Condition-Dependent Choosiness For Highly Attractive Songs In Female Canaries
Condition-Dependent Choosiness For Highly Attractive Songs In Female Canaries
复制标题
雌性金丝雀对高吸引力歌曲的条件依赖性选择
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
L. Nagle
中科院分区：
文献类型：
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作者：
Alexandre Lerch;Lauriane Rat;L. Nagle
动物的伴侣选择是在性内和性间选择的影响下进化而来的。即使女性之间的共识往往是观察到一些男性，某些女性可以大大改变他们的交配决定。不同的条件，如早期学习，择偶复制，先前的经验或微妙的内在因素可以干扰的决定。其中之一是女性在选择时的身体状况。在本实验中，雌性金丝雀Serinus canaria的飞羽被切断，从而降低其飞行能力。在飞行室中短暂停留后，向这些雌性动物播放两种含有不同节奏的测试“A”短语（每秒16个音节与8个音节）的人工歌曲。众所周知，只有克里思快的A短语才能引起女性的高水平性反应。通过计算交配请求显示（CSD）的数量来评估女性偏好。结果表明，在这两个（正常和身体减少）的条件下，女性更喜欢歌曲包含A16短语。然而，这种偏好的强度在身体状况不佳的雌性中低于对照组的雌性，这表明身体状况不佳的雌性中的选择性降低。
Partner choice in animals has evolved under the effects of intra- and inter-sexual selection. Even if a consensus between females is often observed towards some males, certain females can drastically change their mating decision. Different conditions such as early learning, mate-choice copying, prior experience or subtle intrinsic factors can interfere with the decision. One of them is body condition of the females at the time of choosing. In this experiment, the flight feathers of female canaries Serinus canaria were cut, thus decreasing their flight ability. After a short period in a flight room, two types of artificial songs containing different tempi of the test ‘A’ phrase (16 vs. 8 syllables per second) were played to these females. It is known that only A phrases with a high tempo provoke a high level of sexual response in females. Female preference was evaluated by counting the number of Copulation Solicitation Displays (CSDs). The results show that, in both (normal and physically reduced) conditions, females prefer songs containing an A16 phrase. However, the strength of this preference is lower in females with compromised body condition than in females from the control group, suggesting a decreased choosiness in the poor body condition females.