De Long Mountains (riparian grass-willow)
Basic information
Sample name: De Long Mountains (riparian grass-willow)

Reference: R. J. Douglass. 1984. Ecological distribution of small mammals in the De Long Mountains of northwestern Alaska. Arctic 37(2):148-154 [ER 1588]
Country: United States
State: Alaska

Coordinate: 68° 7' N, 163° 30' W
Basis of coordinate: stated in text
Geography comments: "160 km north of Kotzebue... approximately 58 km inland from the Chukchi Sea"
Climate and habitat
Habitat: boreal forest/taiga
Substrate: ground surface
WMT: 20.0
CMT: -47.0
MAP: 300.0
Habitat comments: "dominated by cottongrass (Eriophorum sp.) and other sedges (Carex spp.), dwarf birches (Betula spp.), and willows (Salix spp.). Tall stands of riparian willows occur along most drainages"
climate data are for the Asik watershed within the Noatak National Preserve and are from Stottlemyer et al. (2000, USGS Prof Paper 1662)
Life forms: rodents, other small mammals
Site area: 0.760
Sampling methods: quadrat, baited, Sherman traps
Sample size: 96
Years: 1978, 1979
Days: 18
Nets or traps: 100
Net or trap nights: 1800
Sampling comments: "100 stations of one trap each... Grids were four columns wide by 25 columns long and encompassed areas of 0.76 ha... Columns on all grids were 15 m apart and rows were 7 m apart. Grids were sampled for three consecutive days each during June, July, and August 1978 and 1979. Sherman live-traps (23 x 8 x 9 cm) were covered with plywood, baited with rolled oats and peanut butter, and checked once daily""
Sample: 1817
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-12-11 12:53:24
Modified: 2015-12-11 12:54:08
Abundance distribution
7 species
1 singleton
total count 96
standardised richness: not computable
Fisher's α: 1.737
geometric series k: 0.5705
Hurlbert's PIE: 0.7590
Shannon's H: 1.5852
Good's u: 0.9896