Tropical Ecology and Conservation [Monteverde Institute]

Creator

Clay Buchanan

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Publication Date

September 2001

Abstract

Throughfall in forests is known to increase pH as a result of many neutralizing components on the tree. The purpose of this study was to examine how the change in pH due to Throughfall, affected the faunal composition in bromeliad tank communities. A total of 46 bromeliad tanks were sampled, which contained 2300 protists in 18 morphospecies. No significant correlation was found between pH and height on the tree or pH and volume of the tank sample. A decrease in diversity was noticed with the increase in volume of water in the tanks corresponding to heavy rainfall caused by hurricane Michelle. Abundance and richness did not have a significant correlation with pH. The average pH was 6.29 (±0.706), while the average pH for precipitation in the Monteverde area is 4.88. The difference in pH values is a result of a large increase in rain to the region during the study and because of throughfall effects. Es conocido que el agua que cae a través del bosque aumenta en pH como resultado de varios elementos neutralizantes en el árbol. El propósito de esta investigación era examinar como el cambio en el pH causa de dicha caída del agua afectaba la composición de la fauna de las comunidades en tanques de bromelias. En total se colectó agua en 46 tanques de bromelias, en los cuales se encontró 2300 protistas en 18 morfo especies. No se encontraba ninguna correlación significativa entre el pH y la altura del árbol o pH y el volumen de la muestra de agua en el tanque. Se noto una disminución en la diversidad con un aumento en el agua en los tanques. No se encontró una correlación significativa en la abundancia y riqueza con el pH. El promedio del pH era 6.29 (±0.706), mientras el promedio del pH de la precipitación en el área deMonteverde es 4.88. La diferencia en los valores de pH es el resultado de un aumento de lluvia en la región durante la investigación y los efectos de la caída del agua.

Description

Student affiliation: Department of Biology, Central Michigan University Digitized by MVI

Genre

Reports

Holding Location

Monteverde Institute MVI

Identifier

M39-00086

Faunal changes in bromeliad tank communities as a result of throughfall pH changes

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