Behavioural phase change in the Australian plague locust, Chortoicetes terminifera, is triggered by tactile stimulation of the antennae
Behavioural phase change in the Australian plague locust, Chortoicetes terminifera, is triggered by tactile stimulation of the antennae
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DOI：
10.1016/j.jinsphys.2010.04.023
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发表时间：
2010-08-01
影响因子：
2.2
通讯作者：
Simpson, Stephen J.
中科院分区：
文献类型：
--
作者：
Cullen, Darron A.;Sword, Gregory A.;Simpson, Stephen J.
密度依赖性相位多型性是被称为蝗虫的并系群蝗虫的一个定义特征。与拥挤诱导行为聚集相关的线索和机制在沙漠蝗虫Schistocerca gregaria中得到了最好的理解，并涉及来自头部的感觉输入（视觉和嗅觉）和后腿的机械刺激的组合，通过胸神经节中血清素的短暂增加起作用。由于行为集群化显然已经独立出现多次在蝗科，重要的问题是，是否相同的机制已被招募的每一次。在这里，我们探讨了视觉，嗅觉和触觉刺激的作用，在澳大利亚蝗灾，Chortoicumberterminifera的行为集群化的诱导。我们发现，主要的gregarizing输入是触觉刺激的触角，没有证据的影响，视觉和嗅觉刺激或触觉刺激的后腿。我们的研究结果表明，收敛的行为反应，拥挤的发展采用不同的网站的感官输入在澳大利亚蝗灾和沙漠蝗虫。(C)2010爱思唯尔有限公司版权所有。
Density-dependent phase polyphenism is a defining characteristic of the paraphyletic group of acridid grasshoppers known as locusts. The cues and mechanisms associated with crowding that induce behavioural gregarization are best understood in the desert locust, Schistocerca gregaria, and involve a combination of sensory inputs from the head (visual and olfactory) and mechanostimulation of the hind legs, acting via a transient increase in serotonin in the thoracic ganglia. Since behavioural gregarization has apparently arisen independently multiple times within the Acrididae, the important question arises as to whether the same mechanisms have been recruited each time. Here we explored the roles of visual, olfactory and tactile stimulation in the induction of behavioural gregarization in the Australian plague locust, Chortoicetes terminifera. We show that the primary gregarizing input is tactile stimulation of the antennae, with no evidence for an effect of visual and olfactory stimulation or tactile stimulation of the hind legs. Our results show that convergent behavioural responses to crowding have evolved employing different sites of sensory input in the Australian plague locust and the desert locust. (C) 2010 Elsevier Ltd. All rights reserved.