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大卫鼠耳蝠回声定位声波、翼型特征及夏季食性分析
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国家自然科学基金项目(No.30870371),东北师范大学国家大学生创新性实验计划项目(No.091020042)


Echolocation Calls, Wing Shape and Summer Diet of Myotis davidii
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    摘要:

    2005~2009年,野外采集大卫鼠耳蝠(Myotis davidii)的回声定位声波、翼型数据及粪便样本,分析了其回声定位声波、翼型特征和夏季食性。结果表明,大卫鼠耳蝠回声定位声波主频为(60.4±10.0) kHz (Mean±SD),带宽为(54.7±8.5)kHz,能率环为7.4%±3.5%;翼展比为6.2±0.8,翼载为(5.3±0.9)N/m2,翼尖指数为2.2±0.8;夏季食物主要以鞘翅目(57.7%,体积百分比)和双翅目(36.0%)昆虫为主。根据其回声定位声波、翼型特征及食性结果,推测大卫鼠耳蝠主要在相对复杂的森林生境中捕食。

    Abstract:

    From 2005 to 2009, we collected the samples of Myotis davidii’s echolocation calls, wing shape and faecal pellets, and analyzed the echolocation calls, wing shape and summer diet of an endemic Chinese bat, M.davidii. The results indicated that the peak frequency, bandwidth and duty cycle of echolocation calls is 60.4±10.0 kHz (Mean±SD), 54.7±8.5 kHz and 7.4%±3.5%, respectively. Aspect ratio, wing loading and tip shape index is 6.2±0.8, 5.3±0.9 N/m2 and 2.2±0.8, respectively. The summer diet of M.davidii is mainly consisted of the insects of Coleoptera (57.7%, volume percent) and Diptera (36.0%) insects from fecal analysis. Based on the analysis of echolocation calls, wing shape and summer diet, we speculate that M.davidii mainly probably forages in complex forest habitat.

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尹皓,林洪军,齐彤辉,张稳,冯江,施利民.2011.大卫鼠耳蝠回声定位声波、翼型特征及夏季食性分析.动物学杂志,46(6):34-39.

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  • 收稿日期:2011-06-06
  • 最后修改日期:2011-09-21
  • 在线发布日期: 2011-11-30
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