Description of the helminth communities of sympatric rodents (Muroidea: Cricetidae) from the Atlantic Forest in northeastern Argentina

PANISSE, G.; ROBLES, M.R.; DIGIANI, M.C.; NOTARNICOLA, JULIANA; GALLIARI C.; NAVONE G. T.

ZOOTAXA

MAGNOLIA PRESS

Lugar: Auckland; Año: 2017 vol. 4337 p. 243 - 262

1175-5326

Taxonomicand ecological aspects of the helminths found in the assemblage of sigmodontinerodents (Cricetidae-Muroidea) of the AtlanticForest in Argentina are studied in this paper. Thefollowing species Akodon montensis, Brucepattersonius sp. and Thaptomysnigrita (Tribe Akodontini), as wellas, Euryoryzomys russatus,Nectomys squamipes,Oligoryzomys nigripes, and Sooretamysangouya (Tribe Oryzomyini) areanalyzed. A complete taxonomic list with a total of 25 species of helminths, includingDigenea (Dicrocoeliidae), Cestoda (Hymenolepididae) and Nematoda (Trichuridae,Capillariidae, Cooperidae, Helligmonellidae, Oxyuridae, and Onchocercidae) is provided.Twenty new host and locality records for Misiones, Argentina, are reported andthe results of the ecological descriptors of component communities are given. Thehighest value of richness was observed for A. montensis (S=8) and E. russatus (S=7). The diversityindex (H´) reached values between 1.03and 1.39 in all rodents, with the exception of N. squamipes that reached 0.75. The equitability indeces with highestvalue were observed for T. nigrita and E. russatus. The Berger-Parkerindex of dominance was similar for all host species. The highest prevalence, mean abundance and mean intensity valuescorresponded to Nippostrongylinae, followed by Syphacinii. This survey constitutesthe report with the most diverse parasitic assemblage of rodents described for theAtlantic Forest ecoregion and for Argentina.