SURVIVAL OF BRITISH SEDGE WARBLERS ACROCEPHALUS-SCHOENOBAENUS IN RELATION TO WEST AFRICAN RAINFALL

被引:172
作者
PEACH, W [1 ]
BAILLIE, S [1 ]
UNDERHILL, L [1 ]
机构
[1] UNIV CAPE TOWN, DEPT MATH STAT, RONDEBOSCH 7700, SOUTH AFRICA
关键词
D O I
10.1111/j.1474-919X.1991.tb04573.x
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Fluctuations in the population levels and annual adult survival rates of British Sedge Warblers Acrocephalus schoenobaenus since the late 1960s are strongly correlated with indices of wet season rainfall in the west African winter quarters. Population changes are unrelated to estimates of breeding productivity in the previous year. Habitat availability in the winter quarters has probably been the main factor limiting the size of the Sedge Warbler population in Britain during the period of study.
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页码:300 / 305
页数:6
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