Male and Female White-crowned Sparrows Respond Differently to Geographic Variation in Song
Male and Female White-crowned Sparrows Respond Differently to Geographic Variation in Song
复制标题
雄性和雌性白冠麻雀对鸣叫的地理变化有不同的反应
DOI：
10.1163/156853904772746600
复制
发表时间：
2004
期刊：
影响因子：
1.3
通讯作者：
J. Soha
中科院分区：
文献类型：
--
作者：
D. A. Nelson;J. Soha
鸟类的鸣叫因物种和地理区域而异，回放实验中有大量证据表明，雄性和雌性鸟类对鸣叫结构的这些差异都很敏感。性别之间的比较因每种性别所使用的行为测定的差异而变得复杂：男性通常在现场（即在自然环境中）进行测试，而女性通常在实验室中接受激素治疗。我们对雄性和雌性白冠麻雀在其领地内进行了现场回放实验，看看它们在歌曲之间是否做出了类似的区分。在我们暂时将雌性的配偶移出其领地后，雌性对同种歌曲播放的反应明显多于异种歌曲的接近和叫声。女性对当地方言的反应与对包含外国方言短语的歌曲的反应相同。相比之下，男性对包含外国方言短语的歌曲的反应明显弱于对当地方言的反应。我们讨论了为什么我们的结果与之前的研究相冲突的原因，之前的研究发现女性对歌曲的反应比男性更有选择性。
Bird song varies both between species and across geographic areas, and there is abundant evidence from playback experiments that both male and female birds are sensitive to these differences in song structure. Comparisons between the sexes are complicated by differences in the behavioral assays used for each sex: males are often tested in the field, i.e. in a natural setting, and females usually in the laboratory with hormone treatment. We performed a field playback experiment to male and female white-crowned sparrows on their territories to see if they made similar distinctions between songs. After we temporarily removed the females' mates from their territories, females approached and called significantly more in response to playback of conspecific song than to heterospecific song. Females gave the same responses to the local dialect as they did to songs containing phrases from a foreign dialect. In contrast, males gave significantly weaker responses to songs containing a phrase from a foreign dialect than they did to the local dialect. We discuss reasons why our results conflict with previous studies that found that females are more selective in responding to song than are males.