H. J. Andrews Experimental Forest
Basic information
Sample name: H. J. Andrews Experimental Forest

Reference: R. B. Bury and P. S. Corn. 1987. Evaluation of pitfall trapping in northwestern forests: trap arrays with drift fences. Journal of Wildlife Management 51(1):112-119 [ER 978]
Country: United States
State: Oregon

Coordinate: 42° 13' N, 122° 15' W
Basis of coordinate: based on nearby landmark
Geography comments: "on or near the H. J. Andrews Experimental Forest" (straddling the border between Lane and Linn counties) (coordinate based on the forest)
Climate and habitat
Habitat: temperate broadleaf/mixed forest
Substrate: ground surface
MAT: 8.5
WMT: 17.8
CMT: 0.6
MAP: 2300.0
Habitat comments: none given
climate data are for the H. J. Andrews Experimental Forest and are from Jonsson (1999, Bryologist)
Life forms: rodents, other small mammals
Sites: 18
Sampling methods: no design, drift fences, pitfall traps
Sample size: 1971
Years: 1983
Days: 180
Nets or traps: 216
Net or trap nights: 38880
Sampling comments: each array "consisted of 2 triads spaced about 25 m apart. Each triad contained 3 5-m-long drift fences" connecting two pitfall traps and one array was in each of 18 stands
reported trap night total doesn't square with the reported number of traps and nights, so the product of the latter is used instead
Sample: 1466
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-03-03 12:55:08
Modified: 2015-12-01 20:54:00
Abundance distribution
11 species
0 singletons
total count 1971
standardised richness: 11.0
Fisher's α: 1.537
geometric series k: 0.6610
Hurlbert's PIE: 0.6703
Shannon's H: 1.6013
Good's u: 1.0000