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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 97, No. 7, 2002, pp. 959-963
Bioline Code: oc02218
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 97, No. 7, 2002, pp. 959-963

 en Parasitic Arthropods of Some Wild Rodents from Juréia-Itatins Ecological Station, State of São Paulo, Brazil
David Eduardo Paolinetti Bossi; Arício Xavier Linhares & Helena de Godoy Bergallo

Abstract

A study of the associations between three species of rodents in the Atlantic forest and their parasitic arthropods was undertaken at the Juréia-Itatins Ecological Station, located in the State of São Paulo, Southeastern Brazil, from March 1989 to February 1990. Individuals of three species, Oryzomys russatus check for this species in other resources , Proechimys iheringi check for this species in other resources and Nectomys squamipes check for this species in other resources were captured and examined for ectoparasites. Eleven species of parasitic arthropods were found, including four species of insects and seven of Acari. Parasitism intensity, phenology, and rainfall were positively correlated with the abundance of the ectoparasites and their hosts. The most abundant host was O. russatus (Muridae: Sigmodontinae), and the most common parasite on it was the laelapid mite Gigantolaelaps check for this species in other resources oudemansi. The cuterebrid Metacuterebra apicalis check for this species in other resources caused myiasis in O. russatus. A mutualistic association between the staphylinid beetle Amblyopinus check for this species in other resources sp. and its host P. iheringi (Echimyidae) was observed. The few N. squamipes captured had small numbers of ectoparasites.

Keywords
rodent ectoparasites - Acari - Diptera - Siphonaptera - Coleoptera - Atlantic rain forest - Brazil

 
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