Do the eyestalks of female diopsid flies have a function in intrasexual aggressive encounters?
Do the eyestalks of female diopsid flies have a function in intrasexual aggressive encounters?
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DOI:
10.1023/b:joir.0000007703.84691.ad
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发表时间:
2003-09-01
影响因子:
1
通讯作者:
Knell, RJ
中科院分区:
文献类型:
--
作者:
Al-khairulla, H;Warburton, D;Knell, RJ
It is widely recognized that male animals frequently exhibit extravagant traits such as long tails, bright coloration, or aural displays. Explaining the presence of these traits in terms of their selective benefit has been an important focus of behavioral ecology over the last few decades, and we now have a broad and successful body of theory and observation dealing with these features of male animals (Andersson, 1994). The possession of similar extravagant traits by females is by no means uncommon, but until recently these have generally been interpreted simply as the consequence of genetic correlations with the sexually selected traits of males (Lande, 1980; Amundsen, 2000) except in those cases where there is clear sex-role reversal (Andersson, 1994, 2000). Recent work has demonstrated that, in addition to these cases, there may be selective advantages for females with extravagant traits in systems without sex-role reversal. In the two-spotted goby, for example, Gobiusculus flavescens, males perform more courtship displays when presented with females with more brightly colored bellies, indicating that female ornamentation in this species is associated with male mate choice (Amundsen and Forsgren, 2001; see also Amundsen [2000] for examples from birds and Bonduriansky [2001] for a review of male choice in insects). Ornaments of