Bergmann's rule in alien birds
Bergmann's rule in alien birds
复制标题
伯格曼对外星鸟类的法则
DOI：
10.1111/ecog.03750
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发表时间：
2018
期刊：
影响因子：
5.9
通讯作者：
Blackburn T
中科院分区：
文献类型：
--
作者：
Blackburn T
本土鸟类的体型在不同物种间表现出纬度梯度（Bergmann’s rule），但这种梯度是否在外来鸟类分布中重现尚不清楚。在这里，我们在世界各地的外来鸟类物种中测试伯格曼规则的存在，并调查观察到的模式的原因。利用已公布的数据库获取已建立的外来鸟类种群的全球分布、外来鸟类引进的地点和鸟类的体重。采用随机试验和线性模型来评估引进和建立的外来鸟类种群的身体质量的纬度模式。已建立的外来鸟类物种表现出伯格曼法则，但这在很大程度上是由外来鸟类物种的引入地来解释的：已建立的外来鸟类物种的体重的纬度变化仅仅反映了引入物种的体重的纬度变化。有一些证据表明，体重与已建立物种的外来范围是向赤道扩张还是从赤道收缩有关。然而，大多数外来鸟类的活动范围都被该物种引入的纬度带所包围。因此，外来鸟类的伯格曼法则是人类引入不同物种的结果，而不是种群引入后的自然过程。
Native bird species show latitudinal gradients in body size across species (Bergmann's rule), but whether or not such gradients are recapitulated in the alien distributions of bird species are unknown. Here, we test for the existence of Bergmann's rule in alien bird species worldwide, and investigate the causes of the observed patterns. Published databases were used to obtain the worldwide distributions of established alien bird populations, the locations of alien bird introductions, and bird body masses. Randomisation tests and linear models were used to assess latitudinal patterns in the body masses of introduced and established alien bird populations. Established alien bird species exhibit Bergmann's rule, but this is largely explained by where alien bird species have been introduced: latitudinal variation in the body masses of established alien bird species simply reflects latitudinal variation in the body masses of introduced species. There is some evidence that body mass is implicated in whether or not established species’ alien ranges spread towards or contract away from the Equator following establishment. However, most alien bird ranges are encompassed by the latitudinal band(s) to which the species was introduced. Bergmann's rule in alien birds is therefore a consequence of where humans have introduced different species, rather than of natural processes operating after population introduction.
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影响因子：
2.7
作者：
Cardilini, Adam P. A.;Buchanan, Katherine L.;Symonds, Matthew R. E.
通讯作者：
Symonds, Matthew R. E.
影响因子：
56.9
作者：
JOHNSTON, RF;SELANDER, RK
通讯作者：
SELANDER, RK
影响因子：
5.1
作者：
Blackburn, Tim M.;Scrivens, Sally L.;Cassey, Phillip
通讯作者：
Cassey, Phillip
影响因子：
64.8
作者：
Jetz, W.;Thomas, G. H.;Mooers, A. O.
通讯作者：
Mooers, A. O.
影响因子：
5.9
作者：
Faurby, Soren;Araujo, Miguel B.
通讯作者：
Araujo, Miguel B.