Birds extend their ranges northwards

被引:622
作者
Thomas, CD [1 ]
Lennon, JJ [1 ]
机构
[1] Univ Leeds, Sch Biol, Ctr Biodivers & Conservat, Leeds LS2 9JT, W Yorkshire, England
关键词
D O I
10.1038/20335
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
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.
引用
收藏
页码:213 / 213
页数:1
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