Similar is not the same: Social calls of conspecifics are more effective in attracting wild bats to day roosts than those of other bat species
Similar is not the same: Social calls of conspecifics are more effective in attracting wild bats to day roosts than those of other bat species
复制标题
相似但不一样：同种蝙蝠的社交呼唤比其他蝙蝠物种更能有效地吸引野生蝙蝠到日间栖息地
DOI：
10.1007/s00265-010-1019-8
复制
发表时间：
2010
影响因子：
2.3
通讯作者：
G. Kerth
中科院分区：
文献类型：
--
作者：
Caroline R. Schöner;Michael G. Schöner;G. Kerth
许多蝙蝠物种需要定期寻找新的栖息地，因为它们在每个繁殖季节都需要大量的庇护所。研究表明，蝙蝠在群体成员之间交换有关栖息地的信息，并使用回声定位和同种的社会呼叫来寻找栖息地。然而，目前尚不清楚野生蝙蝠在寻找栖息地时是否会区分同种蝙蝠和其他蝙蝠物种的社交叫声。此外，蝙蝠被这两种叫声吸引到潜在栖息地的程度是未知的。我们提出了一个现场实验表明，同种和其他蝙蝠物种的社会呼吁都吸引蝙蝠栖息。在两个夏天，我们播放了社会呼吁贝希斯坦的蝙蝠（鼠耳蝠bechsteinii）和纳特勒的蝙蝠（鼠耳蝠nattereri）从不同的蝙蝠箱，可以作为这些物种的栖息地。所有的实验蝙蝠箱都用红外视频监控，以识别接近的蝙蝠种类。3种（M. bechsteinii，M. nattereri和Plecotusauritus）在播放蝙蝠叫声的夜晚比没有播放的夜晚更频繁地接近盒子。贝希斯坦的蝙蝠和纳特勒的蝙蝠都更吸引社会呼吁同种比其他物种，而P. auritus并没有歧视呼叫的任何鼠耳蝠物种。只有贝希斯坦的蝙蝠进入实验箱，而且只有在同种蝙蝠发出叫声的时候才会进入。我们的研究结果表明，野生蝙蝠区分社会呼吁同种和其他蝙蝠物种，虽然他们响应这两种呼叫类型时，寻找新的栖息地。
Many bat species regularly need to find new day roosts as they require numerous shelters each breeding season. It has been shown that bats exchange information about roosts among colony members, and use echolocation and social calls of conspecifics in order to find roosts. However, it is unclear if wild bats discriminate between social calls of conspecifics and other bat species while searching for roosts. Furthermore, the extent that bats are attracted to potential roosts by each of these two call types is unknown. We present a field experiment showing that social calls of conspecifics and other bat species both attract bats to roosts. During two summers, we played back social calls of Bechstein’s bats (Myotis bechsteinii) and Natterer’s bats (Myotis nattereri) from different bat boxes that can serve as roosts for these species. All experimental bat boxes were monitored with infrared video to identify the approaching bat species. Three species (M. bechsteinii, M. nattereri, and Plecotus auritus) approached the boxes significantly more often during nights when bat calls were played compared to nights without playbacks. Bechstein’s bats and Natterer’s bats were both more attracted to social calls of conspecifics than of the other species, whereas P. auritus did not discriminate between calls of either Myotis species. Only Bechstein’s bats entered experimental boxes and only at times when calls from conspecifics were played. Our findings show that wild bats discriminate between social calls of conspecifics and other bat species although they respond to both call types when searching for new roosts.