Learned mate recognition and reproductive isolation in guppies
Learned mate recognition and reproductive isolation in guppies
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DOI：
10.1016/j.anbehav.2003.10.010
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发表时间：
2004-06-01
期刊：
影响因子：
2.5
通讯作者：
Ramnarine, IW
中科院分区：
文献类型：
--
作者：
Magurran, AE;Ramnarine, IW
对习得性物种歧视的研究集中在早期经验的后果上。然而，在父母照顾有限或缺乏的物种中，包括大多数鱼类，幼鱼向成年同类学习的机会较少。我们研究了特立尼达孔雀鱼，孔雀鱼和它们的姐妹物种，沼泽孔雀鱼，P. picta的雄性配偶识别。选择测试显示，男性从地方，他们的物种是唯一的poecilid目前最初交配。同种和异种的雌性随机交配。而同域分布的网斑拟步行虫和彩斑拟步行虫则偏爱自己的雌性。然后，我们调查了收购的交配歧视的野生P.网状男性从两个异域种群。允许与两个物种的女性互动的男性在4天内学会区分同种合作伙伴，并在一周内，他们的物种歧视相匹配的同域种群。这项研究证实，学习是重要的，在收购成人交配的喜好，并显示为什么学习配偶的喜好可以在物种形成的最后阶段是重要的。(C)2004年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有紧身衣。
Research on learned species discrimination has focused on the consequences of early experience. However, in species where parental care is limited or absent, including most fish, juveniles have fewer opportunities to learn from adult conspecifics. We examined male mate recognition in Trinidadian guppies, Poecilia reticulata, and in their sister species, the swamp guppy, P. picta. Choice tests revealed that males from localities where their species is the only poeciliid present initially mated. with conspecific and heterospecific females at random. In contrast, P. reticulata and P. picta found in sympatry preferred their own females. We then investigated the acquisition of mating discrimination by wild P. reticulata males from two allopatric populations. Males that were allowed to interact with females of both species learned within 4 days to distinguish conspecific partners, and within a week their species discrimination matched that of sympatric populations. This study confirms that learning is important in the acquisition of adult mating preferences and shows why learned mate preferences can be important in the last stages of speciation. (C) 2004 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All tights reserved.