General Carrera Lake (shrub-pasture)
Basic information
Sample name: General Carrera Lake (shrub-pasture)

Reference: R. A. Figueroa Rojas, E. S. Corales Stappung, and O. S. Alvarado. 2003. Diet of the Red-backed Hawk (Buteo polyosoma) in a forested area of the Chilean Patagonia and its relation to the abundance of rodent prey. Hornero 18(1):43-52 [ER 1339]
Geography
Country: Chile

Coordinate: 47° 37' S, 73° 34' W
Latlng basis: stated in text

Geography comments: "on the north-western edge of General Carrera Lake, near Puerto Tranquilo village... in Aysén"
slopes and pastures are between 500 and 1000 m

Environment
Habitat: temperate broadleaf/mixed forest

Altered habitat: pasture

Substrate: ground surface

MAT: 6.5

MAP: 1000.0

Habitat comments: "The lower slopes and the valleys are composed of wide pastures with scattered old trees, small meadows, and small patches and peninsulas of evergreen forest in varying degrees of degradation"
climate data are for Tranquilo and are from Piper et al. (2014, Am J Bot)

Methods
Life forms: rodents

Sampling methods: quadrat, Sherman traps

Sample size: 229 individuals

Years: 1999, 2000

Days: 8

Nets or traps: 50

Net or trap nights: 400

Basal area status: not applicable

Sampling comments: "A trapping grid was established for each site using medium Sherman live-traps. Traps were active for one night for each season (seasonal effort = 200 traps-night, total effort = 1200 traps-night)" across three sites including this one

Metadata
Sample no: 1800

Contributor no: John Alroy

Enterer: John Alroy

Created: 2015-11-01 17:31:26

Modified: 2015-12-02 10:27:27

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
5 species
2 singletons
total count 229
geometric series index: 8.6
Fisher's α: 0.902
geometric series k: 0.2742
Hurlbert's PIE: 0.3722
Shannon's H: 0.7122
Good's u: 0.9913
Register
Abrothrix longipilis (long-haired grass mouse)35
Abrothrix olivaceus (olive grass mouse)1
Chelemys macronyx 168.3 g
Loxodontomys micropus 15
Oligoryzomys longicaudatus (long-tailed pygmy rice rat)17728.5 g