Karrak Lake
Basic information
Sample name: Karrak Lake
Sample aka: Queen Maud Gulf Bird Sanctuary
Reference: G. Samelius and R. T. Alisauskas. 2009. Habitat alteration by geese at a large arctic goose colony: consequences for lemmings and voles. Canadian Journal of Zoology 87:95-101 [ER 3249]
Geography
Country: Canada
State: Nunavut
Coordinate: 67° 14' N, 100° 15' W
Coordinate basis: stated in text
Geography comments: "at Karrak Lake... and surrounding areas in the Queen Maud Gulf Bird Sanctuary"
Environment
Habitat: tundra
Protection: unprotected
Substrate: ground surface
Habitat comments: "gently rolling tundra"
Methods
Life forms: rodents
Sites: 4
Sampling methods: line transect,baited,snap traps
Sample size: 41 individuals
Years: 2000 - 2004
Days: 10
Seasons: summer
Nets or traps: 300
Net or trap nights: 3000
Sampling comments: sampling was "from July 2000 to July 2004... in two 1 km x 1 km study areas in the goose colony at Karrak Lake and in two 1 km x 1 km study areas outside the colony" and sampling was only in "early to mid-July" each year
there were "three traplines" in each area and "Each trapline consisted of 25 trap-stations, spaced 10 m apart, and with one snap-trap within 1 m of each trap station... Traplines were set for two consecutive nights" and "baited with a mixture of peanut butter and rolled oats"; there was a total of "2744.5 trap-nights" because the authors "subtracted 0.5 trap-nights for each trap that was snapped without capture", so the actual total seems to have been 10 x 300 = 3000 trap-nights
there were "three traplines" in each area and "Each trapline consisted of 25 trap-stations, spaced 10 m apart, and with one snap-trap within 1 m of each trap station... Traplines were set for two consecutive nights" and "baited with a mixture of peanut butter and rolled oats"; there was a total of "2744.5 trap-nights" because the authors "subtracted 0.5 trap-nights for each trap that was snapped without capture", so the actual total seems to have been 10 x 300 = 3000 trap-nights
Metadata
Sample number: 3579
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-12-25 12:56:16
Modified: 2019-12-25 01:56:16
Abundance distribution
3 species
0 singletons
total count 41
geometric series index: 3.5
Fisher's α: 0.745
geometric series k: 0.3612
Hurlbert's PIE: 0.5348
Shannon's H: 0.8835
Good's u: 1.0000
Each square represents a species. Square sizes are proportional to counts.
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Register
Myodes rutilus | 23 | 19.5 g |
"Clethrionomys rutilus" | ||
Dicrostonyx torquatus | 15 | 52.0 g |
Lemmus sibiricus | 3 | 46.3 g |