Castelo do Piauí
Basic information
Sample name: Castelo do Piauí

Reference: F. S. Rodrigues and A. L. C. Prudente. 2011. The snake assemblage (Squamata: Serpentes) of a Cerrado-Caatinga transition area in Castelo do Piauí, state of Piauí, Brazil. Zoologia (Curitiba) 28(4):440-448 [ER 1150]
Country: Brazil
State: Piauí

Coordinate: 5° 19' 20" S, 41° 33' 9" W
Basis of coordinate: stated in text
Geography comments: "in the Municipality of Castelo do Piauí"
Habitat: tropical/subtropical savanna
Substrate: ground surface
MAT: 33.6
WMT: 35.0
CMT: 21.8
MAP: 1199.0
Habitat comments: "a transition area between the Caatinga and Cerrado, with a pre- dominance of a low altitude Cerrado Rupestre (rocky grasslands)... dry sub-humid" and specifically "low altitude Cerrado Rupestre... Campo Cerrado (open Cerrado)" and "secondary forest of typical Cerrado"
Life forms: snakes
Sampling methods: no design, drift fences, pitfall traps, hand capture
Sample size: 77
Years: 2005, 2006
Days: 77
Seasons: dry, wet or monsoon
Nets or traps: 84
Net or trap nights: 6468
Sampling comments: "a) time constrained search... 2) pitfall traps with drift fences... and 3) incidental encounters... Seven sets of traps were installed in each of the three areas. Each set contained four 60 L buckets, arranged in a “Y” configuration, 10 m apart from one another and connected by 100 cm high drift-fences... the traps remained open during 77 days, spread over four expeditions, two in the dry season and two in the rainy season... Time constrained search... was performed for 38 days in each of the three areas"
Sample: 1676
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-07-05 09:39:42
Modified: 2020-05-29 20:27:43
Abundance distribution
19 species
5 singletons
total count 77
extrapolated richness: 27.2
Fisher's α: 8.065
geometric series k: 0.8799
Hurlbert's PIE: 0.9188
Shannon's H: 2.6863
Good's u: 0.9361
Each square represents a species. Square sizes are proportional to counts.