Tropical Ecology and Conservation [Monteverde Institute]

Alternative Title

Método de dispersión en los arboles anfitriones y composición de la comunidad de epifitas vasculares

Creator

Kathleen White

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Publication Date

November 2004

Abstract

The pattern of epiphyte distribution along host trees is a function of many variables. This study examined how the dispersal syndrome of the host tree affected the composition of epiphyte dispersal syndromes in that tree. It was expected that a host tree species bearing bird-dispersed fruits would harbor more epiphytes exhibiting the bird-dispersal syndrome than a tree that has fruits eaten by terrestrial mammals. Two species of host trees were surveyed, Inga sierrae, a tree with terrestrial-mammal dispersed fruits, and Sapium glandulosum, a tree with fruits that are bird-dispersed. Nine of each tree species were sampled. The tree with terrestrial mammal-dispersed fruits contained significantly higher numbers of epiphytes whose fruits are dispersed by birds, while there was no significant difference in numbers of epiphytes with wind- dispersed seeds between the two species. This unexpected result may be due to the differing architecture between the two tree species studied. Las epífitas se distribuyen en los árboles anfitriones en patrones que varían de acuerdo a muchas variables. Este estudio examinó cómo el síndrome de dispersión del árbol anfitrión afectó la composición de los síndromes de dispersión de las epífitas. Se esperaba que una especie de anfitrión de árboles dispersada por las aves abrigara más epífitas dispersadas por las aves. Dos especies de árboles anfitrión fueron examinadas, Inga sierrae, un árbol dispersado por mamíferos terrestres, y Sapium glandulosum, un árbol dispersado por aves. Nueve individuos de cada especie fueron muestreados. Los árboles dispersados por mamíferos terrestres contuvieron cantidades perceptiblemente más altas de epífitas dispersadas por aves. Mientras que no hubo una diferencia significativa en las epífitas dispersadas por el viento entre las dos especies. Este resultado inesperado puede ser debido a las diferentes arquitecturas entre las dos especies estudiadas.

Keywords

Epiphytes--Ecology, Epifitas--Ecologia, Microhabitats, Monteverde Biological Station (Costa Rica), Estacion Biologica de Monteverde (Costa Rica), CIEE Fall 2004, CIEE Otoño 2004

Description

Student affiliation : Department of Biology, Occidental College Born Digital

Subject: topical

Epiphytes--Ecology; Epifitas--Ecologia; Microhabitats; Microhabitats; CIEE Fall 2004; CIEE Otoño 2004

Subject: geographic

Monteverde Biological Station (Costa Rica); Estacion Biologica de Monteverde (Costa Rica)

Genre

Reports

Holding Location

Monteverde Institute MVI

Identifier

M39-00197

Host tree dispersal method and community composition of vascular epiphytes

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