Ejaculatory strategies associated with experience of losing
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- Kensuke Okada
- Laboratory of Evolutionary Ecology, Graduate School of Environmental Science, Okayama University, Tsushima-naka 111, Okayama 700-8530, Japan
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- Takashi Yamane
- Laboratory of Evolutionary Ecology, Graduate School of Environmental Science, Okayama University, Tsushima-naka 111, Okayama 700-8530, Japan
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- Takahisa Miyatake
- Laboratory of Evolutionary Ecology, Graduate School of Environmental Science, Okayama University, Tsushima-naka 111, Okayama 700-8530, Japan
書誌事項
- 公開日
- 2010-04-14
- 権利情報
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- https://royalsociety.org/journals/ethics-policies/data-sharing-mining/
- DOI
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- 10.1098/rsbl.2010.0225
- 公開者
- The Royal Society
この論文をさがす
説明
<jats:p> Modulation of behaviours as a result of fighting experience has been observed in many animals and can influence pre-copulatory sexual selection. This study investigated how fighting experience affects ejaculatory strategies. In male flour beetles, <jats:italic>Gnatocerus cornutus</jats:italic> , experience of losing a fight decreases a male's aggressiveness for up to 4 days. We found that males losing a fight show increased ejaculatory investment, but there was no ejaculatory modulation owing to winning. However, the increase in ejaculate investment following a loss was no longer observed after 5 days. These results indicate that males adjust their investment in sperm competition according to their experience, and that fighting experience can significantly influence pre- and post-copulatory reproductive tactics. </jats:p>
収録刊行物
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- Biology Letters
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Biology Letters 6 (5), 593-596, 2010-04-14
The Royal Society
