Capture from the wild has long-term costs on reproductive success in Asian elephants
Capture from the wild has long-term costs on reproductive success in Asian elephants
复制标题
野外捕获会对亚洲象的繁殖成功造成长期成本
DOI：
10.1098/rspb.2019.1584
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
V. Lummaa
中科院分区：
文献类型：
--
作者：
M. Lahdenperä;J. Jackson;W. Htut;V. Lummaa
出于保护、经济或研究的目的，捕获野生动物是很常见的。了解捕获本身如何影响终生健康指标往往很困难，因为野生种群和圈养种群生活在截然不同的环境中，需要长期的生活史数据。在这里，我们展示了野生捕获如何影响缅甸木材工业中使用的2685头亚洲象母象的繁殖。与圈养出生的雌性相比，野生捕获的雌性繁殖成功率持续下降，一生的繁殖概率显著降低，繁殖高峰期的繁殖概率较低，首次繁殖的年龄较晚。此外，这些负面影响持续了十多年，并对下一代产生了重大影响：野生捕获的雌性大象的幼崽存活率降低到5岁。我们的结果表明，野生捕获对繁殖有长期影响，这不仅对大象很重要，对圈养的其他物种也是如此。
Capturing wild animals is common for conservation, economic or research purposes. Understanding how capture itself affects lifetime fitness measures is often difficult because wild and captive populations live in very different environments and there is a need for long-term life-history data. Here, we show how wild capture influences reproduction in 2685 female Asian elephants (Elephas maximus) used in the timber industry in Myanmar. Wild-caught females demonstrated a consistent reduction in breeding success relative to captive-born females, with significantly lower lifetime reproduction probabilities, lower breeding probabilities at peak reproductive ages and a later age of first reproduction. Furthermore, these negative effects lasted for over a decade, and there was a significant influence on the next generation: wild-caught females had calves with reduced survival to age 5. Our results suggest that wild capture has long-term consequences for reproduction, which is important not only for elephants, but also for other species in captivity.
影响因子：
2.5
作者：
Mason, Georgia;Burn, Charlotte C.;Jeschke, Jonathan M.
通讯作者：
Jeschke, Jonathan M.