Effect of leaf harvesting on the demography of the tropical palm Chamaedorea elegans in South-Eastern Mexico
We report the results of a two-year demographic study in which natural populations of Chamaedorea elegans were subject to harvesting twice a year, four times a year, and no harvesting. Projection matrix analyses indicated that population growth rate (?) was above unity (although not significantly so...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | México |
| Recursos: | Universidad Nacional Autónoma de México |
| Repositorio: | Sistema de Información de la Facultad de Ciencias, UNAM |
| OAI Identifier: | oai:repositorio.fciencias.unam.mx:11154/141182 |
| Acesso em linha: | http://hdl.handle.net/11154/141182 |
| Access Level: | acceso abierto |
| Palavra-chave: | Defoliation Chamaedorea elegans elasticity analysis matrix models sustainable harvesting tropical rain forest |
| Resumo: | We report the results of a two-year demographic study in which natural populations of Chamaedorea elegans were subject to harvesting twice a year, four times a year, and no harvesting. Projection matrix analyses indicated that population growth rate (?) was above unity (although not significantly so) in all cases. The lowest ? values (1.03 and 1.04, for 1997-98 and 1998-99, respectively) were obtained in the high intensity defoliation plot. As harvesting intensity increased, fecundity decreased as a result of low fruit production. Leaf production was highest in the plot where defoliation was carried out twice a year (intermediate intensity). |
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