Manipulations of signalling environment affect male competitive success in three-spined sticklebacks
Manipulations of signalling environment affect male competitive success in three-spined sticklebacks
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DOI：
10.1006/anbe.1996.0347
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发表时间：
1997-04-01
期刊：
影响因子：
2.5
通讯作者：
Baube, CL
中科院分区：
文献类型：
--
作者：
Baube, CL
培育成年雄性三刺鱼，Gasterosteus aculeatus L.，发展出一个精心设计的繁殖信号，其主要成分是腹部的红色。在维持或消除雄性感知颜色的光照条件下进行的实验室优势测试中，本研究考察了（1）雄性颜色与战斗能力之间的关系以及（2）三种假设在雄性竞争相互作用中的适用性。在对男性从长岛，纽约，人口规模和先前的优势经验相匹配，颜色更鲜艳的男性更有可能发起和赢得白色光。颜色对显性成功的影响下失去了重复照射的彩色光处理，掩盖了消除其视觉对比度的信号。与更明显的着色相关的竞争优势的丧失不是照明操作的假象，因为在白色光下观察到的效果在维持雄性着色的彩色光处理下得以维持。这些数据表明，红色腹部着色的男性功能作为一个威胁信号。(C)1997年，动物行为研究协会。
Breeding adult male three-spined sticklebacks, Gasterosteus aculeatus L., develop an elaborate breeding signal, the primary component of which is ventral red coloration. In laboratory dominance tests staged under illumination conditions that maintained or eliminated male perceived coloration, this study examined (1) the relationship between male coloration and fighting ability and (2) the applicability of three hypotheses for the current function of male coloration in male-male competitive interactions. In pairs of males from a Long Island, NY, population matched for size and prior dominance experience, the more brightly coloured males were more likely to initiate and win under white light. The effect of colour on dominance success was lost under replicates illuminated by coloured-light treatments that masked the signal by eliminating its visual contrast. The loss of competitive advantage associated with more conspicuous coloration was not an artefact of illumination manipulations, since the effects seen under white light were maintained under a coloured-light treatment that maintained male coloration. These data suggest that red belly coloration of males functions as a threat signal. (C) 1997 The Association for the Study of Animal Behaviour.