Grand Marais
Basic information
Sample name: Grand Marais

Reference: R. M. Timm. 1974. Rediscovery of the rock vole (Microtus chrotorrhinus) in Minnesota. Canadian Field-Naturalist 88:82- [ER 1672]
Geography
Country: United States

State: Minnesota

County: Cook

Coordinate: 48° 0' N, 90° 21' W
Latlng basis: stated in text

Geography comments: "17 mi N, 1 mi W Grand Marais, NW Va sec 29, T 64 N, R 1 E, elevation 1758 feet"

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Environment
Habitat: temperate broadleaf/mixed forest

Substrate: ground surface

WMT: 15.8

CMT: -11.4

MAP: 622.0

Habitat comments: "in association with a long narrow bed of boulders deposited by the Rainey Lobe of Wisconsin glaciation" with surrounding vegetation including Abies, Picea, Thuja, Pinus, Populus, Betula, Acer, Rosa, and Vaccinium
climate data are for Isle Royale National Park and are from Scott and Binkley (1997, Oecologia)

Methods
Life forms: rodents, other small mammals

Sampling methods: no design, baited, snap traps

Sample size: 22 individuals

Years: 1973

Days: 3

Seasons: summer

Nets or traps: 167

Net or trap nights: 501

Basal area status: not applicable

Sampling comments: "Museum Special snap-traps baited with a mixture of peanut butter and rolled oats... 167 traps" were "set in this area for 3 days"

Metadata
Sample no: 1860

Contributor no: John Alroy

Enterer: John Alroy

Created: 2015-12-27 09:31:09

Modified: 2015-12-26 22:31:09

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
8 species
2 singletons
total count 22
geometric series index: 17.0
Fisher's α: 4.523
geometric series k: 0.7573
Hurlbert's PIE: 0.8095
Shannon's H: 1.881
Good's u: 0.9205
Register
Microtus chrotorrhinus 233.0 g
Sorex arcticus 18.1 g
Sorex cinereus 24.1 g
Blarina brevicauda 415.1 g
Neotamias minimus 3
"Eutamias minimus"
Peromyscus maniculatus 219.1 g
Myodes gapperi 7
"Clethrionomys gapperi"
Napaeozapus insignis 122.7 g