Birds extend their ranges northwards
Birds extend their ranges northwards
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DOI：
10.1038/20335
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发表时间：
1999-05
期刊：
影响因子：
64.8
通讯作者：
C. Thomas;J. Lennon
中科院分区：
文献类型：
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作者：
C. Thomas;J. Lennon
我们分析了英国鸟类在20年间的繁殖分布。在控制了总体种群的扩张和回撤后，我们发现许多物种的北缘在这段时间里平均向北移动了18.9公里。这种普遍的北移发生在气候变暖的时期，我们认为这可能是因果关系。
We have analysed the breeding distributions of British birds over a 20-year period. After controlling for overall population expansions and retractions, we find that the northern margins of many species have moved further north by an average of 18.9 km during this time. This general northward shift took place during a period of climatic warming, which we propose might be causally involved.