even engage in rituals that resemble mourning when a member of their group dies.</p>



<h3 class="wp-block-heading" id="h-use-of-tools">Use of tools</h3>



<p>While not as advanced as some species, elephants do use basic tools. They might use branches to swat flies, or utilize their trunks in sophisticated ways to gather food, drink water, or give themselves dust or mud baths for skin protection.</p>



<h3 class="wp-block-heading" id="h-learning-and-imitation">Learning and imitation</h3>



<p>They have the ability to learn new behaviors, both from other elephants and through direct experience. They can also imitate sounds and behaviors.</p>



<p>While these may not be "innovations" in the human sense, these adaptations and evolved behaviors highlight the intelligence and complexity of elephants as a species.</p>



<p>The study is published in the journal <a href="https://doi.org/10.1016/j.anbehav.2023.08.019"><em>Animal Behavior</em></a><em>.</em></p>



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Wild Asian elephants exhibit strong capacity for innovation

The capacity for individual innovation is often seen as a...

Wildlife,Conservation,Day,Wild,Animals,To,The,Home.,Or,Wildlife

<p>A new study underscores the importance of protected lands in preserving biodiversity, especially for vertebrates like amphibians, reptiles, mammals, and birds. </p>



<p>The research, led by the <a href="https://serc.si.edu/" target="_blank" rel="noreferrer noopener">Smithsonian Environmental Research Center</a> (SERC) and <a href="https://www.conservation.org/" target="_blank" rel="noreferrer noopener">Conservation International</a>, sheds light on the critical role of effective governance and supports the United Nations’ "30 by 30" initiative. </p>



<p>The findings also emphasize the need for a multifaceted approach to conservation that goes beyond protected areas alone.</p>



<h2 class="wp-block-heading" id="h-conservation-and-protected-lands">Conservation and protected lands</h2>



<p><a href="https://www.earth.com/news/humans-negatively-impact-wildlife-even-in-protected-areas/" target="_blank" rel="noreferrer noopener">Human activities</a> have dramatically escalated the natural extinction rate of vertebrates, increasing it by 22 times. This rapid loss of biodiversity destabilizes food webs and endangers essential ecological services such as crop pollination, healthy diets, and disease control. </p>



<p>"Humans are inextricably dependent on biodiversity for survival,” says Justin Nowakowski, SERC conservation biologist and lead author of the study. “It provides food, fuel, fiber and other ecosystem services that we depend on for life.”</p>



<h2 class="wp-block-heading" id="h-how-the-study-was-conducted">How the study was conducted</h2>



<p>The study involved meticulous data collection for over 1,000 species from every continent, excluding Antarctica, leveraging data from the Living Planet and BioTIME databases. </p>



<p>Nowakowski’s team studied 2,239 vertebrate populations, comparing the states of species within and outside <a href="https://www.earth.com/news/national-parks-enrich-mammal-diversity-beyond-the-boundaries-of-protected-areas/" target="_blank" rel="noreferrer noopener">protected areas</a>. The research revealed that vertebrates inside protected areas are declining at a rate of 0.4% per year, nearly five times more slowly than those in unprotected areas (1.8% per year).</p>



<h2 class="wp-block-heading" id="h-the-significance-of-protected-lands">The significance of protected lands</h2>



<p>Protected areas offer a refuge where biodiversity is closer to stability. “They buy us much-needed time to figure out how to reverse the biodiversity crisis,” stated Luke Frishkoff, coauthor and assistant professor of biology at the University of Texas at Arlington. </p>



<p>Frishkoff further noted that populations outside <a href="https://www.earth.com/news/protected-areas-provide-a-thermal-buffer-against-climate-change/" target="_blank" rel="noreferrer noopener">protected areas</a> could halve in 40 years, while those inside would take 170 years to face a similar fate.</p>



<h2 class="wp-block-heading" id="h-impact-on-different-species">Impact on different species</h2>



<p>The study found that certain vertebrate classes, notably amphibians and birds, benefitted more within protected lands. This is likely due to the severe threats they face outside, including habitat loss, climate change, and diseases like the chytrid fungus affecting amphibians. </p>



<p>“Amphibians typically have fairly small home ranges, and they’re also really sensitive to small changes in the environment,” said Jessica Deichmann, coauthor and ecologist with the Liz Claiborne &amp; Art Ortenberg Foundation.</p>



<h2 class="wp-block-heading" id="h-challenges-and-external-factors">Challenges and external factors</h2>



<p>However, the conversion of nearby land for agriculture and development along with climate change continue to undermine the efficacy of protected areas. The research team made sure to highlight the urgent need for interconnected protected zones and adaptive strategies that align with the ecological fluidity, as species are constantly moving.</p>



<p>The findings also reaffirm the UN’s commitment made last December, where nearly 200 nations pledged to protect 30% of Earth’s land and water by 2030. This ambitious roadmap is called the <a href="https://www.un.org/sustainabledevelopment/blog/2021/07/a-new-global-framework-for-managing-nature-through-2030-1st-detailed-draft-agreement-debuts/" target="_blank" rel="noreferrer noopener">"30 by 30" initiative</a>. </p>



<p>While this commitment has fueled a surge in establishing protected lands, the study cautions against mere compliance through ‘paper parks’ and emphasizes actual biodiversity conservation within these regions.</p>



<p>In addition, effective governance emerged as a crucial factor in successful conservation efforts. Nations with transparent and corruption-free governments are often more efficient in enforcing environmental laws, managing conservation funds and involving local communities in conservation laws.</p>



<h2 class="wp-block-heading" id="h-beyond-protected-lands">Beyond protected lands</h2>



<p>Conservation experts are advocating for diverse strategies to conserve biodiversity. Examples include “payment for ecosystem services” programs, such as the one in Costa Rica, which incentivizes landowners to preserve forests. These innovative models, along with biological corridors and Indigenous-led protected areas, offer flexible and effective alternatives to traditional conservation approaches.</p>



<p>In summary, the study by SERC and Conservation International illustrates the pivotal role of protected areas in biodiversity conservation, but also emphasizes the necessity for comprehensive strategies that encompass effective governance, community involvement, and innovative conservation models. </p>



<p>By adopting such holistic approaches, humanity can hope to curb the ongoing biodiversity crisis and ensure the survival and thriving of myriad species on Earth.</p>



<p>The full study was published in the <a href="https://www.nature.com/articles/s41586-023-06562-y" target="_blank" rel="noreferrer noopener">journal Nature</a>.</p>



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Georissa luchana

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