Adaptive hypotheses for protandry in arrival to breeding areas: a review of models and empirical tests
Adaptive hypotheses for protandry in arrival to breeding areas: a review of models and empirical tests
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到达繁殖区的早熟的适应性假设：模型和实证检验的回顾
DOI：
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发表时间：
2012
影响因子：
1.3
通讯作者：
Francisco Pulido
中科院分区：
文献类型：
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作者：
Y. E. Morbey;Timothy Coppack;Francisco Pulido
我们对鸟类迁徙的理解已经取得了显着进展，但有利于雄性先于雌性到达繁殖地的选择性条件仍然很大程度上不清楚。在这里，我们回顾了先祖遗传的主要适应性假设，重点介绍了一些检验先祖理论的关键实证研究，并确定了理论和经验信息需求。一般来说，如果雄性相对于日历日期提前到达的成本（生存选择）可以通过增加交配机会（性选择）来平衡，那么雄性繁殖成功率差异大于雌性的物种中应该会进化出先祖性。雄性提前到达可以提供有助于垄断资源的“优先福利”，或增加额外配对交配机会的“早鸟抽奖福利”。虽然一些实证研究与影响早熟的重要选择因素（例如外在死亡率和外对亲子关系）的理论预测一致，但有些研究则不然，有些研究关注的是理论尚未明确考虑的生态因素。我们呼吁采用综合的理论方法来帮助正式确定先祖遗传应如何演变，以应对自然选择和性选择的对抗作用、男性或女性之间竞争不对称的本质、提前到来的特定性别成本和收益以及各种气候变化情景。
Our understanding of avian migration has progressed significantly, yet the selective conditions that favor the arrival of males before females at the site of reproduction remain largely unclear. Here, we review the leading adaptive hypotheses for protandry, highlight some key empirical studies that test protandry theory, and identify theoretical and empirical information demands. In general, protandry should evolve in species where the variance in male reproductive success is larger than in females if the costs to males of earlier arrival relative to calendar date (viability selection) can be balanced by increased mating opportunities (sexual selection). Early arrival by males can provide ‘priority benefits’ that help in the monopolization of resources or ‘early bird draw benefits’ that increase opportunities for extra-pair mating. While some empirical studies are consistent with theoretical predictions regarding the important selection factors that influence protandry (e.g., extrinsic mortality and extra-pair paternity), some are not, and some studies focus on ecological factors that have not been considered explicitly by theory. We call for an integrated theoretical approach to help formalize how protandry should evolve in response to the antagonistic roles of natural and sexual selection, the nature of competitive asymmetries among males or females, sex-specific costs and benefits of early arrival, and various climate change scenarios.