Changes in saprophytic fungal community structure in response to variations in moisture content


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Changes in saprophytic fungal community structure in response to variations in moisture content

Material Information

Title:
Changes in saprophytic fungal community structure in response to variations in moisture content
Translated Title:
Los cambios en la estructura de la comunidad de hongos saprofitos en respuesta a las variaciones en el contenido de humedad
Creator:
Gellings, Jessica
Publication Date:
Language:
Text in English

Subjects

Subjects / Keywords:
Fungi ( lcsh )
Macrohongos ( lcsh )
Epiphytes--Ecology ( lcsh )
Epifitas--Ecologia ( lcsh )
Species diversity ( lcsh )
Diversidad de especies ( lcsh )
Monteverde Biological Station (Costa Rica)
Estacion Biologica de Monteverde (Costa Rica)
CIEE Summer 2004
CIEE Verano 2004
Genre:
Reports

Notes

Abstract:
This study examined community structure of fungal species on dead wood substrates of different moisture contents in Monteverde, Puntarenas, Costa Rica. Forty-five different samples of dead wood substrate were located in the cloud forest and sampled for abundance of fungi individuals and number of fungal morphospecies. Penetrability as a measure of moisture content, surface area, and percent of epiphytic and lichen cover were also recorded for each sample of dead wood substrate. A total of 42 morphospecies were found, with only three of them overlapping between hard and soft substrates. Significant negative correlations were found between penetrability and abundance of fungi individuals (r2= .251, p = .0005), as well as between penetrability and fungal diversity (r2= .217, p = .0013). The negative correlations suggest that there is a moisture barrier-a certain substrate saturation- beyond which fungal growth is restricted. The low rate of species overlap between hard and soft substrates indicates that there is a difference in community structure depending on moisture content. ( ,, )
Abstract:
Esté experimento se centró en la sucesión de especies de hongos diferentes en los árboles muertos en Monteverde, Puntarenas, Costa Rica. Se encontraron 45 muestras de árboles caídos en el bosque nuboso y estos se examinaron para encontrar la abundancia de hongos individuales, números de morfoespecies, y diversidad. También se anotó la penetrabilidad, el área superficial, el porcentaje de la cubierta de epifitas y de líquenes para cada muestra de sustrato en los troncos caídos. Se encontró un total de 42 morfoespecies, con solamente tres de estas en traslape entre sustratos duros y sustratos suaves. Se usó regresiones simples para encontrar correlaciones negativas significativas entre penetrabilidad y la abundancia de hongos individuales, así como entre penetrabilidad y diversidad de hongos en cada muestra de sustrato. Las correlaciones negativas sugieren que hay una barrera de humedad más allá de la cual el crecimiento de la especies de hongo entre sustratos duros y suaves indica que hay una diferencia en la estructura de la comunidad dependiente del contenido de humedad.
Biographical:
Student Affiliation: Department of Environment and Natural Resources, University of MinnesotaTwin Cities
Acquisition:
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:
M39-00183 ( USFLDC DOI )
m39.183 ( USFLDC Handle )

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Full Text
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Gellings, Jessica
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Los cambios en la estructura de la comunidad de hongos saprofitos en respuesta a las variaciones en el contenido de humedad
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Changes in saprophytic fungal community structure in response to variations in moisture content
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c 2004-08
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This study examined community structure of fungal species on dead wood substrates of different moisture contents in Monteverde, Puntarenas, Costa Rica. Forty-five different samples of dead wood substrate were located in the cloud forest and sampled for abundance of fungi individuals and number of fungal
morphospecies. Penetrability as a measure of moisture content, surface area, and percent of epiphytic and lichen cover were also recorded for each sample of dead wood substrate. A total of 42 morphospecies were
found, with only three of them overlapping between hard and soft substrates. Significant negative correlations were found between penetrability and abundance of fungi individuals (r2= .251, p = .0005), as
well as between penetrability and fungal diversity (r2= .217, p = .0013). The negative correlations suggest that there is a moisture barrier-a certain substrate saturation- beyond which fungal growth is restricted. The
low rate of species overlap between hard and soft substrates indicates that there is a difference in community structure depending on moisture content.
Est experimento se centr en la sucesin de especies de hongos diferentes en los rboles muertos en Monteverde, Puntarenas, Costa Rica. Se encontraron 45 muestras de rboles cados en el bosque nuboso y estos se examinaron para encontrar la abundancia de hongos individuales, nmeros de morfoespecies, y diversidad. Tambin se anot la penetrabilidad, el rea superficial, el porcentaje de la cubierta de epifitas y de lquenes para cada muestra de sustrato en los troncos cados. Se encontr un total de 42 morfoespecies, con solamente tres de estas en traslape entre sustratos duros y sustratos suaves. Se us regresiones simples para encontrar correlaciones negativas significativas entre penetrabilidad y la abundancia de hongos individuales, as como entre penetrabilidad y diversidad de hongos en cada muestra de sustrato. Las correlaciones negativas sugieren que hay una barrera de humedad ms all de la cual el crecimiento de la especies de hongo entre sustratos duros y suaves indica que hay una diferencia en la estructura de la comunidad dependiente del contenido de humedad.
546
Text in English.
650
Fungi
Epiphytes--Ecology
Species diversity
Monteverde Biological Station (Costa Rica)
4
Macrohongos
Epifitas--Ecologa
Diversidad de especies
Estacin Biolgica de Monteverde (Costa Rica)
653
Tropical Ecology Summer 2004
Ecologa Tropical Verano 2004
655
Reports
720
CIEE
773
t Monteverde Institute : Tropical Ecology
856
u http://digital.lib.usf.edu/?m39.402


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