Lichen succession on Cecropia spp. trunks in a lower montane wet secondary forest


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Lichen succession on Cecropia spp. trunks in a lower montane wet secondary forest

Material Information

Title:
Lichen succession on Cecropia spp. trunks in a lower montane wet secondary forest
Translated Title:
Sucesión de líquenes en los troncos de Cecropia spp. en un bosque secundario húmedo montano bajo
Creator:
Smith, Megan, M
Publication Date:
Language:
Text in English

Subjects

Subjects / Keywords:
Lichens--Ecology ( lcsh )
Líquenes--Ecología ( lcsh )
Epiphytes ( lcsh )
Epífitas ( lcsh )
Monteverde Biological Station (Costa Rica)
Estación Biológica de Monteverde (Costa Rica)
Costa Rica--Puntarenas--Monteverde Zone--Cerro Plano
Costa Rica--Puntarenas--Zona de Monteverde--Cerro Plano
CIEE Summer 2005
CIEE Verano 2005
Genre:
Reports

Notes

Abstract:
Cecropia spp. are common pioneer tree species in regenerating forest ecosystems and are often covered in trunk colonizers such as lichen, moss, and vines. As the tree ages and a more mature forest closes in, the microhabitat becomes darker and wetter, thus forcing species to change along a vertical species gradient as the succession of epiphytes tends more toward vascular plants. This study looks at epiphytic succession by measuring the percent lichen cover at a constant height on the trunks of Cecropia spp. It was hypothesized that percent lichen cover would decrease as tree diameter increased. One hundred trees were surveyed and percent lichen cover was measured at breast height and crude overall lichen cover was estimated. Lichen cover was found to decrease significantly with increased diameter, supporting the hypothesis. The results from this study indicate that the microhabitat on Cecropia tree trunks changes over time, becoming less suitable to lichens. ( ,, )
Abstract:
Cecropia spp son especies comunes de árboles pioneros que regeneran ecosistemas de bosque y a menudo se cubren con colonizadores de troncos tales como líquenes, musgos y enredaderas. Cuando el árbol envejece y un bosque más maduro se desarrolla, el microhábitat se vuelve más oscuro y húmedo, forzando así a las especies a cambiar en una sucesión vertical que va de las epifitas no vasculares a las plantas vasculares. Se estudió la sucesión de las epifitas midiendo el porcentaje de cubierta de líquenes a una altura constante en los troncos de Cecropia spp. Se predijo que el porcentaje de cubierta de líquenes disminuiría con el aumento en el diámetro del árbol. Se inspeccionaron cien árboles en los que se midió el porcentaje de cubierta de líquenes a la altura del pecho y se estimó la cubierta general de líquenes. La cubierta de líquenes disminuyó significativamente con el aumento del diámetro, apoyando la hipótesis. Los resultados de este estudio indicaron que el microhábitat en los troncos de guarumo cambia con el tiempo, volviéndose menos hospitalario para los líquenes.
Biographical:
Student affiliation: College of Literature, Science and Art, University of Michigan
General Note:
Born Digital

Record Information

Source Institution:
Monteverde Institute
Holding Location:
Monteverde Institute
Rights Management:
This item is licensed with the Creative Commons Attribution Non-Commercial No Derivative License. This license allows others to download this work and share them with others as long as they mention the author and link back to the author, but they can’t change them in any way or use them commercially.
Resource Identifier:
M39-00268 ( USFLDC DOI )
m39.268 ( USFLDC Handle )

Postcard Information

Format:
Book

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Full Text
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Smith, Megan, M.
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Sucesin de lquenes en los troncos de Cecropia spp. en un bosque secundario hmedo montano bajo
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Lichen succession on Cecropia spp. trunks in a lower montane wet secondary forest
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c 2005-08
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Born Digital
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Cecropia spp. are common pioneer tree species in regenerating forest ecosystems and are often covered in trunk colonizers such as lichen, moss, and vines. As the tree ages and a more mature forest closes in, the
microhabitat becomes darker and wetter, thus forcing species to change along a vertical species gradient as the succession of epiphytes tends more toward vascular plants. This study looks at epiphytic succession by
measuring the percent lichen cover at a constant height on the trunks of Cecropia spp. It was hypothesized that percent lichen cover would decrease as tree diameter increased. One hundred trees were surveyed and percent lichen cover was measured at breast height and crude overall lichen cover was estimated. Lichen cover was found to decrease significantly with increased diameter, supporting the hypothesis. The results from this study indicate that the microhabitat on Cecropia tree trunks changes over time, becoming less suitable to lichens.
Cecropia spp son especies comunes de rboles pioneros que regeneran ecosistemas de bosque y a menudo se cubren con colonizadores de troncos tales como lquenes, musgos y enredaderas. Cuando el rbol envejece y un bosque ms maduro se desarrolla, el microhbitat se vuelve ms oscuro y hmedo, forzando as a las especies a cambiar en una sucesin vertical que va de las epifitas no vasculares a las plantas vasculares. Se estudi la sucesin de las epifitas midiendo el porcentaje de cubierta de lquenes a una altura constante en los troncos de Cecropia spp. Se predijo que el porcentaje de cubierta de lquenes disminuira con el aumento en el dimetro del rbol. Se inspeccionaron cien rboles en los que se midi el porcentaje de cubierta de lquenes a la altura del pecho y se estim la cubierta general de lquenes. La cubierta de lquenes disminuy significativamente con el aumento del dimetro, apoyando la hiptesis. Los resultados de este estudio indicaron que el microhbitat en los troncos de guarumo cambia con el tiempo, volvindose menos hospitalario para los lquenes.
546
Text in English.
650
Lichens--Ecology
Epiphytes
Monteverde Biological Station (Costa Rica)
4
Lquenes--Ecologa
Epfitas
Estacin Biolgica de Monteverde (Costa Rica)
653
Tropical Ecology Summer 2005
Guarumo (Cecropia obtusifolia)
Ecologia Tropical Verano 2005
Guarumo (Cecropia obtusifolia)
655
Reports
720
CIEE
773
t Monteverde Institute : Tropical Ecology
856
u http://digital.lib.usf.edu/?m39.268



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