Feeding innovations and forebrain size in birds
Feeding innovations and forebrain size in birds
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DOI：
10.1006/anbe.1996.0330
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发表时间：
1997-03-01
期刊：
影响因子：
2.5
通讯作者：
Finkelstein, A
中科院分区：
文献类型：
--
作者：
Lefebvre, L;Whittle, P;Finkelstein, A
生态学、行为可塑性和大脑大小之间的联系经常通过比较方法进行测试。然而，鉴于在解释学习和认知的比较测试中存在的问题，需要开发可塑性的替代措施。从九个鸟类学期刊的简短说明部分，两个独立的，详尽的数据集已整理在北美（1973-1993; N=196）和不列颠群岛（1983-1993; N=126）的鸟类的机会主义觅食创新。创新的绝对和相对频率（校正为每目的物种数）在两个地理区域以类似的方式在鸟类目之间存在差异。每订单的绝对和相对频率的创新也涉及到两个措施的相对前脑大小在这两个区域。这项研究证实了预测的趋势，将机会主义，大脑大小和结构进化速度联系起来。它还表明，创新率在举行可能是一个有用的措施的行为可塑性。(C)1997年，动物行为研究协会。
The links between ecology, behavioural plasticity and brain size are often tested via the comparative method. Given the problems in interpretating comparative tests of learning and cognition, however, alternative measures of plasticity need to be developed. From the short notes section of nine ornithological journals, two separate, exhaustive data sets have been collated on opportunistic foraging innovations in birds of North America (1973-1993; N=196) and the British Isles (1983-1993; N=126). Both the absolute and relative frequencies (corrected for species number per order) of innovations differ between bird orders in a similar fashion in the two geographical zones. Absolute and relative frequency of innovations per order are also related to two measures of relative forebrain size in the two zones. The study confirms predicted trends linking opportunism, brain size and rate of structural evolution. It also suggests that innovation rate in the held may be a useful measure of behavioural plasticity. (C) 1997 The Association for the Study of Animal Behaviour.