Ocorrência de carrapatos em Tamandua tetradactyla (Linnaeus, 1758) na Caatinga, Nordeste do Brasil

Abstract

The Caatinga is an exclusively Brazilian biome and one of the most diverse in the world, housing a great variety faunal. Southern Tamandua (Linnaeus, 1758), known as collared anteater, can be found throughout the country. The present study aimed to report the presence of ticks on anteaters treated at the Conservation Center and Wildlife Management of Caatinga, Petrolina, Pernambuco, Brazil. From February 2010 to February 2016, 23 T. tetradactyla from the municipalities of Juazeiro (BA) Casa Nova (BA), Sento Sé (BA), Nonato (PI), Petrolina (PE), Great Pond (PE ) and Willow (PE), have been received and inspected to evaluate the presence of ticks, which were later collected with the help of anatomical tweezer and stored in tubes containing 70% alcohol. The identification was carried out by observation of morphological characteristics in stereomicroscope and use of taxonomic keys. Approximately 8.69% (2/23) of the animals had parasitism by ticks. The Ixodids were found fixed on ventral and cervical regions and were identified as Rhipicephalus sanguineus sensu lato (five female), parasitizing the anteater 1 coming from Petrolina-PE; Amblyomma auricularium (one larva, 18 nymphs and a female) and Amblyomma sp. parasitizing the anteater 2 coming from Salgueiro-PE. This study reports the novel parasitism by larva of A. auricularium in T. tetradactyla in semiarid of Pernambuco ; and reaffirms the higher affinity of this ixodid by members of the superorder Xenarthra. It was possible to determine the parasitism of R. sanguineus s.l. in collared anteater, the which may be related to the sharing of the same habitat with domestic dogs infested. The parasitism of wild animals in new locations where they were not previously registered must be stimulated to expand the knowledge of the geographical distribution of ixodids in Brazil.