RESUMEN
Trinidad and Tobago, a neotropical country, has 38 reported chigger species. Of these species, 18 were parasitizing bats. Here, we describe a new genus and species parasitizing a ghost-faced bat in this country.
Asunto(s)
Cuevas , Quirópteros , Trombiculiasis , Trombiculidae , Animales , Quirópteros/parasitología , Especificidad de la Especie , Trinidad y Tobago , Trombiculiasis/parasitología , Trombiculidae/clasificaciónRESUMEN
Chigger mites are ectoparasites of terrestrial tetrapods and can cause dermatitis in the host, known as trombiculiasis. In Brazil, there are 73 species of chiggers; however, cats never have recorded as a host in this country. Here, we report the first record of chiggers parasitizing a domestic cat in Brazil; and a new locality for Eutrombicula tinami (Oudemans 1910) in the Rio Grande do Sul state, Brazil.
Asunto(s)
Enfermedades de los Gatos/parasitología , Dermatitis/veterinaria , Larva/clasificación , Trombiculiasis/veterinaria , Trombiculidae/clasificación , Animales , Brasil , Gatos , Infestaciones por Ácaros/veterinaria , Trombiculidae/genéticaRESUMEN
The chigger mite genus Blankaartia includes 28 known species, of which 10 are distributed in the Nearctic and Neotropical regions. These species preferentially parasitize birds, but occasionally they can also be found on rodents, bats, and reptiles, showing low host selectivity. In the present study, we report the presence of this genus in Brazil for the first time, including the first report of Blankaartia sinnamaryi (Floch and Fauran) and the description of a new species of Blankaartia collected from birds (Order Passeriformes).
Asunto(s)
Enfermedades de las Aves/parasitología , Infestaciones por Ácaros/veterinaria , Passeriformes , Trombiculidae/anatomía & histología , Trombiculidae/clasificación , Animales , Brasil , Larva/anatomía & histología , Larva/clasificación , Larva/crecimiento & desarrollo , Larva/fisiología , Infestaciones por Ácaros/parasitología , Trombiculidae/crecimiento & desarrollo , Trombiculidae/fisiologíaRESUMEN
This study aimed to assess the contribution of hosts characteristics (rodents and marsupials) in the organization of ectoparasite communities present in woodland patches in western central Brazil. We verified the effect of host species, sex, body mass and vertical strata in addition to the role of seasonality on the ectoparasite composition, richness and abundance. The total sampling effort was 22 032 trap-nights equally distributed in 54 woodland patches. Variance partition and principal coordinate analysis were used to verify the existence of significant relationships between response variables and predictors. As expected, host species was the most important variable in ectoparasite community assembly. The composition, richness and abundance of mites and lice were highly influenced by host species, although higher for mites than for lice. Host body mass had a determining role on the richness and abundance of tick species. Vertical stratification and seasonality had weak influence, while the sex of the host had no influence on the organization of these communities. The results are closely related to the evolutionary characteristics of the species involved, as well as with local environmental characteristics of the study area.
Asunto(s)
Pradera , Infestaciones por Piojos/veterinaria , Mamíferos , Infestaciones por Ácaros/veterinaria , Infestaciones por Garrapatas/veterinaria , Animales , Brasil , Femenino , Especificidad del Huésped , Infestaciones por Piojos/epidemiología , Infestaciones por Piojos/parasitología , Masculino , Infestaciones por Ácaros/epidemiología , Infestaciones por Ácaros/parasitología , Ácaros/clasificación , Phthiraptera/clasificación , Infestaciones por Garrapatas/epidemiología , Infestaciones por Garrapatas/parasitología , Garrapatas/clasificaciónRESUMEN
The Acari Collection of Instituto Butantan (IBSP), São Paulo, Brazil, includes many types and other identified mite specimens that were mounted in Hoyer's medium, mainly in the first part of last century. An effort to restore degraded preparations was initiated in 1996. In this process, an improved technique was developed, allowing the adequate cleaning of specimens mounted up to 50-70 years before. Types and other identified specimens of Trombidiformes (Harpirhynchidae and Trombiculidae), Sarcoptiformes (Acaridae, Atopomelidae, Listrophoridae, and Psoroptidae) and Mesostigmata (Dermanyssidae, Ixodorhynchidae, Laelapidae, Macronyssidae, and Spinturnicidae) deposited at IBSP Collection have been satisfactorily restored.