Ecology (communication arising): Living in synchrony on Greenland coasts?
Ecology (communication arising): Living in synchrony on Greenland coasts?
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生态（通讯产生）：在格陵兰海岸同步生活？
DOI：
10.1038/427698a
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发表时间：
2004
期刊：
影响因子：
64.8
通讯作者：
M. Forchhammer
中科院分区：
文献类型：
--
作者：
E. Post;M. Forchhammer
Vik等人质疑我们是否记录了格陵兰驯鹿和麝牛之间的空间同步性，以及每个物种内部的空间同步性是否与北大西洋涛动（NAO）有关。将空间同步归因于气候是困难的，但也是可能的，Vik等人提出的问题很容易得到解决。与他们对我们定义的NAO效应比率的错误陈述相反，对任何一对种群的强烈气候影响都不是气候诱导同步的必要条件。正如莫兰所主张的，以及我们的分析所表明的，如果气候对每个种群的影响相似，无论影响的大小如何，那么种群可能是同步的。此外，标准化的NAO效应比与种群间的气候相关程度以及种群间的同步程度具有统计学相关性。
Vik et al. question whether we documented spatial synchrony between caribou and musk oxen from Greenland, and whether spatial synchrony within each species related to the North Atlantic Oscillation (NAO). Attributing spatial synchrony to climate is difficult but possible, and the questions raised by Vik et al. are readily addressed. Contrary to their incorrect statement of our definition of the NAO effect ratio, a strong climatic effect on any pair of populations is not a requisite of climate-induced synchrony. As Moran argued, and as our analysis illustrated, populations may be synchronized if climate influences each of them similarly, regardless of the magnitude of that influence. Moreover, the standardized NAO effect ratio is associated statistically with the degree of climatic correlation across populations and hence the degree of synchrony between populations.