First results on the feeding ecology of sympatric shrews (Insectivora:Soricidae) in the Tai National Park, Ivory Coast

被引:24
作者
Churchfield, S [1 ]
Barrière, P
Hutterer, R
Colyn, M
机构
[1] Kings Coll London, Dept Life Sci, 150 Stamford St, London SE1 9NN, England
[2] Univ Rennes 1, CNRS, UMR 6552, Stn Biol Paimpont,Lab Ethol Evolut Ecol, F-35380 Paimpont, France
[3] Zool Forschungsinst, D-53113 Bonn, Germany
[4] Museum Alexander Koenig, Sect Mammals, D-53113 Bonn, Germany
来源
ACTA THERIOLOGICA | 2004年 / 49卷 / 01期
关键词
Crocidura; Sylvisorex; Soricidae; community; diets; tropical forest; Africa;
D O I
10.1007/BF03192504
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
The feeding ecology of a multi-species community of shrews inhabiting secondary forest and cacao-coffee plantations in the Tai National Park (Ivory Coast) was investigated. A total of 553 shrews were captured and 194 alimentary tracts were examined. Ten species were found, including Sylvisorex megalura and nine species of Crocidura, forming a series with respect to body size. New ecological data on these little known African species are presented. All species of shrews ate a wide diversity of arthropods, with Coleoptera, Araneae, Formicidae and Diplopoda making the largest dietary contributions. Lumbricidae were eaten by two species. C. obscurior had an exceptionally long intestine for its size but there was no evidence of dietary specialisation in this or other shrew species. All species investigated ate predominantly small prey and there was no correlation between size of prey items consumed and body mass of shrew species. There was little evidence of resource partitioning amongst the shrews, despite differences in body size.
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页码:1 / 15
页数:15
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