Las Chinchillas Natural Reserve (equatorial-facing slopes, spring 1987)
Basic information
Sample name: Las Chinchillas Natural Reserve (equatorial-facing slopes, spring 1987)
Reference: J. E. Jiménez, P. Feinsinger, and F. M. Jaksic. 1992. Temporal patterns of an irruption and decline of small mammals in northcentral Chile. Journal of Mammalogy 73(2):356-364 [ER 2525]
Geography
Country: Chile
Coordinate: 31° 30' S, 71° 6' W
Coordinate basis: stated in text
Geography comments: one site each in the El Grillo and El Cobre ravines, which are "2 km apart"
"Elevations range from 400 to 1,700 m"
"Elevations range from 400 to 1,700 m"
Environment
Habitat: desert/xeric shrubland
Protection: nature reserve
Substrate: ground surface
MAT: 16.0
MAP: 206.0
Habitat comments: "The climate is semi-arid, with sparse rainfall concentrated in austral winter months (June-August)... The vegetation is a thorn-srub"
MAP and MAT are for the Las Chinchillas Natural Reserve and is based on
MAP and MAT are for the Las Chinchillas Natural Reserve and is based on
Methods
Life forms: rodents,other small mammals
Sampling methods: quadrat,Sherman traps,Tomahawk traps
Sample size: 263 individuals
Years: 1987
Days: 15
Seasons: spring
Nets or traps: 196
Sampling comments: "Each 7 by 7 trapping grid had stations separated by 15 m, thus covering an area of 105 by 105 m (including a boundary strip of 7.5 m), or 1.1 ha. Grids were equipped with... one Sherman and one Tomahawk-like trap"
trapping was "for 5 consecutive nights" each month from September through NOvember
"traps were baited with rolled oats"
Chinchilla lanigera was entirey trapped with Tomahawks and all other rodents with Shermans
trapping was "for 5 consecutive nights" each month from September through NOvember
"traps were baited with rolled oats"
Chinchilla lanigera was entirey trapped with Tomahawks and all other rodents with Shermans
Metadata
Sample number: 2839
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-12-01 21:38:44
Modified: 2017-12-01 10:40:20
Abundance distribution
8 species
1 singleton
total count 263
extrapolated richness: 10.4
Fisher's α: 1.558
geometric series k: 0.4744
Hurlbert's PIE: 0.4824
Shannon's H: 1.0854
Good's u: 0.9962
Each square represents a species. Square sizes are proportional to counts.
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Register
| Abrocoma bennettii | 5 | 201 g |
| Abrothrix longipilis | 3 | 37.8 g |
| "Akodon longipilis" | ||
| Abrothrix olivaceus | 24 | 26.2 g |
| "Akodon olivaceus" | ||
| Chinchilla lanigera | 11 | 365 g |
| Thylamys elegans | 9 | 31.1 g |
| "Marmosa elegans" | ||
| Octodon degus | 25 | 185 g |
| Oryzomys longicaudatus | 1 | 28.5 g |
| Phyllotis darwini | 185 | 47.3 g |
Current reference:
Herzog et al. 2003 (ER 1261)