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Ecología Aplicada

versión impresa ISSN 1726-2216

Resumen

MARCELO-PENA, José Luis et al. Diversity, floristic composition and endemism in secondary tropical seasonally dry forests in Jaen, Peru. Ecol. apl. [online]. 2007, vol.6, n.1-2, pp. 9-22. ISSN 1726-2216.

A set of transects was established following the Gentry methodology, for determining tree diversity and endemism levels, floristic composition and complementary vegetation structure information in four locations of secondary, Tropical Seasonally Dry Forests (TSDF) of Jaen, Dp. Cajamarca, Peru. The most abundant families are Boraginaceae, Leguminosae, Malvaceae and Cactaceae; the most abundant genera Cordia, Tetrasida, Esenbeckia y Browningia. The species found to be important are Cordia iguaguana, Tetrasida chachapoyensis y Browningia altissima, the three of them are endemics restricted to the TSDF of the Marañón valley in Peru. Despite the fact that the tree diversity level found is moderate, there are high levels of endemism, in contrast with other interandean and eastern areas in Peru and Ecuador; for this reason, the conservation of the area of study should be prioritized.

Palabras llave : Tree diversity; floristic composition; endemism; Tropical Seasonally Dry Forests; Cordia iguaguana; Tetrasida chachapoyensis; Browningia altissima; conservatio; Jaen; Peru.

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