DISTRIBUTION, POPULATION-SIZE AND CONSERVATION OF HARTLAUBS GULL LARUS-HARTLAUBII

被引:10
|
作者
WILLIAMS, AJ
STEELE, WK
COOPER, J
CRAWFORD, RJM
机构
[1] Cape Provincial Administration: Nature and Environmental Conservation, Walvis Bay, 9190
[2] Percy FitzPatrick Institute of African Ornithology, University of Cape Town, Rondebosch
[3] Sea Fisheries Research Institute, Roggebaai, 8012
关键词
D O I
10.1080/00306525.1990.9633941
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Hartlaub’s Gull Larus hartlaubii is endemic to southern Africa, where it breeds between Swakopmund, Namibia and Dyer Island, southwestern Cape Province, South Africa. The species has been re breeding at 48 localities within this range. Between 1984 and 1989 an estimated 12000 pairs bred at 31 localities. Twenty-eight percent of the population breeds at Robben Island off the Cape Peninsula, south Africa. Hartlaub’s Gull frequently has low breeding success and is considered endangered in Narmbia, where 12% of the population occurs. However, the population is increasing around the urbanized Cape Peninsula where Hartlaub’s Gull has the potential to become a pest species. © 1990 Taylor and Francis Group, LLC.
引用
收藏
页码:66 / 76
页数:11
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