Estratificación vertical y preferencia de hospedero de las epífitas vasculares de un bosque nublado de Chiapas, México

 

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Detalles Bibliográficos
Autores: Martínez Meléndez, Nayely, A. Pérez Farrera, Miguel, Flores Palacios, Alejandro
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2008
Descripción:The high diversity of vascular epiphytes in neotropical montane forest has been explained as the result of vertical stratification of the forest and specific relationships between epiphytes and their hosts trees at local scales. In a lower montane cloud forest, we studied the vertical stratification and host preferences of vascular epiphytes in a 0.0625 ha plot where 41 trees ≥ of 10 cm DBH were sampled during 12 months in 2001 and 2002. We found 43 epiphyte species growing on 15 tree genera. We tested for vertical strata and host preferences using 19 epiphyte taxa. We found strong evidence that epiphytes divided the canopy, but those epiphyte species dispersed by animals were generalists with respect to hosts and vertical strata. Wind dispersed epiphytes were vertically stratified, with a higher richness in the lowest tree strata. On average the epiphytes preferred 3.5 host species, suggesting low host preference. Two host species, Ardisia and Quercus, were avoided by the majority of the epiphyte species. Our results show that epiphytes divided the canopy horizontally and were stratified vertically, suggesting that host identity could be important determining the abundance of colonizing sites for epiphytes.
País:Portal de Revistas UCR
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Lenguaje:Español
OAI Identifier:oai:portal.ucr.ac.cr:article/5780
Acceso en línea:https://revistas.ucr.ac.cr/index.php/rbt/article/view/5780
Palabra clave:El Triunfo
epífitas
Chiapas
forofitos
distribución vertical
epiphytes
host tree preference
vertical distribution