SEXUAL-RESPONSE OF FEMALE YELLOWHAMMERS TO DIFFERENCES IN REGIONAL SONG DIALECTS AND REPERTOIRE SIZES
SEXUAL-RESPONSE OF FEMALE YELLOWHAMMERS TO DIFFERENCES IN REGIONAL SONG DIALECTS AND REPERTOIRE SIZES
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DOI：
10.1016/s0003-3472(87)80263-4
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发表时间：
1987-04-01
期刊：
影响因子：
2.5
通讯作者：
ESPMARK, YO
中科院分区：
文献类型：
--
作者：
BAKER, MC;BJERKE, TK;ESPMARK, YO
雌性黄鹛（Emberiza citrinella）是一种常见的欧亚鸣禽，在实验室中测试了它们对两种不同方言的雄性歌曲和三种不同曲目大小（一到三）的性反应。在第一个实验中，雌性在使用挪威方言时比使用丹麦方言时表现出更多的交配表现。这两种方言也出现在邻近的人群中。这一结果与自然种群中雌性与说自己方言的雄性进行选型交配的假设是一致的。先前对黄鹛的研究提出了对选型交配的适应性解释。在第二个实验中，与播放单一歌曲类型相比，当播放两种或三种歌曲类型时，雌性会做出明显更多的交配请求表现。这一结果与性选择参与了鸣禽能力增强的进化这一假设是一致的。
Female yellowhammers, Emberiza citrinella, a common Eurasian songbird, were tested in the laboratory for their sexual response to male songs from two different dialects and to three different repertoire sizes (one-three). In the first experiment, the females responded with significantly more copulation solicitation displays when played their home dialect from Norway than when played a dialect from Denmark. These two dialects also occur in adjacent populations. This result is consistent with the hypothesis that females mate assortatively with males of the their own dialect in natural populations. Previous work on yellowhammers suggested an adaptive explanation for assortative mating. In the second experiment, the females responded with significantly more copulation solicitation displays when played a repertoire of two or three song types than when played a single song type. This result is consistent with the hypothesis that sexual selection has been involved in the evolution of enhanced repertoire size in songbirds.