Storage and display of odour by male Saccopteryx bilineata (Chiroptera, Emballonuridae)
Storage and display of odour by male Saccopteryx bilineata (Chiroptera, Emballonuridae)
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雄性 Saccopteryx bilineata（翼手目，Emballonuridae）气味的储存和展示
DOI：
10.1007/s002650050646
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发表时间：
1999
影响因子：
2.3
通讯作者：
O. Helversen
中科院分区：
文献类型：
--
作者：
Christian C. Voigt;O. Helversen
摘要：囊翅蝠（sacopteryx bilineata）的雄性会主动将生殖区域、腺体、尿液和唾液的分泌物填满它们的生殖囊。根据我们和Starck的观察，我们推断，S. bilineata的繁殖囊不具有腺体功能，而是用于储存和展示气味的器官。除了已知的雄性双翅瓢虫的“腌制”和悬停行为外，我们还详细描述了在复杂的、刻板的悬停展示中，气味是如何被扇到栖息的个体身上的。雄鸟也会用翅尖将唾液涂在背部的皮毛上，并可能用气味标记领地边界。“打哈欠”可能是一种视觉和嗅觉暗示。气味似乎在S. bilineata和其他气囊类动物的社会交流中起着重要作用，这是由该科广泛分布的翅囊所揭示的。雄蜂在雌蜂面前盘旋飞行时，会散发出气味。我们证明了悬停显示器的数量随着后宫尺寸的增加而增加。双头莲雄性的交配努力包括一种多模式的信号行为。虽然雄性保护着雌性聚集的后宫领地，但雌性似乎能够在一个群体的雄性中自由选择后代的父亲。这可能导致了雄性S. bilineata复杂的交配表现的进化。
Abstract Males of the sac-winged bat, Saccopteryx bilineata, actively fill their propatagial sacs with secretions from the genital region, the gular gland, urine and saliva. From our observations and those of Starck we deduce that propatagial sacs in S. bilineata do not have a glandular function, but are instead organs for the storage and display of odours. In addition to the already known “salting” and hovering behaviour of male S. bilineata, we describe in detail how odour is fanned to roosting individuals during the complex, stereotypic hovering displays. S. bilineata males also coat the fur of their backs with saliva using the wing tip and might scent-mark territory boundaries. “Yawning” may represent a visual as well as an olfactory cue. Odour seems to play an important role in the social communication of S. bilineata and in other emballonurids, as revealed by the broad distribution of wing sacs in this family. S. bilineata males display odour during energetically costly hovering flights in front of females. We demonstrate that the number of hovering displays increases with harem size. The mating effort of S. bilineata males comprises a multimodal signalling behaviour. Although males defend harem territories in which females gather, females seem to be able to choose the father of their progeny freely among the males of a colony. This may have led to the evolution of the complex mating displays by male S. bilineata.