4.4 Article Proceedings Paper

Fishes as models in studies of sexual selection and parental care

期刊

JOURNAL OF FISH BIOLOGY
卷 63, 期 -, 页码 17-52

出版社

WILEY
DOI: 10.1111/j.1095-8649.2003.00219.x

关键词

behaviour; mate choice; mate preferences; mating competition; parental investment; sex roles

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Fishes are by far the most diverse group of vertebrates. This fact is in no way, however, reflected in their use as model organisms for understanding Sexual selection or parental care. Why is this so? Is it because Fishes are actually poor models? The usefulness of fishes as models for sexual selection and parental care is discussed by emphasizing some problems inherent in fish studies, along with a number of reasons why fishes are indeed excellently suited. The pros and cons of fishes as models are discussed mainly by comparison with birds, the Most Popular model organisms in animal behaviour. Difficulties include a lack of background knowledge for many species, and the problems of marking and observing fishes in their natural environment. Positive attributes include the diversity of lifestyles among fishes, and the ease with which they can be studied experimentally in the laboratory. HOW useful fish models can be is briefly illustrated by the impressive and broadly relevant advances derived from studies of guppies Poecilia reticulata and three-spined sticklebacks Gasterosteus aculeatus. A selection of topics is highlighted where fish Studies have either advanced or could greatly enhance, the understanding of processes fundamental to animal reproductive dynamics. Such topics include sex role dynamics, the evolution of female ornamentation and mate choice copying. Finally, a number of potential pitfalls in the future use of fish as models for sexual selection and parental care are discussed. Researchers interested in these issues are recommended to make much more extensive use of fish models, but also to adopt a wider range of models among fishes. (C) 2003 The Fisheries Society of the British Isles.

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