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首页> 外文期刊>Canadian Journal of Zoology >Effect of operational sex ratio on female-female versus male-male competitive aggression
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Effect of operational sex ratio on female-female versus male-male competitive aggression

机译：手术性别比对男女竞争性侵略的影响

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摘要

We compared the patterns of female-female and male-male competition in Japanese medaka (Oryzias latipes) in response to changes in the operational sex ratio (OSR), the ratio of sexually active members of one sex to sexually active members of the opposite sex. As expected, courtship behaviour and intrasexual aggression were more frequent in males than in females. However, the overall patterns of female-female and male-male aggression were similar: intrasexual aggression increased with the OSR (female/male OSR for females and male/female OSR for males), consistent with predictions of mating-systems theory. A comparative analysis of our data and those from three other studies indicated that the rate of intrasexual aggression was greater in males than in females, but the patterns of intrasexual aggression were similar: the rate increased linearly and with a common slope with increasing OSR over a range of 0.4-3.
机译：我们比较了日本花aka（Oryzias latipes）的男女竞争模式，以响应工作性别比（OSR），一种性别的性活跃成员与异性的性活跃成员之比的变化。不出所料，男性比女性更倾向于求偶行为和性侵犯。但是，女性-男性和男性-男性侵略的总体模式是相似的：性别内侵略随着OSR的增加而增加（女性的女性/男性OSR和男性的男性/女性OSR），与交配系统理论的预测一致。对我们的数据与其他三项研究的数据进行对比分析，结果表明，男性的内向性攻击率高于女性，但内向性攻击的模式相似：速率呈线性增长，并且随着OSR的增加斜率呈共同斜率。范围为0.4-3。

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