Male mate preferences in mutual mate choice: finches modulate their songs across and within male-female interactions.
Male mate preferences in mutual mate choice: finches modulate their songs across and within male-female interactions.
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雄性在相互择偶中的偏好：雀类在雌雄互动中调节它们的歌曲。
DOI：
10.1016/j.anbehav.2014.08.016
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发表时间：
2014
期刊：
影响因子：
2.5
通讯作者：
Prather,JonathanF
中科院分区：
文献类型：
--
作者：
Heinig,Abbie;Pant,Santosh;Dunning,Jeffery;Bass,Aaron;Coburn,Zachary;Prather,JonathanF
雄性鸣禽用歌声来宣传自己作为潜在伴侣的吸引力，而这些歌曲的特性对雌性的择偶偏好有很大的影响。一种观点认为，雄性在每首歌的表演中可能会最大限度地发挥自己的作用，这与雌性对配偶偏好的评价和形成是配偶选择的主要因素是一致的。另外，雄性可能会在不同的雌性面前不同程度地调节它们的鸣叫行为，这与雄性和雌性的配偶偏好一致，有助于相互选择配偶。在这里，我们考虑雄性孟加拉雀（lonchurastriatadhomestica）是否在雌性个体的水平上表达配偶偏好，以及这些偏好是否表现为歌声行为的变化，足以影响雌性的配偶选择。我们通过记录单个未交配的雄性在与许多未交配的雌性进行一系列1小时的互动时所唱的歌曲来测试这个想法。在整个录音过程中，男性系统地改变了他们对不同女性演唱的歌曲的数量和质量。在每次互动的过程中，雄鸟也会改变它们的鸣叫特征，对雌鸟进行的行为测试显示，在每次互动开始时发出的歌声明显比同一只雄鸟在随后的同一次互动中发出的歌声更具吸引力。这一研究表明，雄性生殖信号的特性在不同的环境中存在差异，而这种差异在塑造雌性择偶偏好中所起的作用表明，雄性择偶偏好在该物种的相互择偶中起着重要作用。因为这些鸟在实验室里生长得很好，而且很容易被几代人的观察和实验所接受，这些结果产生了一个新的模型系统，它可能会被证明在解释雄性和雌性择偶偏好在形成相互择偶及其长期利益或后果中的作用方面特别有利。
Male songbirds use song to advertise their attractiveness as potential mates, and the properties of those songs have a powerful influence on female mate preferences. One idea is that males may exert themselves maximally in each song performance, consistent with female evaluation and formation of mate preferences being the primary contributors to mate choice. Alternatively, males may modulate their song behaviour to different degrees in the presence of different females, consistent with both male and female mate preferences contributing to mutual mate choice. Here we consider whether male Bengalese finches,Lonchurastriatadomestica, express mate preferences at the level of individual females, and whether those preferences are manifest as changes in song behaviour that are sufficient to influence female mate choice. We tested this idea by recording songs performed by individual unmated males during a series of 1 h interactions with each of many unmated females. Across recording sessions, males systematically varied both the quantity and the quality of the songs that they performed to different females. Males also varied their song properties throughout the course of each interaction, and behavioural tests using female birds revealed that songs performed at the onset of each interaction were significantly more attractive than songs performed by the same male later during the same interaction. This demonstration of context-specific variation in the properties of male reproductive signals and a role for that variation in shaping female mate preference reveals that male mate preferences play an important role in mutual mate choice in this species. Because these birds thrive so well in the laboratory and are so amenable to observation and experimentation across generations, these results yield a new model system that may prove especially advantageous in disentangling the role of male and female mate preferences in shaping mutual mate choice and its long-term benefits or consequences.