Ovis canadensis sierrae - Earth.com
ovis canadensis sierrae
12-22-2016

Ovis canadensis sierrae

Ovis canadensis sierrae 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 — Ovis canadensis sierrae 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. Sierra bighorn range in color from white to dark brown, with a white rump and dark tail. There is some seasonal change in coloration due to the shedding of a thicker winter layer. Specialized hooves with adhesive soles provide traction in steep rocky terrain. Female bighorn (ewes) can weigh up to 70 kilograms (155 lb) and have shorter, narrow horns, while male bighorn (rams) can weigh as much as 100 kilograms (220 lb) and have massive, curving horns. The horns of both rams and ewes are composed of a dense layer of keratin covering a core of bone.

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 Sierra Nevada bighorn sheep (Ovis canadensis sierrae) is subspecies of bighorn sheep unique to the Sierra Nevada mountains of California. A 2016 genetics study confirmed significant divergence between the three subspecies of North America’s bighorn sheep: Sierra Nevada bighorn sheep, Rocky Mountain bighorn sheep and desert bighorn sheep. Sierra Nevada bighorn sheep were listed as a federally endangered subspecies in 2000. As of 2016, over 600 Sierra bighorn remain in the wild.

Detailed information
Full Name: Sierra Nevada bighorn sheep (Ovis canadensis ssp. sierrae)
Where found: U.S.A. (CA) Sierra Nevada
Critical Habitat:N/A
Species Group:Mammals
Current listing status
Status Date Listed Lead Region Where Listed
Endangered 04/20/1999 California/Nevada Region (Region 8) U.S.A. (CA) Sierra Nevada
  • States/US Territories in which the Sierra Nevada bighorn sheep, Sierra Nevada is known to or is believed to occur: California
  • US Counties in which the Sierra Nevada bighorn sheep, Sierra Nevada is known to or is believed to occur: View All
Federal register documents
Recovery
To learn more about critical habitat please see http://ecos.fws.gov/crithab
Date
Title
Plan Action Status
Plan Status
09/24/2007 Final Recovery Plan for the Sierra Nevada Bighorn Sheep (Ovis canadensis californiana) View Implementation Progress Final
Date
Title
Plan Action Status
Plan Status
09/24/2007 Final Recovery Plan for the Sierra Nevada Bighorn Sheep (Ovis canadensis californiana) View Implementation Progress Final
Date
Citation Page
Title
Document Type
04/27/2012 77 FR 25112 25116 5-Year Reviews of Species in California and Nevada
  • Notice 5-year Review, Initiation
03/25/2009 74 FR 12878 12883 Initiation of 5-Year Reviews of 58 Species in California, Nevada, Arizona, and Utah; Availability of Completed 5-Year Reviews in California and Nevada
  • Notice 5-year Review, Completion
02/13/2008 73 FR 8345 8346 Recovery Plan for the Sierra Nevada Bighorn Sheep (Ovis canadensis californiana)
  • Notice Final Recovery Plan Availability
02/14/2007 72 FR 7064 7084 Initiation of 5-Year Reviews of 58 Species in California and Nevada; Availability of Completed 5-Year Reviews in California and Nevada
  • Notice 5-year Review, Initiation
07/30/2003 68 FR 44808 44808 Draft Recovery Plan for the Sierra Nevada Bighorn Sheep
  • Notice Draft Recovery Plan Availability
Date
Title
09/30/2008 Sierra Nevada Bighorn Sheep 5-Year Review
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