Navegando por Assunto "Ixodidae"

Agora exibindo 1 - 3 de 3

Artigo
Migration and season explain tick prevalence in brazilian birds
(Medical and Veterinary Entomology, 2021) Fecchio, A.; Lugarine, Camile; Ferreira, A.; Weckstein, J. D.; Kuabara, K. M. D.; Torre, G. M. de la; Ogrzewalska, M.; Martins, T. F.; Dutra, D. de Angeli
Neotropical birds are mostly parasitized by immature ticks and act as reservoir hosts of tick-borne pathogens of medical and veterinary interest. Hence, determining the factors that enable ticks to encounter these highly mobile hosts and increase the potential for tick dispersal throughout migratory flyways are important for understanding tick-borne disease transmission. We used 9682 individual birds from 572 species surveyed across Brazil and Bayesian models to disentangle possible avian host traits and climatic drivers of infestation probabilities, accounting for avian host phylogenetic relationships and spatiotemporal factors that may influence tick prevalence. Our models revealed that the probability of an individual bird being infested with tick larvae and nymphs was lower in partial migrant hosts and during the wet season. Notably, infestation probability increased in areas with a higher proportion of partial migrant birds. Other avian ecological traits known to influence tick prevalence (foraging habitat and body mass) and environmental condition that might constrain tick abundance (annual precipitation and minimum temperature) did not explain infestation probability. Our findings suggest that migratory flyways harbouring a greater abundance of migrant bird hosts also harbour a higher prevalence of immature ticks with potential to enhance the local transmission of tick-borne pathogens and spread across regions.
Artigo
New records of Ixodes paranaensis (Acari: Ixodidae) from Minas Gerais, southeastern Brazil
(Systematic & Applied Acarology, 2009) Ferreira, Rodrigo Lopes; Torres, Filipe Dantas; Bernardi, Leopoldo F. De O; Silva, Marconi Souza; Onofrio, Valeria C; Battesti, Darci M. Barros; Labruna, Marcelo B
Artigo
Ticks (Ixodida) associated with bats (Chiroptera): an updated list with new records for Brazil
(2023-08-19) Lourenço, Elizabete Captivo; Famadas, Kátia Maria; Gomes, Luiz Antonio Costa; Bergallo, Helena Godoy
Bats harbor diverse groups of ectoparasites, such as insects and mites like ticks (Ixodida). Some species of ticks with records for bats and humans have already been reported with the occurrence of pathogens. This research article aims to document new geographical and host records of ticks infesting bats in Rio de Janeiro state, Southeastern Brazil, and provides a list of tick species associated with bats in Brazil. We counted 12 argasid ticks and five ixodid ticks associated with six individuals of bats. Larvae of Amblyomma sp., Ixodes sp., Ornithodoros sp., and Ornithodoros hasei and one nymph of Amblyomma sculptum parasitizing Artibeus obscurus, Phyllostomus hastatus, Micronycteris sp., Molossus fluminensis, and Carollia perspicillata in different localities of Rio de Janeiro state were studied. We carried out a systematic review with the descriptors: tick bat Brazil. We considered data from 42 articles in the systematic review. We compiled eleven records of Ixodidae, and 160 records of Argasidae. Ornithodoros cavernicolous were the most recorded tick species. Overall, we registered 171 tick–bat or roost–bat associations with 85 records of these infesting bats. The review also shows the occurrence of tick species associated with bats, and we present new records on ticks parasitizing bats in Brazil.