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.
Article
in English
| LILACS
| ID: lil-333002
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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Index:
LILACS (Americas)
Main subject:
Seeds
/
Trees
/
Birds
/
Fruit
Limits:
Animals
Country/Region as subject:
Central America
/
Costa Rica
Language:
English
Journal:
Rev. biol. trop
Journal subject:
Biology
/
Tropical Medicine
Year:
2002
Type:
Article
Affiliation country:
Costa Rica
Institution/Affiliation country:
Universidad de Costa Rica/CR
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