SYNCHRONY OF POPULATION FLUCTUATIONS - THE DOMINANT INFLUENCE OF WIDESPREAD FACTORS ON LOCAL BUTTERFLY POPULATIONS

被引:82
作者
POLLARD, E
机构
关键词
D O I
10.2307/3544985
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Fluctuations in the abundance of butterflies at many sites in Britain are monitored in a national scheme. Both annual fluctuations and long term trends at individual sites are often very closely synchronised with regional data which excludes the study sites. I argue from such synchrony: (1) that these population are likely to be limited by density-dependent factors and (2) that population fluctuations are little influenced by interactions which are specific to local communities.
引用
收藏
页码:7 / 10
页数:4
相关论文
共 14 条