Maidenhair Spleeenwort – Asplenium trichomanes

by | Dec 9, 2023 | Ferns, NE Native Ferns

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Townsend's ground squirrel (Urocitellus townsendii) is a rare species of rodent in the family Sciuridae. It is |endemic to Washington in the United States.[1]

Distribution and habitat

Townsend's ground squirrel is found only in Washington in the United States. It occurs in the Yakima River Valley, west of the Yakima River, and in the Horse Heaven Hills to the south.[1][2]

Less than 10% of the native habitat of the Townsend's ground squirrel remains. Its native habitat was shrubsteppe, grasslands, and sagebrush at the edges of forest.[3] It now also occurs in habitats modified by humans, such as orchards, pastures, and abandoned fields.[4]

Conservation

Colonies of Townsend's ground squirrel are fragmented and isolated.[1] In 2022, the Bureau of Land Management had 16 unique records of occurrence.[4] In 2012, there were 8 colonies recorded for the Hanford Reach National Monument.[4][5][6] As of 2024, there are 29 research grade observations in iNaturalist.[7]

References

  1. ^ a b c d NatureServe. (2016). Urocitellus townsendii (errata version published in 2017). The IUCN Red List of Threatened Species. doi:10.2305/IUCN.UK.2016-3.RLTS.T20476A22266682.en
  2. ^ Hafner, D.J., Yensen, E. and Kirkland, G.L., Jr. 1998. Status survey and conservation action plan - North American Rodents. IUCN/SSC Rodent Specialist Group, Gland, Switzerland.
  3. ^ Sato, C. 2012. Appendix A.5 Washington Connected Landscapes Project: Analysis of the Columbia Plateau Ecoregion. A.5-3-A.5-24.
  4. ^ a b c "Urocitellus townsendii". explorer.natureserve.org. NatureServe. Retrieved 27 June 2024.
  5. ^ Lindsey, C., J. Wilde, and J. Nugent. 2012. Ground Squirrel Monitoring Report for Calendar Year 2012. Prepared for the U.S. Department of Energy Assistant Secretary for Environmental Management. HNF-53075. 15 pp.
  6. ^ "Institute for Natural Resources, Oregon State University". Institute for Natural Resources. 11 May 2023. Retrieved 27 June 2024.
  7. ^ "Observations". iNaturalist. Retrieved 27 June 2024.
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