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|Título:||The role of the matrix-edge dynamics of amphibian conservation in tropical montane fragmented landscapes|
|Palabras clave:||Biología; Zoología; Conservación|
amphibians; conservation; edge effects; environmental gradients; shaded coffee plantations; tropical montane cloud forest; vegetation structure
|Fecha de publicación:||23-Sep-2011|
|Editorial:||Instituto de Biología|
|Descripción:||Edge effects play a key role in forest dynamics in which the context of the anthropogenic matrix has a greatinfluence on fragment connectivity and function. The study of the interaction between edge and matrix effects in natureis essential to understand and promote the colonization of some functional groups in managed ecosystems. We studiedthe dynamics of 7 species of frogs and salamanders occurring in 8 ecotones of tropical montane cloud forest (TMCF)which interact with adjacent managed areas of coffee and corn plantations in Guerrero, southern Mexico. A surveyeffort of 196 man/hours along 72 transects detected 58 individuals of 7 amphibian species and 12 environmental andstructural variables were measured. The diversity and abundance of amphibians in the forest mostly depended on thematrix context adjacent to the forest patches. The forest interior provided higher relative humidity, leaf litter cover,and canopy cover that determined the presence of some amphibian species. The use of shaded coffee plantations waspreferred by the amphibians over the corn plots possibly due to the maintenance of native forest arboreal elements,low management rate and less intensity of disturbance in the coffee plantations than in the corn plots. Shaded coffeeplantations reduce the edge effects in TMCF, improve the connectivity between TMCF fragments and increase habitatquality for the forest interior amphibian species. Future wildlife management research should take into account edgeand matrix effects to understand species dynamics which move along anthropogenic-natural ecotones in managedecosystems, thus prioritizing sites to buffer edge effects and increase habitat quality in remaining natural ecosystems.|
|Aparece en las Colecciones:||Revista Mexicana de Biodiversidad|
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