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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 98, No. 6, 2003, pp. 793-798
Bioline Code: oc03161
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 98, No. 6, 2003, pp. 793-798

 en Host-ectoparasite Specificity in a Small Mammal Community in an Area of Atlantic Rain Forest (Ilha Grande, State of Rio de Janeiro), Southeastern Brazil
Emerson Brum Bittencourt & Carlos Frederico Duarte Rocha

Abstract

The analyses of the ectoparasite species associated with a small mammal community on Ilha Grande, a coastal island in southern of the state of Rio de Janeiro, Brazil, evaluated the level of host-ectoparasite specificity. Was used the Jaccard index for qualitative data to analyse the similarity. The lowest value of similarity occurred between Proechimys iheringi check for this species in other resources and Marmosops incanus check for this species in other resources and between Sciurus aestuans check for this species in other resources and Nectomys squamipes check for this species in other resources (Cj = 0.08) and the highest between P. iheringi and Oxymycterus check for this species in other resources sp. (Cj = 0.33). This index showed a low value of similarity across the ectoparasite community. The only exception from this pattern of high host specificity occurred with P. iheringi and Oxymycterus sp., which shared five species of ectoparasites. The similarity values, for most of the cases, is smaller than 0.2.

Keywords
host-parasite specificity - small mammals - parasitism - ectoparasites - Atlantic Rainforest - Rio de Janeiro - Brazil

 
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