Diversity of ticks in wildlife dead by Motor Vehicle-Collisions in roads of São Paulo, Brazil: Preliminary results

Diversity of ticks in wildlife dead by Motor Vehicle-Collisions in roads of São Paulo, Brazil: Preliminary results

Danny Fuentes-CastilloEl Gaff

Pedro E. Navas-Suárez, T.F Martins, Danny Fuentes-Castillo, M.C. Silva, P. R. Souza, M.B. Labruna, José Luiz Catão-Dias

One of the main environmental impacts caused by roads in Brazil is mortality by Motor Vehicle-Collision. It is estimated that at least 15 animals die per second in Brazilian roads. We hypothesize that carcasses of roadkilled animals can be a source of parasitological information. In this work we present preliminary results obtained in 24 months of sampling roadkills to find and identify ectoparasites. During 2017-2018, 116 carcasses of wildlife (83 mammals, 33 birds) were recorded in two roads of Sao Paulo state, Brazil. Search of ectoparasites was carried out. The parasites found were extracted with tweezers and placed in tubes with 70% ethanol to posterior identification. A total of 878 ticks corresponding to 15 different species were collected. In mammals: 6 tick species in Mazama gouazoubira: Amblyomma incisum, A. brasiliense, A. sculptum, Rhipicephalus microplus, Ixodes aragaoi and Haemaphysalis juxtakochi; 4 tick species in Tamandua tetradactyla: A. calcaratum, A. nodosum, A. varium and A. brasiliense; 3 tick species in Cerdocyon thous: A. sculptum, A. aureolatum and A. ovale; and Puma concolor: A. aureolatum, A. ovale and Dermacentor nitens; 2 tick species in: Bradypus variegatus: A. varium and A. dubitatum; Chrysocyon brachyurus: A. tigrinum and A. sculptum; Didelphis aurita: I. loricatus and A. dubitatum; Hydrochaerus hydrochaeris: A. sculptum and A. dubitatum; and Procyon cancrivorus: A. aureolatum and A. ovale; and one tick species: Sphiggurus villosus: A. longirostre; Tapirus terrestris: A. sculptum; and in Leopardus pardalis and Puma jaguaroundii were found larvae of Amblyomma sp. In birds, Assio clamator: larvae of Haemaphysalis sp. and Amblyomma sp.; Strix virgata: larvae of Amblyomma sp., and Milvago chimachima: R. microplus. The findings of A. varium in T. tetradactyla, A. dubitatum in B. variegatus and R. microplus in M. chimachima reported in this study are considered new reports of tick-host associations.

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