Costly courtship or dishonest display? Intensely displaying sand goby males have lower lipid content |
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Authors: | O Svensson A Nyman C Kvarnemo |
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Institution: | Department of Zoology, Stockholm University, SE‐106 91 Stockholm, Sweden |
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Abstract: | Intensely displaying sand goby Pomatoschistus minutus males had lower lipid content, indicating that signalling increased energy expenditure, or that low condition males increased their signalling effort. Display intensity correlated positively with nest‐defence and tended to correlate positively with filial cannibalism. |
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Keywords: | Gobiidae male–male competition mate choice parental care sexual selection |
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