Ectoparasitos de pequenos mamíferos da Ilha de Maracá, Roraima, Brasil. II. interação entre ectoparasitos e hospedeiros.

Abstract

The total index of fleas, lice and acari were determined on mammals captured in Maracá Island, Roraima State, Brazil, from November 1987 to February 1989, In view of the limiting or critical values attributed to flea index, proposed as a complementary measure for plague surveillance, some wild rodent would have been exposed to this infec-tion. The total indexwas11.5 and the prevalent flea was Polygenis klagesi klagesi,observed in the dry season. The highest numbers of ectopanasites per host were: 244 for Proechimys guyannensis,193 for Proechimyssp. and 108 for Botomyssp. Species with the highest indices of infestation were P. klagesi klagesion Proechimyssp.; Gliricolasp. ri., Tur apicalisand Tur. aymaraon P. guyannensis. The single infestations were the most prevalent, while the double and others were equivalent. With the exception of proe chimyssp., all species of hosts presented single infestation . Only Laelaps dearmsiand Gliricola porcellioccurred in single infestations.