Composition and structure of the parasite community of Bufo ictericus (Spix, 1824) (Anura: Bufonidae) from Municipality of Miguel Pereira, State of Rio de Janeiro, Brazil / Composição e estrutura da comunidade parasitária de Bufo ictericus (Spix, 1824) (Anura: Bufonidae) do Município de Miguel Pereira, Estado do Rio de Janeiro, Brasil

AUTOR(ES)

Amanda Nascimento Martins

DATA DE PUBLICAÇÃO

2004

RESUMO

Thirty-two specimes of Bufo ictericus (Spix, 1824), 22 males and 10 females, collected in the Municipality of Miguel Pereira, State of Rio de Janeiro, Brazil, from April 2003 to August 2003, were necropsied to study their metazoan parasites. Thirty-one (97%) specimens of B. ictericus were parasited by one or more metazoan species. Sixteen species of parasites were collected: 2 digeneans, 13 nematodes, and 1 ixodid. The endoparasites corresponding to 82.3% of total number of parasite specimens collected. B. ictericus, a new host record for: Gorgoderina parvicava Travassos, 1922, Oswaldocruzia lopesi Freitas &Lent, 1938, O. mazzai Travassos, 1935, O. subauricularis (Rudolphi, 1819), Oxyascaris sp., Parapharyngodon alvarengai Freitas, 1957, Rhabdias elegans Gutierrez, 1945 and R. sphaerocephala Goodey, 1924. The digenean Mesocoelium monas (Rudolphi, 1819) was the most abundant species and the acari Amblyomma rotundatum (Koch, 1844) was the more prevalent in the parasite community of B. ictericus. The metazoan parasites species of B. ictericus showed the aggregated pattern of distribution. There was not observed influence of the host weight on the parasite abundance and prevalence. Only one parasite species, M. monas, showed influence of the host sex on the parasite abundance and prevalence. Only one pair of endoparasite species, O. lopesi e M. monas, showed association in the infracommunities of B. ictericus. As in other vertebrates and other anuran species, em, the parasite community of B. ictericus is characterized by the dominance of the endoparasite species.

ASSUNTO(S)

parasitologia metazoários parasitos amphibians anfíbios parasite ecology ecologia parasitária metazoan parasites

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