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: 42° 43' N, 111° 37' W
Latlng 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
Basal area status: not applicable
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 no: 1468
Contributor no: John Alroy
Enterer: John Alroy
Created: 2015-03-03 14:19:10
Modified: 2015-03-03 03:19:10
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
5 species
1 singleton
total count 136
geometric series index: 8.0
Fisher's α: 1.02
geometric series k: 0.3761
Hurlbert's PIE: 0.4056
Shannon's H: 0.7418
Good's u: 0.9928
Register
| Peromyscus maniculatus | 100 | 19.1 g |
| Neotamias minimus | 30 | |
| "Eutamias minimus" | ||
| Microtus montanus | 3 | 44.7 g |
| Onychomys leucogaster | 2 | 34.7 g |
| Urocitellus armatus | 1 | 317.0 g |
| "Spermophilus armatus" | ||