Personality-specific carry-over effects on breeding.
Personality-specific carry-over effects on breeding.
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个性对繁殖的影响。
DOI：
10.1098/rspb.2020.2381
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发表时间：
2020-12-09
期刊：
影响因子：
--
通讯作者：
Patrick SC
中科院分区：
文献类型：
--
作者：
Harris SM;Descamps S;Sneddon LU;Cairo M;Bertrand P;Patrick SC
残留效应描述了动物先前的状况影响其随后表现的现象。携带效应不太可能均匀地影响个体，但调节其强度的因素知之甚少。延续效应强度的变化可能反映了生活节奏的个体差异：慢节奏、害羞的个体被认为更倾向于分配自我维持而不是当前的繁殖，而他们的快节奏、大胆的行为则是同类（生活节奏综合征假说）。因此，可检测到的结转对育种的影响应该是较弱的大胆的个人，因为他们应该保持分配到繁殖，无论以前的条件，而害羞的个人应该经历更强的结转效应。我们在斯瓦尔巴特群岛的黑腿三趾鸥繁殖中测试了这一预测。使用微型生物记录设备，我们测量了三趾鸥的非繁殖活动，并监测其随后的繁殖性能。我们报告了一些负面的结转影响的非繁殖活动的繁殖，这是一般较强的害羞的个人：更活跃的冬季，其次是后期繁殖物候和繁殖性能较差害羞的鸟类，但这些影响较弱或未被发现在大胆的个人。我们的研究量化了携带效应对繁殖的影响强度的个体变异性，并提供了一种解释个体繁殖成功的广泛差异的机制。
Carry-over effects describe the phenomenon whereby an animal's previous conditions influence its subsequent performance. Carry-over effects are unlikely to affect individuals uniformly, but the factors modulating their strength are poorly known. Variation in the strength of carry-over effects may reflect individual differences in pace-of-life: slow-paced, shyly behaved individuals are thought to favour an allocation to self-maintenance over current reproduction, compared to their fast-paced, boldly behaved conspecifics (the pace-of-life syndrome hypothesis). Therefore, detectable carry-over effects on breeding should be weaker in bolder individuals, as they should maintain an allocation to reproduction irrespective of previous conditions, while shy individuals should experience stronger carry-over effects. We tested this prediction in black-legged kittiwakes breeding in Svalbard. Using miniature biologging devices, we measured non-breeding activity of kittiwakes and monitored their subsequent breeding performance. We report a number of negative carry-over effects of non-breeding activity on breeding, which were generally stronger in shyer individuals: more active winters were followed by later breeding phenology and poorer breeding performance in shy birds, but these effects were weaker or undetected in bolder individuals. Our study quantifies individual variability in the strength of carry-over effects on breeding and provides a mechanism explaining widespread differences in individual reproductive success.
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