Patterns of parasitism by Amblyomma rotundatum (Ixodidae) on Rhinella schneideri (Bufonidae) in islands of São Francisco River, Minas Gerais, Brazil

Pesquisa Veterinária Brasileira

Hermes Ribeiro Luz¹  João Luiz Horacio Faccini¹  Hélio Ricardo Da Silva¹ 

关键词: Amblyomma rotundatum;    Rhinella schneideri;    aggregation;    parasite-host relations;    Brazil;    Amblyomma rotundatum;    Rhinella schneideri;    distribuição agregada;    relação parasitária;    Brasil;   

DOI  :  10.1590/S0100-736X2015000600016

来源: SciELO

【 摘 要 】

Abstract: We sampled ticks from specimens of the rococo toad Rhinella schneideriby flannel dragging on two Islands located in the São Francisco River near the Três Marias hydroelectric dam, southeastern Brazil. A total of 120 toads was examined, of which 63 (52.5%) were parasitized only by Amblyomma rotundatumtotaling 96 larvae, 163 nymphs and 134 females. The burden of parasitism ranged from one to 43 ticks, with a mean intensity of infestation of 6.2±5.5 ticks per host. The tick A. rotundatumexhibited highly aggregated distribution. Peak abundance of larvae and nymphs occurred in the dry season (May to September), whereas peak abundance of females occurred in the wet season (October to April). We collected most ticks near the head and hind limbs of R. schneideri. The finding of two engorged A. rotundatumnymphs in the same resting places of two toads and the absence of this species in the dragged areas suggest a nidicolous behavior at the studied site.

【 授权许可】

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