Bushmeat hunting, wildlife declines, and fish supply in West Africa
Bushmeat hunting, wildlife declines, and fish supply in West Africa
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DOI：
10.1126/science.1102425
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发表时间：
2004-11-12
期刊：
影响因子：
56.9
通讯作者：
Balmford, A
中科院分区：
文献类型：
--
作者：
Brashares, JS;Arcese, P;Balmford, A
数十亿美元的肉食品贸易是对热带脊椎动物生存的最直接威胁之一，但由于缺乏经验数据，我们对其潜在驱动因素和对人类福祉的影响的理解有限。我们使用了加纳30年的数据，将哺乳动物的减少与肉类贸易以及鱼类供应的时空变化联系起来。我们发现，多年的鱼类供应不足，同时增加狩猎在自然保护区和急剧下降的生物量的41种野生动物。当地市场数据提供证据表明，鱼类供应与村庄随后的肉食需求之间存在直接联系，并显示肉食在该地区作为主食的作用。我们的研究结果强调，迫切需要开发廉价的蛋白质替代品，以肉类和改善渔业管理的外国和国内船队，以避免热带野生动物的灭绝。
The multibillion-dollar trade in bushmeat is among the most immediate threats to the persistence of tropical vertebrates, but our understanding of its underlying drivers and effects on human welfare is limited by a lack of empirical data. We used 30 years of data from Ghana to link mammal declines to the bushmeat trade and to spatial and temporal changes in the availability of fish. We show that years of poor fish supply coincided with increased hunting in nature reserves and sharp declines in biomass of 41 wildlife species. Local market data provide evidence of a direct link between fish supply and subsequent bushmeat demand in villages and show bushmeat's role as a dietary staple in the region. Our results emphasize the urgent need to develop cheap protein alternatives to bushmeat and to improve fisheries management by foreign and domestic fleets to avert extinctions of tropical wildlife.