FREE-LIVING FATHEAD MINNOWS RAPIDLY LEARN TO RECOGNIZE PIKE AS PREDATORS

被引:50
作者
CHIVERS, DP
SMITH, RJF
机构
[1] Department of Biology, University of Saskatchewan, Saskatoon, Sask. S7N 5E2
关键词
FISH BEHAVIOR; PREDATOR RECOGNITION; ALARM SUBSTANCE; SCHRECKSTOFF; FATHEAD MINNOW; NORTHERN PIKE;
D O I
10.1006/jfbi.1995.0090
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Individuals from a natural population of approximately 20 000 fathead minnows from a pike-free pond did not respond with appropriate anti-predator behaviour upon encountering pike odour in laboratory tests. However, 14 days after 10 pike were stocked into the pond, minnows had acquired recognition of pike odour. Laboratory studies have indicated several possible mechanisms for acquiring predator recognition in fathead minnows. This study indicates that these, or similar processes, can produce major changes in predator recognition in the wild.
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页码:949 / 954
页数:6
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