Repeatability and heritability of exploratory behaviour in great tits from the wild
Repeatability and heritability of exploratory behaviour in great tits from the wild
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DOI：
10.1006/anbe.2002.2006
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发表时间：
2002-12-01
期刊：
影响因子：
2.5
通讯作者：
Van Noordwijk, AJ
中科院分区：
文献类型：
--
作者：
Dingemanse, NJ;Both, C;Van Noordwijk, AJ
我们调查了个体大山雀（Parus major）在新环境中的探索行为是否会持续变化，并测量了这一特征的可重复性和遗传性。在其自然栖息地捕获野生鸟类，第二天上午在实验室的野外测试中进行测试，然后在捕获地点释放。我们测量了重新捕获个体的探索行为的个体一致性（可重复性），并通过亲子回归和兄弟分析估计了遗传力。个体在重复捕获时的探索行为测量在两性和研究区域是一致的（重复性范围从0.27到0.48）。探索得分在性别之间没有差异，与年龄、羽翼发育状况或测量期间的状况无关。遗传力估计为0.22-0.41（亲子回归）和0.37-0.40（兄弟姐妹分析）。我们得出的结论是：(1)野外个体在开阔地行为上存在一致的个体差异，(2)这种行为差异是可遗传的。这是第一批显示野生动物行为特征的遗传变异的研究之一，并提出了这种变异在自然条件下如何保持的问题。(C) 2002动物行为研究协会。Elsevier Science Ltd.出版。版权所有。
We investigated whether individual great tits, Parus major, vary consistently in their exploratory behaviour in a novel environment and measured the repeatability and heritability of this trait. Wild birds were caught in their natural habitat, tested in the laboratory in an open field test on the following morning, then released at the capture site. We measured individual consistency of exploratory behaviour for recaptured individuals (repeatability) and estimated the heritability with parent-offspring regressions and sibling analyses. Measures of exploratory behaviour of individuals at repeated captures were consistent in both sexes and study areas (repeatabilities ranged from 0.27 to 0.48). Exploration scores did not differ between the sexes, and were unrelated to age, condition at fledging or condition during measurement. Heritability estimates were 0.22-0.41 (parent-offspring regressions) and 0.37-0.40 (sibling analyses). We conclude that (1) consistent individual variation in open field behaviour exists in individuals from the wild, and (2) this behavioural variation is heritable. This is one of the first studies showing heritable variation in a behavioural trait in animals from the wild, and poses the question of how this variation is maintained under natural conditions. (C) 2002 The Association for the Study of Animal Behaviour. Published by Elsevier Science Ltd. All rights reserved.