期刊
MOLECULAR ECOLOGY
卷 17, 期 1, 页码 209-220出版社
WILEY
DOI: 10.1111/j.1365-294X.2007.03522.x
关键词
fishery; invertebrates; macroevolution; microevolution; size-selective harvesting; terrestrial vertebrates
Size-selective harvesting, where the large individuals of a particular species are preferentially taken, is common in both marine and terrestrial habitats. Preferential removal of larger individuals of a species has been shown to have a negative effect on its demography, life history and ecology, and empirical studies are increasingly documenting such impacts. But determining whether the observed changes represent evolutionary response or phenotypic plasticity remains a challenge. In addition, the problem is not recognized in most management plans for fish and marine invertebrates that still mandate a minimum size restriction. We use examples from both aquatic and terrestrial habitats to illustrate some of the biological consequences of size-selective harvesting and discuss possible future directions of research as well as changes in management policy needed to mitigate its negative biological impacts.
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