Social network position predicts male mating success in a small passerine.
Social network position predicts male mating success in a small passerine.
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DOI：
10.1093/beheco/arab034
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发表时间：
2021-09
期刊：
影响因子：
--
通讯作者：
Kempenaers B
中科院分区：
文献类型：
--
作者：
Beck KB;Farine DR;Kempenaers B
个体与同种物的联系在数量和质量上是不同的。由此产生的个体在社会环境中所处位置的变化可以影响生命史的几个方面，包括繁殖。虽然越来越多的研究表明社会因素如何预测二元交配模式（谁将与谁繁殖），但人们对个人的社会地位如何影响其获得交配伴侣的总体可能性知之甚少。我们研究了一夫一妻制蓝山雀（Cyanistes caeruleus）的社会网络，以调查在繁殖前的几个月里，它们与异性同类的联系数量和强度、同性和异性联系的比例以及在社会群体之间移动的倾向是否会影响个体在获得1)繁殖伴侣和2)额外伴侣方面的成功。在控制了空间位置的差异之后，我们发现在社会群体之间频繁移动的雄性更有可能获得繁殖伴侣。此外，与更多雌性交配的成年雄性更有可能产生额外的后代。雌性同伴的数量也预测了熟悉的雌性繁殖邻居的比例，这表明邻居之间的熟悉可能会促进超配对的机会。在女性中，没有一个网络指标能显著预测获得繁殖伴侣或超配伴侣的可能性。我们的研究表明，雄性在繁殖前在其社会环境中的定位可以转化为未来的交配成功，为（超配）交配行为的研究增加了一个重要的新维度。个体社会性的差异会对适合度产生重要影响。利用社会网络分析，我们测试了个体社会地位的差异是否会影响个体在蓝山雀中获得交配伴侣的总体可能性。我们发现，经常在社会群体之间移动的雄性更有可能找到一个繁殖伴侣。此外，与更多雌性交配的成年雄性更有可能产生额外的后代。
Individuals differ in the quantity and quality of their associations with conspecifics. The resulting variation in the positions that individuals occupy within their social environment can affect several aspects of life history, including reproduction. While research increasingly shows how social factors can predict dyadic mating patterns (who will breed with whom), much less is known about how an individual’s social position affects its overall likelihood to acquire mating partner(s). We studied social networks of socially monogamous blue tits (Cyanistes caeruleus) to investigate whether the number and strength of connections to opposite-sex conspecifics, the ratio between same- and opposite-sex connections, and the tendency to move between social groups in the months prior to breeding affect individuals’ success in acquiring 1) a breeding partner and 2) an extrapair partner. After controlling for differences in spatial location, we show that males that moved more often between social groups were more likely to acquire a breeding partner. Moreover, adult males that associated with more females were more likely to sire extrapair young. The number of female associates also predicted the proportion of familiar female breeding neighbors, suggesting that familiarity among neighbors may facilitate opportunities for extrapair matings. In females, none of the network metrics significantly predicted the likelihood of acquiring a breeding or extrapair partner. Our study suggests that the positioning of males within their social environment prior to breeding can translate into future mating success, adding an important new dimension to studies of (extrapair) mating behavior. Differences in individual sociality can have important fitness consequences. Using social network analysis, we test whether differences in individual social position affect the overall likelihood of an individual to acquire mating partners in blue tits. We show that males that moved more often between social groups were more likely to acquire a breeding partner. Further, adult males that associated with more females were more likely to sire extrapair young.
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影响因子：
2.5
作者：
Aplin LM;Firth JA;Farine DR;Voelkl B;Crates RA;Culina A;Garroway CJ;Hinde CA;Kidd LR;Psorakis I;Milligan ND;Radersma R;Verhelst BL;Sheldon BC
通讯作者：
Sheldon BC
DOI：
10.1093/beheco/arab034
发表时间：
2021-09
期刊：
Behavioral ecology : official journal of the International Society for Behavioral Ecology
影响因子：
--
作者：
Beck KB;Farine DR;Kempenaers B
通讯作者：
Kempenaers B
影响因子：
2.4
作者：
Delhey, Kaspar;Peters, Anne;Kempenaers, Bart
通讯作者：
Kempenaers, Bart
DOI：
10.1098/rspb.2012.1591
发表时间：
2012-10-22
影响因子：
4.7
作者：
Aplin, L. M.;Farine, D. R.;Sheldon, B. C.
通讯作者：
Sheldon, B. C.
影响因子：
2.5
作者：
CAIRNS, SJ;SCHWAGER, SJ
通讯作者：
SCHWAGER, SJ