Tropical Ecology and Conservation [Monteverde Institute]

Creator

Ryan Pjesky

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Publication Date

September 2001

Abstract

This study was completed in Monteverde, Costa Rica on the diversity of medicinal plants in: premontane wet/moist and premontane wet forest. The purpose of this study was to find overall plant diversity and medicinal plant diversity within these two forests. After finding medicinal plant diversity, a conservation value could then be applied for each life zone accordingly. This was done by surveying three, 10-meter square plots in both life zones. It was hypothesized that plant diversities would be different within the two life zones. This hypothesis was not supported: the two plant communities had similar richness (S), diversity (H'), and evenness (E) for overall plant diversity and medicinal plant diversity. On a family level, premontane wet/moist medicinal plant diversity had richness of 21 families, H' = 2.2, and E = 0.37. On a family level, premontane wet medicinal plant diversity resulted in a richness of 19 families, H' = 2.4, and E = 0.39. These results were also reflected on genera and species levels for medicinal plant diversity and overall plant diversity. One explanation for this equivalence of diversity is perhaps the two life zones sampled were successionally similar forests. Another explanation is that it is possible these two areas were actually the same life zone due lack of elevation differentiation. In order to allow for assurance in results and proper conservation values more studies need to be done, on a larger scale, with more exhaustive sampling. Esta investigación analizó la diversidad de plantas medicinales en dos zonas de vida: premontano mojado/húmedo y premontano mojado. El propósito es mostrar que la diversidad total de plantas en relación a la diversidad de plantas medicinales. Después de esto, es posible aplicar un valor de Conservación. Este análisis fue hecho investigando tres parcelas de diez-metros cuadrados en ambas zonas de vida. Mi suposición es que la diversidad de plantas es diferente en cada zona de vida. Mis datos no apoyan mi suposición pues ambas comunidades tuvieron riquezas similares (S), diversidad (H’) y uniformidad (E) en la relación de diversidad de plantas y plantas medicinales. A nivel de familia, la zona premontano mojado/húmedo la diversidad de plantas medicinales tuvo 21 familias, H’ = 2.2, y E = 0.37. En una nivel de familia en la zona premontano húmedo la diversidad de plantas medicinales tuvo 19 familias, H’ = 2.4, y E = 0.39. Estos resultados fueron parecidos a los niveles de géneros y especies en el total de diversidad de plantas y plantas medicinales. Una explicación por la similitud en la diversidad es que las parcelas fueron en zonas de regeneración. Otra explicación es que los bosques fueron similares. Es necesario más estudios durante periodos más largos para mostrar que el valor de las plantas medicinales en Conservación.

Description

Student affiliation: Department of Environmental Studies, University of Colorado at Boulder Digitized by MVI

Genre

Reports

Holding Location

Monteverde Institute MVI

Identifier

M39-00095

A medicinal plant analysis in premontane wet/moist and premontane wet life zones in Monteverde, Costa Rica

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