Personality over ontogeny in zebra finches: long-term repeatable traits but unstable behavioural syndromes.
Personality over ontogeny in zebra finches: long-term repeatable traits but unstable behavioural syndromes.
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DOI：
10.1186/1742-9994-12-s1-s9
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发表时间：
2015
影响因子：
2.8
通讯作者：
Krüger O
中科院分区：
文献类型：
--
作者：
Wuerz Y;Krüger O
动物性格研究的一个重要假设是，行为随着时间的推移是一致的，表现出个体内的高度重复性。这种假设经常被提出，有时在行为测试之间使用短时间间隔进行测试，但很少在跨越个体发育不同阶段的长时间间隔中进行彻底调查。我们在斑胸草雀（Taeniopygia guttata）的三个生命阶段进行了这样的纵向测试，约占其圈养寿命的15-20%，并发现重复率范围从0.03到0.67。无畏和探索是最可重复的特征，无论是在生命的内部还是在生命的不同阶段。活动和侵略是可重复的，但不是或只有部分在生命阶段。勇气是不可复制的。此外，我们没有发现任何证据表明个体发育过程中存在一致的行为综合征结构。我们的研究结果表明，行为特征的一致性和它们之间的相关性可能被高估，并建议不应该简单地假设动物人格的终身稳定性。
A crucial assumption of animal personality research is that behaviour is consistent over time, showing a high repeatability within individuals. This assumption is often made, sometimes tested using short time intervals between behavioural tests, but rarely thoroughly investigated across long time intervals crossing different stages of ontogeny. We performed such a longitudinal test across three life stages in zebra finches (Taeniopygia guttata), representing about 15-20% of their life span in captivity, and found repeatabilities ranging from 0.03 to 0.67. Fearlessness and exploration were the most repeatable traits both within and across life stages. Activity and aggression were repeatable across, but not or only partly within life stages. Boldness was not repeatable. Furthermore, we found no evidence for a consistent behavioural syndrome structure across ontogeny. Our results indicate that the consistency of behavioural traits and their correlations might be overestimated and suggest that life-long stability of animal personality should not simply be assumed.