El Castillo (pasture)
Basic information
Sample name: El Castillo (pasture)

Reference: J. Herrera-Vâsquez, A. Zùñiga SaborĂ­o, and C. M. Porras Cruz. 2008. Butterflies diversity in a tropical rainforest gradient of Arenal, Costa Rica. Brenesia 70:61-64 [ER 2264]
Geography
Country: Costa Rica

State: Alajuela


Coordinate: 10° 24' 49" N, 84° 45' 30" W
Coordinate basis: stated in text as range

Geography comments: "in El Castillo, Peñas Blancas, San Ramón, Alajuela"

Environment
Habitat: tropical/subtropical moist broadleaf forest

Altered habitat: pasture

Substrate: ground surface

MAT: 27.0

MAP: 1745.0

Habitat comments: "between the Tropical moist forest and premontane moist forest life zones" and specifically "in a grassland zone" that is a pasture
climate data are for Peñas Blancas and are from Moya and Calvo-Alvarado (2012, Annals of Forest Science)

Methods
Life forms: butterflies

Sites: 1

Site length: 550

Site width: 15

Sampling methods: belt transect,butterfly nets

Sample size: 125 captures or sightings

Years: 2006, 2007

Sampling comments: "The investigation was conducted... during August 2006 - January 2007... There were selected three consecutive transects of 550 m long and 15 m wide each. The first transect was placed in a primary forest zone, the second one in a border zone (Taking 75 m in and 75 out of the border middle line) and the third one was located in a grassland zone. Two samples were taken one month apart. Butterflies were collected using hand nets... The sampling effort was of eight hours per habitat for a total of 42 hours by sampling month. Specimens were identified using a single code and released in the same capture place, only the rare species (when necessary) were preserved"

Metadata
Sample number: 2358

Contributor: John Alroy

Enterer: John Alroy

Created: 2016-10-29 20:57:56

Modified: 2016-12-13 00:00:23

Abundance distribution
10 species
4 singletons
total count 125
geometric series index: 20.4
Fisher's α: 2.558
geometric series k: 0.6407
Hurlbert's PIE: 0.6922
Shannon's H: 1.4566
Good's u: 0.9681
Each square represents a species. Square sizes are proportional to counts.
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