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Position: Home > Articles > Swimming behavior of the aquatic larva of Neoneuromus ignobilis(Megaloptera:Corydalidae:Corydalinae) Acta Entomologica Sinica 2012,55 (1) 133-138

普通齿蛉幼虫的游泳行为(英文)

作者：

曹成全;刘志伟;陈申芝;童超

单位：

Department of Biological Sciences;乐山师范学院化学与生命科学学院;Eastern Illinois University

关键词：

广翅目;普通齿蛉;水生昆虫;幼虫;游泳行为;游泳姿势

摘要：

为了探究广翅目昆虫幼虫在水中的游泳能力,以丰富其水生习性的行为学资料,选取中国特有种普通齿蛉Neoneuromus ignobilis幼虫为研究对象,通过室内试验对其游泳的姿势、刺激因素、不同龄期游泳能力及在外界刺激下的游泳行为进行了观察和测定。结果表明:普通齿蛉幼虫有垂直、平行、仰面和侧面等4种游泳姿势,出现的频率分别为89.08%,5.49%,4.40%和0.61%。游泳时身体呈不同程度的"S"形,利用头部和尾部方向的改变实现虫体的上升、下沉和游泳姿势的改变。普通齿蛉幼虫利用身体的摆动游泳,游泳时3对足以固定的姿势靠紧身体。不同龄期的幼虫游泳能力差异很大,6龄幼虫的游泳能力远强于2龄和末龄幼虫。在游泳时,普通齿蛉幼虫还具有比较复杂和独特的防御行为,如其腹部末端会喷射出化学物质。据此认为,普通齿蛉拥有较强的游泳能力,有助于其逃生和防御。

译名：

Swimming behavior of the aquatic larva of Neoneuromus ignobilis(Megaloptera:Corydalidae:Corydalinae)

作者：

CAO Cheng-Quan1,*,LIU Zhi-Wei2,CHEN Shen-Zhi1,TONG Chao1(1.College of Chemistry and Life Sciences,Leshan Teachers University,Leshan,Sichuan 614000,China;2.Department of Biological Sciences,Eastern Illinois University,Charleston,Illinois 61920,USA)

关键词：

Megaloptera;Neoneuromus ignobilis;aquatic insect;larva;swimming behavior;swimming posture

摘要：

In order to explore the pattern and significance of swimming,through photos and videos we observed and recorded the swimming behavior of the aquatic larvae of Megaloptera in detail for the first time using the endemic Chinese species Neoneuromus ignobilis Navás,1932 as the test insect,which were collected from the Dadu River and reared in nature-simulated environments.Four swimming postures are recognized and described herein in detail,i.e.,vertical,parallel,back and side swimming,and these postures were used by the larvae disproportionately,with a frequency of 89.08%,5.49%,4.40% and 0.61%,respectively.The swimming larvae tend to pose their body into an S-shape,with various degree of sinuation.By changing the directions of the head and tail,they can easily rise up or sink and change swimming postures.The propulsion was generated by the wriggling of the body while the legs were mostly held close to the body.Larvae of different instars varied greatly in swimming ability,the 6th instar larvae being the best and most active swimmer compared to the 2nd and final instars.The larvae may also employ complex defense behaviors not often known from relatively ancient insect groups,like chemical defense as secretion from the end of abdomen.

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普通齿蛉幼虫的游泳行为(英文)

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