...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ethology >Does Gray Squirrel (Sciurus carolinensis) Response to Heterospecific Alarm Calls Depend on Familiarity or Acoustic Similarity?
【24h】

Does Gray Squirrel (Sciurus carolinensis) Response to Heterospecific Alarm Calls Depend on Familiarity or Acoustic Similarity?

机译：灰松鼠（Sciurus carolinensis）对异种警报的响应是否取决于熟悉度或声学相似性？

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In habitats in which multiple species are prey to the same predators, individuals can greatly benefit from recognizing information regarding predators that is provided by other species. Past studies have demonstrated that various mammals respond to familiar heterospecific alarm calls, but whether acoustic similarity to a familiar call can prompt a mammal's recognition of an unfamiliar call has yet to be shown. We presented alarm calls to free-ranging eastern gray squirrels (Sciurus carolinensis) and recorded behavioral changes in vigilance and antipredatory response. Playbacks included alarm calls of a sympatric bird (American robin, Turdus migratorius), an allopatric bird with a call structure similar to that of the robin (common blackbird, Turdus merula), and an allopatric bird with a distinct call structure (New Holland honeyeater, Phylidonyris novaehollandiae). Squirrels responded significantly more frequently to squirrel alarm calls (positive control) than to robin song (negative control) or honeyeater calls. Squirrel response to robin and blackbird alarm calls was statistically similar to their response to squirrel alarm calls, indicating that squirrels responded to those alarm calls as if they provided information about the presence of predators. However, squirrel response to robin song was not statistically different from response to any of the other avian calls, including the robin and blackbird alarms, suggesting that squirrels neither respond to blackbird alarms as if they clearly signify danger, nor as if they clearly do not signify danger, perhaps reflecting some ambiguity in interpretation of the calls. These results suggest that squirrel responses to alarm calls are generally based on call familiarity, but that acoustic similarity of an unfamiliar allopatric call to a familiar call also can elicit antipredator behavior. The lack of response to honeyeater alarm calls also supports the hypothesis that call recognition by gray squirrels is dependent on familiarity, rather than simply detection of an acoustic feature common to alarm calls across a variety of avian species.
机译：在多个物种被同一捕食者捕食的栖息地中，个人可以从其他物种提供的有关捕食者的信息中受益匪浅。过去的研究表明，各种哺乳动物会响应熟悉的异种警报呼叫，但是与熟悉的呼叫在声学上的相似性是否能够促使哺乳动物识别出陌生的呼叫尚未得到证实。我们向自由放养的东部灰松鼠（Sciurus carolinensis）发出了警报，并记录了警惕性和反掠夺性反应的行为变化。回放包括同伴鸟（美洲知更鸟，迁徙的Turdus migratorius），同音结构与知更鸟相似的异特异鸟（普通黑鸟，Turdus merula）和异响的异响鸟（New Holland honeyeater）发出警报声，Phylidonyris novaehollandiae）。松鼠对松鼠警报声（正控制）的反应比对知更鸟鸣叫（负控制）或食蜂鸟的响应更为频繁。松鼠对知更鸟和黑鸟警报电话的响应在统计上类似于它们对松鼠警报电话的响应，这表明松鼠对那些警报电话的响应就像它们提供了掠食性动物存在的信息一样。但是，松鼠对知更鸟的反应与对其他任何鸟类的鸣叫（包括知更鸟和黑鸟警报）的反应在统计学上没有差异，这表明松鼠既不对黑鸟警报做出响应，也不像它们清楚地表明有危险，或者对它们没有明显反应。表示危险，可能反映了通话解释中的一些歧义。这些结果表明，松鼠对警报呼叫的响应通常基于呼叫的熟悉度，但是，陌生的异声呼叫与熟悉的呼叫在声学上的相似性也可以引起反掠夺者的行为。对食蜂鸟警报呼叫缺乏响应也支持以下假设：灰松鼠的呼叫识别取决于熟悉程度，而不是简单地检测到各种鸟类警报呼叫共有的声学特征。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号