Ecological Station of Itirapina
Basic information
Sample name: Ecological Station of Itirapina
Reference: A. A. Bueno and J. C. Motta-Junior. 2008. Small mammal prey selection by two owl species in southeastern Brazil. Journal of Raptor Research 42(4):248-255 [ER 1307]
Geography
Country: Brazil
State: Säo Paulo
Coordinate: 22° 15' S, 47° 49' W
Coordinate basis: stated in text
Environment
Habitat: tropical/subtropical savanna
Substrate: ground surface
MAT: 21.8
MAP: 1360.0
Habitat comments: "a 2300-ha reserve... dominated by cerrado (savannah-like vegetation)... humid subtropical, with a mild dry winter and hot summer (Köppen 1948), and distinct wet (October–March) and dry (April–September) seasons"
climate data are for the station and are from Christianini and Oliveira (2013, Arthropod-Plant Interactions)
climate data are for the station and are from Christianini and Oliveira (2013, Arthropod-Plant Interactions)
Methods
Life forms: rodents,other small mammals
Sampling methods: line transect,pitfall traps
Sample size: 434 individuals
Years: 2001, 2002
Days: 36
Nets or traps: 72
Net or trap nights: 2592
Sampling comments: "Nine arrays of pitfall traps were installed... An array consisted of two lines with four buckets (100 l) each, 15 m apart, and connected by a plastic drift-fence (45 m longand 0.5 m high). Pitfall lines were 100 m apart. The 18 lines with a total of 72 buckets were checked on 3 d/mo, resulting in 2592 trap-nights"
Metadata
Sample number: 1797
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-10-30 15:08:01
Modified: 2015-12-02 10:13:49
Abundance distribution
7 species
3 singletons
total count 434
extrapolated richness: 13.8
Fisher's α: 1.185
geometric series k: 0.3721
Hurlbert's PIE: 0.2341
Shannon's H: 0.5084
Good's u: 0.9931
Each square represents a species. Square sizes are proportional to counts.
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Register
| Calomys tener | 377 | 10.6 g |
| Oligoryzomys nigripes | 41 | 17.7 g herbivore |
| Clyomys laticeps | 10 | |
| "C. bishopi" (see Bezerra and de Oliveira 2010) | ||
| Necromys lasiurus | 3 | 44.4 g herbivore-invertivore |
| Monodelphis kunsi | 1 | 10.4 g |
| Cryptonanus sp. | 1 | |
| Gracilinanus microtarsus | 1 | 33.4 g |