Sex discrimination and roostmate recognition by olfactory cues in the African bats, Mops condylurus and Chaerephon pumilus (Chiroptera: Molossidae)
Sex discrimination and roostmate recognition by olfactory cues in the African bats, Mops condylurus and Chaerephon pumilus (Chiroptera: Molossidae)
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DOI：
10.1017/s0952836901000607
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发表时间：
2001-05-01
影响因子：
2
通讯作者：
Bouchard, S
中科院分区：
文献类型：
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作者：
Bouchard, S
两种非洲食虫蝙蝠（安哥拉无尾拖把condylurus和小无尾Chaerephon pumilus）区分男性和女性和陌生人的气味选择实验的能力进行了测试。M. condylurus和雄性C. pumilus区分性别的基础上收集的气味，从耳间和口吻腺区，而女性C。pumilus在两个试验中都没有表现出任何偏好。女性M.来自中等规模群体（约200-600个体）的condylurus将雌性栖息伴侣与陌生人区分开来。有一些迹象表明，roostmate识别可能与测试主题的殖民地大小成反比，这表明识别是基于个体的，但需要进一步的研究来确定是否如此。组织学研究表明，耳间区和口吻区含有皮脂腺，腺组织的数量在两个物种的耳间区是性二型的，男性有更多的组织，但不是口吻区。用扫描电镜观察到，在两种性别的M的耳间区也有骨突蛋白存在。condylurus和雄性C. pumilus。它们的存在和与皮脂腺的联系，以及气味选择实验的结果，都是这些蝙蝠使用化学信号（可能是信息素）的间接证据。
The ability of two species of African insectivorous bats (Angola free-tailed Mops condylurus and little free-tailed Chaerephon pumilus) to distinguish between males and females and roostmates from strangers in scent-choice experiments was tested. Both sexes of M. condylurus and male C. pumilus discriminated between sexes based on odours collected from the interaural and muzzle glandular areas, whereas female C. pumilus did not show any preference in either trials. Female M. condylurus from intermediate sized colonies (c, 200-600 individuals) distinguished female roostmates from strangers. There is some indication that roostmate recognition may vary inversely with the colony size of the test-subject suggesting that recognition is individually based, but further studies are necessary to determine if this is so. Histological work revealed that the interaural and muzzle area contain sebaceous glands and that the quantity of the glandular tissue is sexually dimorphic in both species for the interaural area, with males having more tissue, but not for the muzzle area. The presence of osmetrichia using SEM was also observed in the interaural area of both sexes of M. condylurus and in male C. pumilus. Their presence and association with sebaceous glands, as well as the results of the scent-choice experiments are indirect evidences of use of chemical signals, possibly pheromones, by these bats.