El Castillo (border zone)
Basic information
Sample name: El Castillo (border zone)

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

Substrate: ground surface

Disturbance: grazing

MAT: 27.0

MAP: 1745.0

Habitat comments: "between the Tropical moist forest and premontane moist forest life zones" and specifically on the border between primary forest and grassland (meaning 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: 59 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: 2357

Contributor: John Alroy

Enterer: John Alroy

Created: 2016-10-29 20:52:57

Modified: 2016-12-13 00:00:10

Abundance distribution
22 species
9 singletons
total count 59
geometric series index: 56.8
Fisher's α: 12.720
geometric series k: 0.8921
Hurlbert's PIE: 0.9161
Shannon's H: 2.7825
Good's u: 0.8503
Each square represents a species. Square sizes are proportional to counts.
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