期刊
ECOLOGY LETTERS
卷 16, 期 5, 页码 687-694出版社
WILEY
DOI: 10.1111/ele.12102
关键词
Biodiversity; bushmeat; conservation; defaunation; hunting; national park; rainforest; seed dispersal; spatial pattern; tropical
类别
资金
- Direct For Biological Sciences
- Division Of Environmental Biology [1046113] Funding Source: National Science Foundation
Hunting affects a considerably greater area of the tropical forest biome than deforestation and logging combined. Often even large remote protected areas are depleted of a substantial proportion of their vertebrate fauna. However, understanding of the long-term ecological consequences of defaunation in tropical forests remains poor. Using tree census data from a large-scale plot monitored over a 15-year period since the approximate onset of intense hunting, we provide a comprehensive assessment of the immediate consequences of defaunation for a tropical tree community. Our data strongly suggest that over-hunting has engendered pervasive changes in tree population spatial structure and dynamics, leading to a consistent decline in local tree diversity over time. However, we do not find any support for suggestions that over-hunting reduces above-ground biomass or biomass accumulation rate in this forest. To maintain critical ecosystem processes in tropical forests increased efforts are required to protect and restore wildlife populations.
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