Ecological and evolutionary traps

被引:1073
作者
Schlaepfer, MA
Runge, MC
Sherman, PW
机构
[1] Cornell Univ, Field Ecol & Evolutionary Biol, Ithaca, NY 14853 USA
[2] Cornell Univ, Dept Nat Resources, Ithaca, NY 14853 USA
[3] US Geol Survey, Patuxent Wildlife Res Ctr, Laurel, MD 20708 USA
[4] Cornell Univ, Dept Neurobiol & Behav, Ithaca, NY 14853 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0169-5347(02)02580-6
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Organisms often rely on environmental cues to make behavioral and life-history decisions. However, in environments that have been altered suddenly by humans, formerly reliable cues might no longer be associated with adaptive outcomes. In such cases, organisms can become 'trapped' by their evolutionary responses to the cues and experience reduced survival or reproduction. Ecological traps occur when organisms make poor habitat choices based on cues that correlated formerly with habitat quality. Ecological traps are part of a broader phenomenon, evolutionary traps, involving a dissociation between cues that organisms use to make any behavioral or life-history decision and outcomes normally associated with that decision. A trap can lead to extinction if a population falls below a critical size threshold before adaptation to the novel environment occurs. Conservation and management protocols must be designed in light of, rather than in spite of, the behavioral mechanisms and evolutionary history of populations and species to avoid 'trapping' them.
引用
收藏
页码:474 / 480
页数:7
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