Sustainable trophy hunting of African lions

被引:160
|
作者
Whitman, K [1 ]
Starfield, AM [1 ]
Quadling, HS [1 ]
Packer, C [1 ]
机构
[1] Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN 55108 USA
基金
美国国家科学基金会; 美国安德鲁·梅隆基金会;
关键词
D O I
10.1038/nature02395
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In most species, sport hunting of male trophy animals can only reduce overall population size when the rate of removal of males is so high that females can no longer be impregnated(1). However, where males provide extensive paternal care, the removal of even a few individuals could harm the population as a whole(2,3). In species such as lions, excessive trophy hunting could theoretically cause male replacements (and associated infanticide(4,5)) to become sufficiently common to prevent cubs reaching adulthood. Here we simulate the population consequences of lion trophy hunting using a spatially explicit, individual-based, stochastic model parameterized with 40 years of demographic data from northern Tanzania. Although our simulations confirm that infanticide increases the risk of population extinction, trophy hunting could be sustained simply by hunting males above a minimum age threshold, and this strategy maximizes both the quantity and the quality of the long-term kill. We present a simple non-invasive technique for estimating lion age in populations lacking long-term records, and suggest that quotas would be unnecessary in any male-only trophy species where age determination could be reliably implemented.
引用
收藏
页码:175 / 178
页数:4
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