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Revista de Biología Tropical
Article . 2012
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Revista de Biología Tropical
Article . 2012
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Dieta de Odocoileus virginianus (Artiodactyla: Cervidae) en un bosque templado del norte de Oaxaca: México

Authors: González, Graciela; Briones Salas, Miguel;

Dieta de Odocoileus virginianus (Artiodactyla: Cervidae) en un bosque templado del norte de Oaxaca: México

Abstract

The Sierra Madre de Oaxaca region, located in the Northern state of Oaxaca, Mexico, is an area of forest ecosystems subject to high exploitation rates, although in some areas its temperate forests are conserved by indigenous community initiatives that live there. We analyzed the diet of white tailed-deer (Odocoileus virginianus) in the localities of Santa Catarina Lachatao and San Miguel Amatlán from June 1998 to August 1999. Sampling was done during both the wet and dry seasons, and included the observation of browsing traces (238 observations), microhistological analysis of deer feces (28 deer pellet-groups), and two stomach content analysis. The annual diet of white-tailed deer was composed of 42 species from 23 botanical families. The most represented families in the diet of this deer were Fagaceae, Asteraceae, Ericaceae and Fabaceae. There were significant differences in the alpha diversity of the diet during the wet and dry seasons (H?=2.957 and H?=1.832, respectively). The similarity percentage between seasons was 56%. Differences in plant species frequency were significantly higher during the wet season. Herbaceous plants made up the greatest percentage of all the species consumed. The preferred species throughout the year were Senecio sp. (shrub), Sedum dendroideum (herbaceous), Arctostaphylos pungens (shrub) and Satureja macrostema (shrub). Diet species richness was found to be lower than that observed in a tropical forest (Venezuela), tropical dry forest (Mexico) and temperate deciduous and mixed forest (Mexico), but similar to the diet species richness observed in a tropical dry forest (Costa Rica) and temperate coniferous and deciduous forests (USA)

La región de la Sierra Madre de Oaxaca, ubicada al norte del estado de Oaxaca, México, es una zona de ecosistemas con alta actividad forestal; en algunas áreas sus bosques templados son conservados por iniciativas de las comunidades indígenas que ahí habitan. Dentro de estos bosques, se analizó la dieta del venado cola blanca (Odocoileus virginianus) en San Miguel Amatlán y Santa Catarina Lachatao entre junio 1998 y agosto 1999. Se utilizó el análisis microhistológico de heces fecales, la observación de rastros de ramoneo en plantas y el análisis de contenidos estomacales. La dieta anual estuvo constituida por 42 especies de 23 familias vegetales. Las familias con el mayor número de especies fueron: Fagaceae, Asteraceae, Ericaceae y Fabaceae. La diversidad de la dieta durante la estación húmeda y seca no presentó diferencias significativas (H'= 0.918 y H'=0.867 respectivamente). El porcentaje de similitud entre ambas temporadas fue de 58%. La diferencia entre la frecuencia de aparición de las especies vegetales fue mayor en la estación húmeda. Del total de especies consumidas, el mayor porcentaje estuvo constituido por las herbáceas. Las especies preferidas a lo largo del año fueron: Sedum dendroideum (herbácea) y Satureja macrostema (arbusto). La riqueza de especies en la dieta fue menor a la observada en otras regiones con bosques tropicales y bosques mixtos, pero similar a la obtenida en un bosque tropical seco en Costa Rica y en los bosques de coníferas en Estados Unidos.

Country
Costa Rica
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Keywords

dieta, QH301-705.5, Biología, white-tailed deer, feces, White-tailed deer, microhistological analysis, análisis microhistológico, venado cola blanca, heces fecales, Biology (General), diet, sierra madre de oaxaca, Venado cola blanca, Sierra Madre de Oaxaca

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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!
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