Ontogeny of sexually dimorphic distance calls in bengalese finches (Lonchura domestica)
Ontogeny of sexually dimorphic distance calls in bengalese finches (Lonchura domestica)
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孟加拉雀（Lonchura Domestica）性别二态性距离呼叫的个体发育
DOI：
10.1007/bf02350206
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发表时间：
1991
影响因子：
0.9
通讯作者：
K. Okanoya
中科院分区：
文献类型：
--
作者：
Tomoko Yoneda;K. Okanoya
成年孟加拉雀发出性二形距离呼叫，用于在视觉上分开时定位彼此。成年雌性的距离呼叫是调幅的，而成年雄性的距离呼叫则不是调幅的。我们研究了在这些电话性别分化的个体发育。50日龄前，男性和女性发出调幅，女性型的距离呼叫。第55天后，少年男性开始发出成年男性类型的距离呼叫，没有调幅，而女性继续发出调幅的距离呼叫。在男性中，过渡期正好与亚歌的发病。这些结果表明，在孟加拉雀远距离呼叫的性二型涉及激素和发育过程。
Adult Bengalcse finches emit sexually dimorphic distance calls which are used to locate each other when visually separated. Distance calls of adult females are amplitude modulated while those of adult males are not. We studied the ontogeny of sexual differentiation in these calls. Before 50 days of age, both males and females emitted amplitude modulated, female-type distance calls. After day 55, juvenile males began to emit adult-male type distance calls which were not amplitude modulated, whereas females continued to emit amplitude modulated distance calls. In males, the transitional period coincided with the onset of subsongs. These results suggest that the sexual dimorphism of the distance calls in Bengalese finches involves hormonal and developmental processes.