Beauty alone is insufficient: female mate choice in the barn swallow
Beauty alone is insufficient: female mate choice in the barn swallow
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DOI：
10.1007/s11284-017-1527-3
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发表时间：
2018-01-01
影响因子：
2
通讯作者：
Hasegawa, Masaru
中科院分区：
文献类型：
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作者：
Hasegawa, Masaru
谷仓燕子，Hirundo rustica，是研究性选择，特别是雌性配偶选择的模式物种。虽然已经有几篇关于雌性伴侣选择及其在该物种中的地理变异的评论，但所有的评论都集中在第二性特征上。在这里，为了更好地理解雌性配偶选择的一般模式及其对雄性表型的影响，我回顾了谷仓燕子中已报道的所有雌性配偶选择标准，强调了相对不明显的雄性特征的重要性。这些资源包括由男性保护或提供的资源，如领土和父亲的投资。此外，雌性更喜欢雏鸟般的叫声，引诱叫声，这一点特别值得注意，因为雌性更喜欢不成熟的叫声。这种模式与基于第二性征的女性选择形成对比，在第二性特征中，更成熟、更精细的男性特征几乎总是受到青睐。类似雏鸟的雄性特征普遍存在，因此雌性对成熟形式的回避而不是偏爱可能是很常见的。除了对目标性状本身的选择外，由于雄性目标性状和雌性配偶偏好之间的相互关系，这些资源和类似雏鸟的雄性性状也将对理解整个雄性表型的进化及其地理变异起到重要作用。雌性对不明显特征的偏好高度依赖于生态因素，如巢的捕食压力，因此包括第二性征在内的整个雄性表型可能比之前认为的更可预测。未来的研究不仅应该关注明显的第二性特征，而且应该关注不明显的男性特征。
The barn swallow, Hirundo rustica, is a model species for studying sexual selection, particularly female mate choice. Although there have already been several reviews of female mate choice and its geographic variation in this species, all of them have focused on secondary sexual characteristics. Here, for better understanding of the general pattern of female mate choice and their influence on male phenotype, I review all of the female mate choice criteria ever reported in the barn swallow, emphasizing the importance of relatively inconspicuous male traits. These include resources defended or provided by males, such as territory and paternal investment. In addition, females prefer a nestling-like vocalization, enticement call, which is particularly noteworthy because females prefer immature calls. This pattern contrasts with female choice based on secondary sexual characteristics, in which more mature, elaborate male traits are almost always favored. Nestling-like male traits are widespread, and thus female avoidance of, rather than preference for, mature forms might be common. In addition to selection on the target trait itself, these resources and nestling-like male traits would also matter in understanding the evolution of the overall male phenotype and its geographic variation, due to the interrelationships among male target traits and those among female mate preferences. Female preferences for inconspicuous traits are highly dependent on ecological factors such as nest predation pressure, and thus overall male phenotype including secondary sexual characteristics might be more predictable than previously thought. Future studies should focus on not only conspicuous secondary sexual characteristics but inconspicuous male traits.