The influence of male age on within-pair and extra-pair paternity in passerines
The influence of male age on within-pair and extra-pair paternity in passerines
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DOI：
10.1111/j.1474-919x.2011.01209.x
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发表时间：
2012-04-01
期刊：
影响因子：
2.1
通讯作者：
Nakagawa, Shinichi
中科院分区：
文献类型：
--
作者：
Cleasby, Ian R.;Nakagawa, Shinichi
尽管人们经常发现男性的年龄可以预测是否能成功获得额外的父权，但目前还不清楚这种获得是否与个人能否成功避免绿帽子有关。我们使用荟萃分析方法研究了男性年龄与雀形目动物的双内双外父权之间的关系。男性年龄与配偶外父权的成功之间存在正相关关系，但很少有证据表明男性年龄与配偶内父权之间存在关联。此外，雄性对内父权和雄性对外父权的效应量不显著相关。因此，预测能否成功获得额外的父权的因素，如男性年龄，不一定能预测能否成功避免绿帽子。
Although male age has often been found to predict success in gaining extra-pair paternity, it is unclear whether this gain is associated with an individuals success in avoiding cuckoldry. We examined the relationship between male age and both within- and extra-pair paternity in passerines using a meta-analytical approach. There was a positive correlation between male age and success in extra-pair paternity but little evidence for an association between male age and within-pair paternity. In addition, effect sizes for male within-pair paternity and male extra-pair paternity were not significantly correlated. Thus, factors that predict success in obtaining extra-pair paternity, such as male age, may not necessarily predict success in avoiding cuckoldry.