Wild birds as hosts of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae)

Memórias do Instituto Oswaldo Cruz

Rosario Rojas¹  Miguel Ângelo Marini²  Maria Teresa Zanatta Coutinho¹ 

[1] ,Universidade Federal de Minas Gerais

关键词: Amblyomma cajennense;    birds;    wild hosts;    larvae;    nymphs;   

DOI  :  10.1590/S0074-02761999000300007

来源: SciELO

【 摘 要 】

We evaluated the prevalence, mean intensity and relative density of ticks in 467 wild birds of 67 species (12 families) from forest and cerrado habitats at two protected areas of Minas Gerais, between March and September 1997. Ticks collected (n=177) were identified as larvae and nymphs of Amblyomma cajennense and four other species of Amblyomma. We report for the first time 28 bird species as hosts of the immature stages of A. cajennense, demonstrating the lack of host specificity of the larvae and nymphs. A. cajennense had 15% prevalence on birds, with a mean infestation intensity of 0.37 ticks per host sampled, and 2.5 ticks per infested bird. Prevalence varied in relation to host species, diet and between birds from forests at two successional stages. There were no differences in relation to host forest dependence, participation in mixed flocks of birds, and nest type constructed. A. cajennense is a species of medical and veterinary importance, occurring on domestic animals but is known little of its occurrence on wildlife.

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