Large mammal population declines in Africa's protected areas
Large mammal population declines in Africa's protected areas
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DOI：
10.1016/j.biocon.2010.06.007
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发表时间：
2010-09-01
影响因子：
5.9
通讯作者：
Hutton, Jon M.
中科院分区：
文献类型：
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作者：
Craigie, Ian D.;Baillie, Jonathan E. M.;Hutton, Jon M.
保护区 (PA) 是全球保护工作的基石，但其在维持关键物种种群方面的表现仍然鲜有记录。在这里，我们使用包含 78 个非洲保护区 69 种大型哺乳动物的 583 个种群丰度时间序列的新数据库来解决这一差距。种群丰度时间序列被汇总，形成种群丰度总体变化的多物种指数。该指数显示，1970 年至 2005 年间，人口丰度平均下降了 59%。非洲不同地区的指数显示出巨大的地区差异，南部非洲的保护区通常维持其人口数量，而西非的保护区则遭受最严重的下降。这些结果表明，非洲保护区普遍未能减轻人类对非洲大型哺乳动物种群造成的威胁，但也取得了一些成功。我们指数的进一步发展有助于衡量 2010 年后减少生物多样性丧失目标的未来进展。 (C) 2010 Elsevier Ltd. 保留所有权利。
Protected areas (PAs) are the cornerstone of global conservation efforts but their performance in maintaining populations of their key species remains poorly documented. Here, we address this gap using a new database of 583 population abundance time series for 69 species of large mammals in 78 African PAs. Population abundance time series were aggregated to form a multi-species index of overall change in population abundance. The index reveals on average a 59% decline in population abundance between 1970 and 2005. Indices for different parts of Africa demonstrate large regional differences, with southern African PAs typically maintaining their populations and western African PAs suffering the most severe declines. These results indicate that African PAs have generally failed to mitigate human-induced threats to African large mammal populations, but they also show some successes. Further development of our index could help to measure future progress towards post-2010 targets for reducing biodiversity loss. (C) 2010 Elsevier Ltd. All rights reserved.