Acaros de pena e carrapatos associados a Turdus albicollis em area de Mata Atlantica da Ilha Grande, Rio de Janeiro, Brasil

Ácaros carr (Acari)
(Av
Ácaros de penas e carrapatos (Acari) associados a Turdus albicollis Vieillot (Aves,
Muscicapidae) em uma área de Mata Atlântica da Ilha Grande, Rio de Janeiro, Brasil
Muscicapidae)
área
Grande,
Janeir Brasil aneiro, Alline Storni 1, Maria A. S. Alves 1 & Michel P. Valim

2

1

Departamento de Ecologia, Universidade do Estado do Rio de Janeiro. Rua São Francisco Xavier 524, Maracanã,
20550-011 Rio de Janeiro, Rio de Janeiro, Brasil. E-mail: [e-mail]

2

Departamento de Entomologia, Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Avenida Brasil 4365, Manguinhos,
21045-900 Rio de Janeiro, Rio de Janeiro, Brasil.
ABSTRACT. Feather mites and ticks (Acari) associated to Turdus albicollis Vieillot (Aves Muscicapidae) in
(Acari)
urdus
(Aves, Muscicapidae) area orest
Grande
ande, aneiro Brasil. an area of Atlantic Forest at Ilha Grande Rio de Janeiro , Brasil. Parasitism is an important mechanism affecting populations and communities. The purpose of this study was to investigate the ectoparasites fauna living on the body of the white-necked trush, Turdus albicollis Vieillot, 1818, and to evaluate if the host body mass is affected by these parasites. Turdus albicollis were monthly captured at Ilha Grande, Rio de Janeiro, from July
1999 to June 2000 in an area of Atlantic Forest. The birds were individualy marked, weighed and carefully checked to record and quantify the presence of ectoparasites. Parasite abundance and location on the bird’s body were recorded. In 54 individuals of T. albicollis sampled, two ectoparasite species were found. The prevalence of the feather mite Pterodectes turdinus Berla, 1959, and the tick Amblyomma longirostre Koch, 1844 was 72,2% and
27,8%, respectively. The monthly abundance of P. turdinus was related to the dry and wet months, and it was significantly higher in the dry months than in the wet months. There was no significant relationship between hosts body mass (g) and