Biodiversity Analysis of Vegetation on the Nevada Test Site Page: 1 of 20
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Biodiversity Analysis of Vegetation on the Nevada Test Site
W. K. Ostler and D. J. Hansen
The Nevada Test Site (NTS) located in south central Nevada encompasses approximately
3,561 square kilometers and straddles two major North American deserts, Mojave and Great Basin.
Transitional areas between the two desert types have been created by gradients in elevation,
precipitation, temperature, and soils. From 1996-1998, more than 1,500 ecological landform units were
sampled at the NTS for numerous biotic and abiotic parameters. These data provide a basis for spatial
evaluations of biodiversity over landscape scales at the NTS. Species diversity maps (species richness
vs. species abundance) have been produced. Differences in ecosystem diversity at the ecoregion,
alliance, association, and ecological landform unit levels are presented. Spatial distribution maps of
species presence and abundance provide evidence of where transition zones occur and the resulting
impact on biodiversity. The influences of abiotic factors (elevation, soil, precipitation) and anthropogenic
disturbance on biodiversity are assessed.
In: McArthur, E. Durant; Fairbanks, Daniel J., comps. 2000. Proceedings: Shrubland Ecosystem
Genetics and Biodiversity; 2000 June 13-15; Provo, UT. Proceedings RMRS-P-000. Ogden, UT:
U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station.
W. K. Ostler and D. J. Hansen are biologists at Bechtel Nevada, MS NLV081, PO Box 98521, Las
Vegas, NV 89193-8521.
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Ostler, W. K. & Hansen, D. J. Biodiversity Analysis of Vegetation on the Nevada Test Site, article, June 1, 2001; Nevada. (digital.library.unt.edu/ark:/67531/metadc739605/m1/1/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.