Three southwestern aquatic invertebrates.
These small aquatic animals have an exceedingly limited distribution and are imperiled by local and regional groundwater depletion, surface and groundwater contamination, oil and gas extraction activities within the supporting aquifer and watershed, and direct loss of their habitat (e.g., through burning or removing marsh vegetation, cementing, or filling of habitat).
Roswell springsnail, Koster's tryonia and Pecos assiminea are small aquatic snails, while the Noel's amphipod is a freshwater shrimp. The species coexist in small, geographically isolated springs at Bitter Lake National Wildlife Refuge in Chaves County in southeastern New Mexico. The Pecos assiminea snail also occurs at Diamond Y Springs in Pecos County and East Sandia Spring in Reeves County, on land managed by the Nature Conservancy of Texas.
|Printer friendly Cite/link Email Feedback|
|Title Annotation:||Proposed Listing Rules|
|Publication:||Endangered Species Update|
|Article Type:||Brief Article|
|Date:||May 1, 2003|
|Previous Article:||Slickspot peppergrass (Lepidium papilliferum).|
|Next Article:||Tumbling creek cavesnail (Antrobia culveri).|