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Seabirds in the diet of Cape fur seals Arctocephalus pusillus pusillus at three mainland breeding colonies in Namibia
被引:13
|作者:
Mecenero, S
[1
]
Kirkman, SP
Roux, JP
机构:
[1] Univ Cape Town, Dept Stat Sci, Avian Demog Unit, ZA-7701 Rondebosch, South Africa
[2] Luderitz Marine Res, Minist Fisheries & Marine Resources, Luderitz, Namibia
关键词:
Arctocephalus pusillus pusillus;
Cape fur seal;
diet;
predation;
scat analysis;
seabirds;
D O I:
10.2989/18142320509504110
中图分类号:
Q17 [水生生物学];
学科分类号:
071004 ;
摘要:
Predation by Cape fur seals Arctocephalus pusillus pusillus on seabirds has previously been attributed to a few individuals, mainly males. Scat samples were collected at three mainland breeding colonies of seals in Namibia to determine the extent of seabird predation. Mainly females were sampled. No scats from the van Reenen Bay and Atlas-Wolf Bay colonies, and only two from Cape Cross, contained feather remains, giving an overall frequency of occurrence of feathers in scats of 0.1%. The feathers found were of African penguin Spheniscus demersus and a species of cormorant (Phalacrocorax sp.).
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页码:509 / 512
页数:4
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