Dietary Response of a Group of François' Langur Trachypithecus francoisi in a Fragmented Habitat in the County of Fusui, China: Implications for Conservation
2009
Francois' langur Trachypithecus francoisi is a threatened monkey species whose populations have been declining rapidly during the last four decades, and at the same time, there has been a severe fragmentation of the species' habitat. Using focal animal sampling and continuous recording, we studied food selection of a group of Francois' langur in a small fragmented habitat in the county of Fusui, Guangxi Province, China. We also analysed the vegetation data obtained within their home range using quadrat sampling. The langurs consumed a higher proportion of leaves but from a smaller number of plant species than their conspecifics in continuous habitats. They selectively utilised specific species as food sources, and they spent 61.6% of their feeding time on four staple species, whilst only 38.4% of their feeding time was spent on the 36 plant species that were either seasonally or rarely consumed food items. Although our sample sizes were small and from a single group, our results suggest that, similar to o...
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