Caucaia do Alto (pitfall traps)
Basic information
Sample name: Caucaia do Alto (pitfall traps)
Reference: F. Umetsu, L. Naxara, and R. Pardini. 2006. Evaluating the efficiency of pitfall traps for sampling small mammals in the Neotropics. Journal of Mammalogy 87(4):757-765 [ER 850]
Geography
Country: Brazil
State: São Paulo
Coordinate: 24° 44' S, 47° 3' W
Latlng basis: estimated from map
Geography comments: five sites were in the Morro Grande Reserve and the others were to the west
altitude 850 to 1100 m
altitude 850 to 1100 m
Environment
Habitat: tropical/subtropical dry broadleaf forest
Substrate: ground surface
MAT: 19.0
MAP: 1350.0
Habitat comments: "a transition between the coastal Atlantic rain forest and the Atlantic semideciduous forest, classified as 'Lower Montane Atlantic Rain Forest'"; 23 of 26 sites were in "secondary forest from 50 to 80 years old"
mean max/min 27/11
rainfall 1300 to 1400 mm and is "seasonably variable"
mean max/min 27/11
rainfall 1300 to 1400 mm and is "seasonably variable"
Methods
Life forms: rodents, other small mammals
Sites: 26
Sampling methods: drift fences, pitfall traps
Sample size: 1420 individuals
Years: 2002 - 2005
Days: 74
Nets or traps: 11
Net or trap nights: 462
Basal area status: not applicable
Sampling comments: at each of the 26 sites there was "a 100-m sequence of 11 pitfall traps... connected by a 500-mm-tall plastic drift fence"; pitfall trap sessions totalled 74 days and 462 trap nights
Metadata
Sample no: 1202
Contributor no: John Alroy
Enterer: John Alroy
Created: 2015-02-14 19:54:52
Modified: 2015-02-14 08:57:12
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
28 species
2 singletons
total count 1420
geometric series index: 37.5
Fisher's α: 4.944
geometric series k: 0.8101
Hurlbert's PIE: 0.8805
Shannon's H: 2.4161
Good's u: 0.9986
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