Buena Vista Lake Ornate Shrew (Sorex ornatus relictus)
Where Listed: WHEREVER FOUND
The Buena Vista Lake shrew (Sorex ornatus relictus) is one of nine subspecies of ornate shrew (Sorex ornatus) known to occur in California. Ornate shrews are primarily insectivorous (insect-eating) mammals that are the approximate size of a mouse. Shrews make up the family Soricidae. Shrews have a long snout, tiny bead-like eyes, ears that are concealed, or nearly concealed, by soft fur, and five toes on each foot. They are active day or night. When they are not sleeping, they are searching for food, namely insects and other small invertebrates. Shrews eat more than their own weight each day to avoid starvation and maintain their body weight at high rates of metabolism. The specific feeding and foraging habits of the Buena Vista Lake shrew are unknown. The Buena Vista Lake shrew's back is predominantly black with a buffy-brown speckling pattern, its sides are more buffy-brown than the upper surface, and its underside is smoke-gray. The tail is faintly bicolor and blackens toward the end both above and below. The Buena Vista Lake shrew grows to around 4 inches in total length, including a tail of about 1.5 inch. Adults weigh 0.14-0.27 ounce.
- States/US Territories in which the Buena Vista Lake Ornate Shrew, Wherever found is known to or is believed to occur: California
- US Counties in which the Buena Vista Lake Ornate Shrew, Wherever found is known to or is believed to occur: View All
- USFWS Refuges in which the Buena Vista Lake Ornate Shrew, Wherever found is known to occur:
Kern National Wildlife Refuge
- Additional species information
|Status||Date Listed||Lead Region||Where Listed|
|2002-03-06||California/Nevada Region (Region 8)||Wherever found|
» Federal Register Documents
|Date||Title||Plan Action Status||Plan Status|
|1998-09-30||Recovery Plan for Upland Species of the San Joaquin Valley, California||View Implementation Progress||Final|
|Date||Citation Page||Title||Document Type|
|2010-05-21||75 FR 28636 28642||Initiation of 5-Year Reviews of 34 Species in California and Nevada; Availability of 96 Completed 5-Year Reviews in California and Nevada||
|2012-04-27||77 FR 25112 25116||5-Year Reviews of Species in California and Nevada||
|2011-09-08||Buena Vista Lake Ornate Shrew (Sorex ornatus relictus) 5-Year Review|
» Critical Habitat
|Date||Citation Page||Title||Document Type||Status|
|2013-07-02||78 FR 39835 39867||Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Buena Vista Lake Shrew: Final Rule.||Final Rule||Final designated|
|2012-07-10||77 FR 40705 40733||Designation of Critical Habitat for Buena Vista Lake Shrew; Proposed Rule||Proposed Rule||Not Required|
|2009-10-21||74 FR 53999 54017||Designation of Critical Habitat for the Buena Vista Lake shrew: Proposed rule.||Proposed Rule||Not Required|
|2005-01-24||70 FR 3438 3461||Endangered and Threatened Wildlife and Plants; Final Rule to Designate Critical Habitat for the Buena Vista Lake shrew (Sorex ornatus relictus)||Final Rule||Not Required|
|2004-08-19||69 FR 51417 51442||Endangered and Threatened Wildlife and Plants; Proposed Designation of Critical Habitat for the Buena Vista Lake Shrew||Proposed Rule||Not Required|
To learn more about critical habitat please see http://ecos.fws.gov/crithab
» Conservation Plans
|HCP Plan Summaries|
|Kern Water Bank|
|PG&E San Joaquin Valley Operations & Maintenance HCP|
» Life History
No Life History information has been entered into this system for this species.
» Other Resources
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 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.