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

PANISSE G; J NOTARNICOLA; PANISSE G; J NOTARNICOLA; DIGIANI M.C.; NAVONE GT; DIGIANI M.C.; NAVONE GT; MARIA DEL ROSARIO ROBLES; GALLIARI C; MARIA DEL ROSARIO ROBLES; GALLIARI C

ZOOTAXA

MAGNOLIA PRESS

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

1175-5326

Taxonomic and ecological aspects of the helminths found in the assemblage of sigmodontine rodents (Cricetidae-Muroidea)of the Atlantic Forest in Argentina are studied in this paper. The following species Akodon montensis, Brucepattersoniussp. and Thaptomys nigrita (Tribe Akodontini), as well as, Euryoryzomys russatus, Nectomys squamipes,Oligoryzomys nigripes, and Sooretamys angouya (Tribe Oryzomyini) are analyzed. A complete taxonomic list with a totalof 25 species of helminths, including Digenea (Dicrocoeliidae), Cestoda (Hymenolepididae) and Nematoda (Trichuridae,Capillariidae, Cooperidae, Helligmonellidae, Oxyuridae, and Onchocercidae) is provided. Twenty new host and localityrecords for Misiones, Argentina, are reported and the results of the ecological descriptors of component communities aregiven. The highest value of richness was observed for A. montensis (S=8) and E. russatus (S=7). The diversity index (H´)reached values between 1.03 and 1.39 in all rodents, with the exception of N. squamipes that reached 0.75. The equitabilityindeces with highest value were observed for T. nigrita and E. russatus. The Berger-Parker index of dominance was similarfor all host species. The highest prevalence, mean abundance and mean intensity values corresponded to Nippostrongylinae,followed by Syphacinii. This survey constitutes the report with the most diverse parasitic assemblage of rodentsdescribed for the Atlantic Forest ecoregion and for Argentina.