Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica

We evaluated seed removal and the rate of removed seeds (as a measure of dispersal) in two nearby tropical rain forest sites in the Caribbean lowlands of Costa Rica that had been selectively logged buth that differ in their degree of protection from human intrusion (primarily due to hunting) and hab...

Descripción completa

Detalles Bibliográficos
Autores principales:	Rosales, Jesús J., Guariguata, Manuel R., Finegan, Bryan
Formato:	Ponencia
Lenguaje:	Español
Publicado:	CATIE 2015
Materias:	SEMILLAS FORESTALES DISPERSION COSTA RICA
Acceso en línea:	https://repositorio.catie.ac.cr/handle/11554/7039

id	RepoCATIE7039
record_format	dspace
spelling	RepoCATIE70392021-12-22T19:22:51Z Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica Rosales, Jesús J. Guariguata, Manuel R. Finegan, Bryan SEMILLAS FORESTALES DISPERSION COSTA RICA We evaluated seed removal and the rate of removed seeds (as a measure of dispersal) in two nearby tropical rain forest sites in the Caribbean lowlands of Costa Rica that had been selectively logged buth that differ in their degree of protection from human intrusion (primarily due to hunting) and habitat connectivity: We expected differences between sites in rates of seed removal and the rate of removed seeds, and predicted that secondary seed dispersal rates by mammals would be highest at the protected site. Patterns of seed removal under two protection treatments (semipermeable cages vs. uncaged) varied both within species across sites and within sites across species suggesting site differences in the abundance of vertebrate seed consumers. However, differences were largely species specific. For all species combined, twice as many seeds were dispersed after 50 d of observation at La Selva. We found evidence for differential seed survival in our study species between sites, probably related to altered mammal community composition probably as a result of hunting pressure and loss of habitat connectivity at Tirimbina with respect to La Selva. 2015-05-29T17:03:22Z 2015-05-29T17:03:22Z 1999-04 Ponencia https://repositorio.catie.ac.cr/handle/11554/7039 CATIE, Turrialba (Costa Rica) Turrialba (Costa Rica) es Semana Científica;4 application/pdf CATIE
institution	Centro Agronómico Tropical de Investigación y Enseñanza
collection	Repositorio CATIE
language	Español
topic	SEMILLAS FORESTALES DISPERSION COSTA RICA
spellingShingle	SEMILLAS FORESTALES DISPERSION COSTA RICA Rosales, Jesús J. Guariguata, Manuel R. Finegan, Bryan Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica
description	We evaluated seed removal and the rate of removed seeds (as a measure of dispersal) in two nearby tropical rain forest sites in the Caribbean lowlands of Costa Rica that had been selectively logged buth that differ in their degree of protection from human intrusion (primarily due to hunting) and habitat connectivity: We expected differences between sites in rates of seed removal and the rate of removed seeds, and predicted that secondary seed dispersal rates by mammals would be highest at the protected site. Patterns of seed removal under two protection treatments (semipermeable cages vs. uncaged) varied both within species across sites and within sites across species suggesting site differences in the abundance of vertebrate seed consumers. However, differences were largely species specific. For all species combined, twice as many seeds were dispersed after 50 d of observation at La Selva. We found evidence for differential seed survival in our study species between sites, probably related to altered mammal community composition probably as a result of hunting pressure and loss of habitat connectivity at Tirimbina with respect to La Selva.
format	Ponencia
author	Rosales, Jesús J. Guariguata, Manuel R. Finegan, Bryan
author_facet	Rosales, Jesús J. Guariguata, Manuel R. Finegan, Bryan
author_sort	Rosales, Jesús J.
title	Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica
title_short	Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica
title_full	Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica
title_fullStr	Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica
title_full_unstemmed	Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica
title_sort	seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in costa rica
publisher	CATIE
publishDate	2015
url	https://repositorio.catie.ac.cr/handle/11554/7039
work_keys_str_mv	AT rosalesjesusj seedremovalandseeddispersalintwoselectivelyloggedforestswithcontrastingprotectionlevelsincostarica AT guariguatamanuelr seedremovalandseeddispersalintwoselectivelyloggedforestswithcontrastingprotectionlevelsincostarica AT fineganbryan seedremovalandseeddispersalintwoselectivelyloggedforestswithcontrastingprotectionlevelsincostarica
_version_	1808116873698476032

Seed removal and seed dispersal in two selectively-logged forests with contrasting protection levels in Costa Rica

Ejemplares similares