Realized heritability of personalities in the great tit (Parus major)
Realized heritability of personalities in the great tit (Parus major)
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DOI：
10.1098/rspb.2002.2168
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发表时间：
2003-01-07
影响因子：
4.7
通讯作者：
van Noordwijk, AJ
中科院分区：
文献类型：
--
作者：
Drent, PJ;van Oers, K;van Noordwijk, AJ
在轻度压力条件下的行为在所有脊椎动物中表现出一致的模式：探索行为，大胆，侵略性以同样的方式协变。在这些行为策略中存在高度一致的个体差异，也被称为个性或应对方式，使我们能够在标准化条件下测量圈养繁殖的鸟类的行为，将标准化测量与自然条件下的行为联系起来，并测量野外的自然选择。我们人工饲养了大山雀（Parus major），这是研究自然条件下行为的经典模式物种。在这里，我们报告了一个实现的遗传率为54 +/- 5%的早期探索行为，基于四代的双向人工选择。除此之外，我们还在实验室中测量了人工饲养的幼鱼和它们的野生父母。在中间后代-中间亲本回归中发现的遗传力与零有显著差异。因此，我们已经确定了野生鸟类中存在相当数量的性格类型遗传变异。
Behaviour under conditions of mild stress shows consistent patterns in all vertebrates: exploratory behaviour, boldness, aggressiveness covary in the same way. The existence of highly consistent individual variation in these behavioural strategies, also referred to as personalities or coping styles, allows us to measure the behaviour under standardized conditions on birds bred in captivity, link the standardized measurements to the behaviour under natural conditions and measure natural selection in the field. We have bred the great tit (Parus major), a classical model species for the study of behaviour under natural conditions, in captivity. Here, we report a realized heritability of 54 +/- 5% for early exploratory behaviour, based on four generations of bi-directional artificial selection. In addition to this, we measured hand-reared juveniles and their wild-caught parents in the laboratory. The heritability found in the mid-offspring-mid-parent regression was significantly different from zero. We have thus established the presence of considerable amounts of genetic variation for personality types in a wild bird.