Environmental transmission of a personality trait: foster parent exploration behaviour predicts offspring exploration behaviour in zebra finches.
Environmental transmission of a personality trait: foster parent exploration behaviour predicts offspring exploration behaviour in zebra finches.
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人格特质的环境传递：寄养父母的探索行为可以预测斑胸草雀的后代探索行为。
DOI：
10.1098/rsbl.2013.0120
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发表时间：
2013
期刊：
影响因子：
3.3
通讯作者：
Schuett W
中科院分区：
文献类型：
--
作者：
Schuett W
个体之间一致的行为差异在许多物种中很常见，并对后代的健康产生重要影响。为了理解这种“个性”变异，确定遗传模式是很重要的，但这只对少数物种进行了量化。在这里，我们报告的结果从圈养斑马雀，Taeniopygia guttata，在其中我们交叉培育后代解开遗传和非遗传传播的行为的重要性的育种实验。在新环境中测量遗传和养父母的探索类型，在繁殖前和后代成年时评估探索类型。后代的探索型预测的探索行为的寄养，而不是遗传父母，而后代的大小预测的遗传，而不是寄养父母的大小。社会环境的其他方面，例如饲养制度（单亲与双亲）、孵化位置、育雏大小或个体性别并不影响后代的探索。因此，我们的研究结果表明，行为的非遗传传播可以在塑造动物个性变异中发挥重要作用。
Consistent behavioural differences among individuals are common in many species and can have important effects on offspring fitness. To understand such ‘personality’ variation, it is important to determine the mode of inheritance, but this has been quantified for only a few species. Here, we report results from a breeding experiment in captive zebra finches,Taeniopygia guttata, in which we cross-fostered offspring to disentangle the importance of genetic and non-genetic transmission of behaviour. Genetic and foster-parents’ exploratory type was measured in a novel environment pre-breeding and offspring exploratory type was assessed at adulthood. Offspring exploratory type was predicted by the exploratory behaviour of the foster but not the genetic parents, whereas offspring size was predicted by genetic but not foster-parents’ size. Other aspects of the social environment, such as rearing regime (uni- versus biparental), hatching position, brood size or an individual's sex did not influence offspring exploration. Our results therefore indicate that non-genetic transmission of behaviour can play an important role in shaping animal personality variation.