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Estructura y Composición de dos Remanentes de Bosque Premontano Muy Húmedo en la Reserva Madre Verde, Palmares, Costa Rica.

Authors: Rodríguez Arias, Cindy; Brenes Cambronero, Liz;

Estructura y Composición de dos Remanentes de Bosque Premontano Muy Húmedo en la Reserva Madre Verde, Palmares, Costa Rica.

Abstract

Se estudió la estructura y composición de especies de dos remanentes de bosque premontano muy húmedo en la Reserva Madre Verde ubicada en La Granja de Palmares, Valle Central de Costa Rica. Se establecieron dos parcelas, P1 en un remanente de bosque intervenido y P2 de bosque no intervenido y se midieron e identificaron todos los árboles con diámetro a la altura del pecho (> 5 cm). Se encontró un total de 92 especies, 55 en la P1 y 58 en la P2, con similitud de 0.37 (coeficiente de comunidad de Sorensen), sólo 21 especies están presentes en ambas. Las familias con mayor riqueza de especies fueron Lauraceae, Moraceae, Fabaceae y Flacourtiaceae. La densidad de árboles con DAPs mayores a 10 cm fue de 329 árboles/ha en la P1 y 781 en la P2. Las especies con índice de valor de importancia superior a 10 fueron en orden de importancia Ficus hartwegii, Cupania glabra, Ocotea veraguensis y Tapirira myriantha.en la P1 y Mollinedia costaricensis, Psychotria panamensis, Ficus hartwegii, Nectandra membranacea, Cojoba costaricensis y Guarea glabra en la P2. La distribución diamétrica en ambas parcelas muestra la forma característica de J invertida. Las diferencias en cuanto a abundancia de árboles, composición florística y distribución espacial de algunas especies en las dos parcelas de estudio evidencian la heterogeneidad de la vegetación en esta Reserva. Según los resultados, se concluye que los dos remanentes de bosque de la Reserva Madre Verde tienen características de composición, riqueza de especies, densidad y distribución diamétrica similares a otros bosques primarios o remanentes de la zona de vida del bosque premontano y constituyen un reservorio natural importante para la conservación de la diversidad nativa característica de esta zona de vida y como referencia para proyectos de reforestación en esta zona.

The structure and species composition of two premontane wet forest remnants were studied in the Madre Verde Reserve in La Granja, Palmares, Central Valley of Costa Rica. Two plots were established, P1 in a disturbed forest and P2 in a non-disturbed forest, and all trees with a diameter at breast height (DBH) > 5 cm or greater were marked, measured and identified. A total of 92 tree species were recorded, 55 in P1 and 58 in P2, and the species similarity among the plots was S=0.37 (Sørensen Similarity Index), only 21 species were present in both. The Families with higher species richness were Lauraceae, Moraceae, Fabaceae and Flacourtiaceae. The density of trees with DBH greater than 10 cm was 329 trees/ha in the P1 and 781 in P2. The species with greater Importance Value Index (>10) were in order of importance Ficus hartwegii, Cupania glabra, Ocotea veraguensis and Tapirira myriantha in P1 and Mollinedia costaricensis, Psychotria panamensis, Ficus hartwegii, Nectandra membranacea, Cojoba costaricensis and Guarea glabra in P2. The size class distributions in both plots followed the expected J-inverted shape. Differences in terms of tree abundance, floristic composition and spatial distribution of some species among the two plots suggest heterogeneity of arborescent vegetation in the Reserve. In conclusion, the two remaining forest on the Madre Verde Reserve have composition, density, species richness and size class distribution similar to other primary forests or remnants of the premontane life zone and are an important natural reservoir for the conservation of native biological diversity of this area and as a reference for reforestation projects in this area.

Country
Costa Rica
Related Organizations
Keywords

estructura, bosque húmedo premontano, composición, remanentes de bosque, composition, forest remnants, riqueza de especies, structure, species richness, premontane wet forest

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green