PPBio-Amazônia (100 L buckets, I-shaped arrays)
Basic information
Sample name: PPBio-Amazônia (100 L buckets, I-shaped arrays)
Sample aka: Floresta Nacional de Caxiuanã

Reference: M. A. Ribeiro-Júnior, R. V. Rossi, C. L. Miranda, and T. C. S. Avila-Pires. 2011. Influence of pitfall trap size and design on herpetofauna and small mammal studies in a Neotropical Forest. Zoologia (Curitiba) 28(1):80-91 [ER 1584]
Country: Brazil
State: Pará

Coordinate: 1° 57' 36" S, 51° 36' 55" W
Basis of coordinate: stated in text
Geography comments: "the 2, 500 ha site of the Amazonia Biodiversity Research Program/PPBio-Amazônia, in Floresta Nacional de Caxiuanã... an area of 330, 000 ha in the Tocantins-Xingu interfluvium"
Habitat: tropical/subtropical moist broadleaf forest
Protection: national/state forest
Substrate: ground surface
MAT: 26.7
MAP: 1960.0
Habitat comments: "About 85% of the area is terra firme rain forest... The remaining area is igapó (flooded forest). The forest is characterized by a 30-35 m-tall closed canopy, with emergents growing to 45 m... The climate is of the Am type in the classification of Köppen... divided into a rainy season, from December to May, and a dry season, from June to November"
Life forms: rodents, other small mammals, lizards, snakes, frogs
Sampling methods: line transect, drift fences, pitfall traps
Sample size: 399
Years: 2007
Days: 67
Nets or traps: 12
Net or trap nights: 804
Sampling comments: "The 100 L buckets were 820 mm deep" and there were four buckets each in three line arrays; "Buckets belonging to the same pitfall array were connected by a 10 m- long and 80 cm-high plastic drift fence. Pitfall arrays were set 150 m from one another along a transect... Each pitfall array was sampled for a total of 15 consecutive days in January-February, 17 consecutive days in March-April, 18 consecutive days in June-July, and 17 consecutive days in November"
Sample: 1816
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-12-10 21:02:34
Modified: 2018-06-30 20:58:32
Abundance distribution
43 species
10 singletons
total count 399
extrapolated richness: 57.2
Fisher's α: 12.233
geometric series k: 0.9032
Hurlbert's PIE: 0.9299
Shannon's H: 3.1185
Good's u: 0.9750
Each square represents a species. Square sizes are proportional to counts.