Behavioral responses to echolocation calls from sympatric heterospecific bats: implications for interspecific competition
Behavioral responses to echolocation calls from sympatric heterospecific bats: implications for interspecific competition
复制标题
对同域异种蝙蝠回声定位呼叫的行为反应：对种间竞争的影响
DOI：
10.1007/s00265-013-1680-9
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发表时间：
2014-04-01
影响因子：
2.3
通讯作者：
Feng, Jiang
中科院分区：
文献类型：
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作者：
Li, Yuanyuan;Wang, Jing;Feng, Jiang
相互识别是物种共存的产物，直接影响着动物的生存和繁殖。蝙蝠能够区分同域不同的异性之间的基础上，他们的回声定位呼叫，这已被证明在自由飞行和圈养蝙蝠。然而，迄今为止，可能决定蝙蝠的回声定位呼叫同域异种的行为反应的因素很少被测试，特别是在良好的控制条件下圈养蝙蝠。因此，我们的目的是解决这个问题，通过播放实验（习惯disabituation）与三个马蹄蝙蝠物种内的恒定频率的蝙蝠公会，其中包括大耳马蹄蝙蝠（菊头蝠macrotis），布莱斯的马蹄蝙蝠（菊头蝠lepidus），和中国的马蹄蝙蝠（中华菊头蝠）。我们研究了这三个物种对同种回声定位叫声、对其他两个物种以及另一种异种蝙蝠斯托利茨卡三叉戟蝙蝠（Asellisus stoliczkanus）的行为反应，斯托利茨卡三叉戟蝙蝠也属于该协会。我们发现，这三种蝗虫表现出一系列不同的行为，以异种回声定位，但很少同种呼叫习惯后，这表明他们可能已经能够区分同域异种回声定位呼叫的同种。有趣的是，对异种呼唤的行为反应与营养生态位的种间重叠指数呈正相关，而呼唤设计只有很小的影响。这意味着，这些蝙蝠的行为反应，异种回声定位呼叫可能与种间的食物竞争的程度。
Mutual recognition is the product of species coexistence, and has direct effects on survival and reproduction of animals. Bats are able to discriminate between sympatric different heterospecifics based on their echolocation calls, which has been shown both in free-flying and captive bats. To date, however, the factors that may determine the behavioral responses of bats to echolocation calls from sympatric heterospecifics have rarely been tested, especially under well-controlled conditions in captive bats. Hence, we aimed at tackling this question by performing playback experiments (habituation–dishabituation) with three horseshoe bat species within the constant-frequency bat guild, which included big-eared horseshoe bats (Rhinolophus macrotis), Blyth’s horseshoe bats (Rhinolophus lepidus), and Chinese horseshoe bats (Rhinolophus sinicus). We studied the behavioral responses of these three species to echolocation calls of conspecifics, to other two species, and to another heterospecifics bat, Stoliczka’s trident bat (Asellisus stoliczkanus), which also belongs to this guild. We found that the three rhinolophid species displayed a series of distinct behaviors to heterospecific echolocation but few to conspecific calls after habituation, suggesting that they may have been able to discriminate sympatric heterospecific echolocation calls from those of conspecifics. Interestingly, the behavioral responses to heterospecific calls were positively correlated with the interspecific overlap index in trophic niche, whereas call design had only a minor effect. This implies that the behavioral responses of these bats to heterospecific echolocation calls may be related to the degree of interspecific food competition.