Seed dissemination by frugivorous birds from forest fragments to adjacent pastures on the western slope of Volcßn Barva, Costa Rica
Rev. biol. trop
; 50(2): 569-575, Jun. 2002.
Artigo
em Inglês
| LILACS
| ID: lil-333002
Biblioteca responsável:
BR1.1
RESUMO
Logging, cattle raising, and agricultural activities have caused the destruction of most forested areas in Costa Rica. In some middle and highlands the abrupt topography delayed the complete destruction of montane forest. Consequently, some fragments of almost pristine forest remain along streams that run in deep canyons. Frequently, these remnants serve as corridors between larger forested areas and as routes for movement of frugivorous birds. Eighteen bird species, e.g., Turdus plebejus, Elaenia frantzii and Ptilogonys caudatus are common dwellers of forest patches throughout the Pacific slope of the Volcßn Barva. These species fly frequently from forest fragments to adjacent pastures. They defected and regurgitated seeds of 28 plant species on stumps scattered on pasture areas. Isolated trees and specially the stumps are suitable microhabitats for germination of seeds and establishment of seedings.
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Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Sementes
/
Árvores
/
Aves
/
Frutas
Limite:
Animais
País/Região como assunto:
América Central
/
Costa Rica
Idioma:
Inglês
Revista:
Rev. biol. trop
Assunto da revista:
Biologia
/
Medicina Tropical
Ano de publicação:
2002
Tipo de documento:
Artigo
País de afiliação:
Costa Rica
Instituição/País de afiliação:
Universidad de Costa Rica/CR