Data from: Dead or alive? Sexual conflict and lethal copulatory interactions in long-jawed Tetragnatha spiders

Yuki G. Baba, Akio Tanikawa, Mayura B. Takada & Kyoko Futami
Inter- and intra-sexual selection are important driving forces that lead to diversification of sexual characteristics. Tetragnatha spiders have elongated chelicerae and sexual dimorphism in chelicera length whose magnitude varies among species. Because they use their chelicerae during copulation and as weapons in male–male competition, this divergence reflects repeated inter- and intra-sexual selection. To infer the causes of chelicera length diversity, we examined the roles of the elongated chelicerae in copulatory behaviour of a Tetragnatha species...
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