Journal
SCIENCE
Volume 356, Issue 6334, Pages 180-183Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaj1891
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- University of Sussex
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Hunting is a major driver of biodiversity loss, but a systematic large-scale estimate of hunting-induced defaunation is lacking. We synthesized 176 studies to quantify hunting-induced declines of mammal and bird populations across the tropics. Bird and mammal abundances declined by 58% (25 to 76%) and by 83% (72 to 90%) in hunted compared with unhunted areas. Bird and mammal populations were depleted within 7 and 40 kilometers from hunters' access points (roads and settlements). Additionally, hunting pressure was higher in areas with better accessibility to major towns where wild meat could be traded. Mammal population densities were lower outside protected areas, particularly because of commercial hunting. Strategies to sustainably manage wildmeat hunting in both protected and unprotected tropical ecosystems are urgently needed to avoid further defaunation.
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