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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 98, No. 5, 2003, pp. 673-677
Bioline Code: oc03139
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 98, No. 5, 2003, pp. 673-677

 en Arthropod and Filarioid Parasites Associated with Wild Rodents in the Northeast Marshes of Buenos Aires, Argentina
Marcela Lareschi; Juliana Notarnicola; Graciela Navone & Pedro Marcos Linardi

Abstract

During 1995, 16 species of arthropods and 2 species of filarioids, totaling 1 287 specimens were collected from 64 wild rodents captured in the Hudson Natural Reserve, Buenos Aires, Argentina. Infestation parameters and indexes were analyzed. Host specific richness was S = 6, diversity H = 1.48, and relative density RDI = 40%. High values of parasite species richness and diversity were found on Oligoryzomys delticola check for this species in other resources (S = 9; H = 1.40), Oxymycterus rufus check for this species in other resources (S = 9; H = 1.37), and Oligoryzomys flavescens check for this species in other resources (S = 9; H = 1.28), followed by Scapteromys aquaticus check for this species in other resources (S = 6; H = 0.17), and Akodon azarae check for this species in other resources (S = 4; H = 1.20). Deltamys kempi check for this species in other resources was infested only by Androlaelaps rotundus check for this species in other resources .

O. delticola and O. flavescens showed the highest similarity index (O = 74.19%), followed by O. flavescens with S. aquaticus, as a result of historical processes and shared microhabitats. Considering arthropods-filarioids associations, significant affinity was observed in Litomosoides bonaerensis with Hoplopleura travassosi check for this species in other resources , Laelaps paulistanensis check for this species in other resources , and Gigantolaelaps wolffsohni check for this species in other resources .

Keywords
ectoparasitic arthropods - filarioid nematodes - diversity - rodents - Argentina

 
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