Host–Parasite relationships and co-infection of nasal mites Chrysomus ruficapillus (Passeriformes: Icteridae) in southern of Brazil

Fabiana Fedatto Bernardon

Resumo


One hundred twenty-two Chrysomus ruficapillus were examined in southern Brazil, in order to research the presence of nasal mites and the parasite-host relationships. Nasal mite infections were analyzed for: presence of Ereynetidae and Rhinonyssidae considering the total number of hosts examined; Sexual maturity of males (juveniles and adults); Periods of bird collection and presence of co-infections. Were identified five taxa, four belongs to Rhinonyssidae (Sternostoma strandtmanni, Ptilonyssus sairae, Ptilonyssus icteridius and Ptilonyssus sp.) and one to Ereynetidae (Boydaia agelaii). Adult males were parasitized for one taxa more than juvenile males. Co-infections occurred in 22 hosts, between two, three and four taxa, belonging to Ereynetidae and Rhinonyssidae.The co-infections were more prevalent in the collection period-II (austral autumn / winter). The host-parasite relations and co-infections by nasal mites in C. ruficapillus were reported for the first time, contributing to knowledge about nasal mites in Brazil.



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