Sexual selection promotes colonial breeding in shell-brooding cichlid fish
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چکیده
منابع مشابه
Sexual selection promotes colonial breeding in shell-brooding cichlid fish
http://dx.doi.org/10.1016/j.anbehav.2015.11.022 0003-3472/© 2015 The Association for the Study of A Colonial species breed in densely aggregated territories containing no resources other than nest sites. This behaviour is usually explained by natural selection, for instance through benefits resulting from reduced predation risk. An alternative hypothesis suggests that, as in lek breeding system...
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Theory predicts that males experiencing elevated levels of sperm competition will invest more in gonads and produce faster-swimming sperm. Although there is ample evidence in support of the first prediction, few studies have examined sperm swimming speed in relation to sperm competition. In this study, we tested these predictions from sperm competition theory by examining sperm characteristics ...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2016
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2015.11.022