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      Spatial use of rodents (Rodentia: Mammalia) host body surface by ectoparasites Translated title: Uso da superfície do corpo de hospedeiros roedores (Rodentia: Mammalia) por ectoparasitos

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          Abstract

          We studied the ectoparasite and the Amblyopinini beetle fauna associated with four small mammal species of the Atlantic Rainforest of Ilha Grande, an island located off the southern Rio de Janeiro State Coast, Southeastern Brazil, analyzing to what extent the parasites were specific to each region of the host body. During the study, a total of 90 individual rodents were captured: 61 Proechimys iheringi Thomas, 1911 (Echymyidae), 22 Sciurus aestuans (Thomas, 1901) (Sciuridae), 4 Oxymycterus sp. (Waterhouse, 1837), and 2 Nectomys squamipes (Brants, 1827) (Sigmodontinae). The data showed that the ectoparasites and Amblyopinini on some rodent hosts in Ilha Grande tend to prefer particular host body sites, and that some ectoparasite species sites may overlap owing to their inaccessibility to the host.

          Translated abstract

          Estudamos a fauna de ectoparasitos e besouros Amblyopinini associada a quatro espécies de pequenos mamíferos da Mata Atlântica da Ilha Grande, localizada no sul do Estado do Rio de Janeiro, Sudeste do Brasil, analisando em que extensão os ectoparasitos seriam específicos de cada região do corpo do hospedeiro. Durante o estudo capturamos um total de 90 roedores: 61 Proechimys iheringi Thomas, 1911 (Echymyidae), 22 Sciurus aestuans (Thomas, 1901) (Sciuridae), 4 Oxymycterus sp. (Waterhouse, 1837) e 2 Nectomys squamipes (Brants, 1827) (Sigmodontinae). Os dados mostraram que os ectoparasitos e os Amblyopinini encontrados vivendo nos hospedeiros roedores da Ilha Grande apresentam preferência por algumas áreas específicas do corpo do hospedeiro. Contudo, algumas espécies de ectoparasitos podem se sobrepor em alguns sítios que utilizam, aparentemente devido à limitação de acesso a esses sítios pelos hospedeiros, reduzindo sua remoção e aumentando a chance de que ali ocorram.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                bjb
                Brazilian Journal of Biology
                Braz. J. Biol.
                Instituto Internacional de Ecologia (São Carlos )
                1678-4375
                August 2002
                : 62
                : 3
                : 419-425
                Affiliations
                [1 ] Universidade do Estado do Rio de Janeiro Brazil
                Article
                S1519-69842002000300004
                10.1590/S1519-69842002000300004
                12530177
                Product
                Product Information: website
                Categories
                BIOLOGY

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