Avoidance of conspecific odour by carabid beetles: a mechanism for the emergence of scale-free searching patterns
Avoidance of conspecific odour by carabid beetles: a mechanism for the emergence of scale-free searching patterns
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DOI：
10.1016/j.anbehav.2008.04.004
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发表时间：
2008-09-01
期刊：
影响因子：
2.5
通讯作者：
Reynolds, Andrew M.
中科院分区：
文献类型：
--
作者：
Guy, Adam G.;Bohan, David A.;Reynolds, Andrew M.
我们监测了一种饥饿的模型捕食者--步枪甲虫Pterostichus Blackarius在装有甲虫以前走过的试纸和未暴露的对照试纸的竞技场中的活动。值得注意的是，甲虫聚集在未暴露的对照上，表明同种回避(即旨在避开先前由同一物种的个体穿越的地点的行为)。这一发现是新的和重要的，因为稀疏和随机分布的猎物资源的位置的最佳Levy-fiight(无尺度)搜索模式可以从同种回避中产生。这一发现可能解释了随机行走(有限尺度)模型在用于预测大规模移动和搜索模式时的缺陷，该模型是通过从小尺度的观测进行外推来预测的。(C)2008年动物行为研究协会。爱思唯尔有限公司出版。保留所有权利。
We monitored the movements of a starved model predator, the carabid beetle Pterostichus melanarius, in arenas containing test papers upon which beetles had previously walked and unexposed control papers. Significantly, beetles accumulated on the unexposed controls, indicating conspecific avoidance (i. e. behaviour designed to avoid locations previously traversed by individuals of the same species). This finding is novel and important because optimal Levy-fiight (scale-free) search patterns for the location of sparsely and randomly distributed prey resources can emerge from conspecific avoidance. This finding may account for the shortcomings of random-walk (scale-finite) models when used to predict large-scale movement and search patterns by extrapolating from observations made at small scales. (C) 2008 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.