Elkol-Sorenson Mine (1981)
Basic information
Sample name: Elkol-Sorenson Mine (1981)

Reference: R. R. Parmenter and J. A. MacMahon. 1983. Factors determining the abundance and distribution of rodents in a shrub-steppe ecosystem: the role of shrubs. Oecologia 59(2/3):145-156 [ER 979]
Geography
Country: United States

State: Wyoming


Coordinate: 41° 43' N, 110° 37' W
Coordinate basis: stated in text

Geography comments: "8 km southwest of Kemmerer"

Environment
Habitat: desert/xeric shrubland

Substrate: ground surface

WMT: 17.0

CMT: -8.0

MAP: 226.0

Habitat comments: "shrub-steppe" dominated by Artemisia and Chrysothamnus that was "not mined" and served as an experimental control

Methods
Life forms: rodents

Site area: 1.25

Sampling methods: quadrat,Sherman traps

Sample size: 136 individuals

Years: 1981

Days: 15

Nets or traps: 289

Net or trap nights: 6340

Sampling comments: "a 17 x 17 station trap grid with 7 m between traps. A Sherman live trap was located at each station. Trapping was conducted for 5 consecutive nights... in May, June, July, and August" plus "20 Sherman live traps" placed "randomly" on the plot and "opened for 3 consecutive nights following [each] grid trapping" (trap nights = 289 x 5 x 4 + 20 x 7 x 4 = 6340); baiting was with "peanut butter and rolled oats"

Metadata
Sample number: 1468

Contributor: John Alroy

Enterer: John Alroy

Created: 2015-03-03 14:19:10

Modified: 2015-03-03 03:19:10

Abundance distribution
5 species
1 singleton
total count 136
geometric series index: 8.0
Fisher's α: 1.020
geometric series k: 0.3162
Hurlbert's PIE: 0.4056
Shannon's H: 0.7418
Good's u: 0.9928
Each square represents a species. Square sizes are proportional to counts.
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