64 research outputs found
Suscetibilidade de Rhipicephalus (Boophilus) microplus a carrapaticidas em Mato Grosso do Sul, Brasil
Seasonal dynamics of Rhipicephalus sanguineus (Acari: Ixodidae) in dogs from a police unit in Goiânia, Goiás, Brazil
STRUCTURE AND CHANGES OF THE SALIVARY GLAND OF FEMALE DERMACENTOR SILVARUM OLENEV (ACARI: IXODIDAE)
Evidence for a mounting sex pheromone in the brown ear tick Rhipicephalus appendiculatus, Neuman 1901 (Acari: Ixodidae)
Methyl 3-chloro-4-methoxybenzoate, a new candidate semiochemical inhibiting copulation behaviour of Ixodes ricinus (L.) males
Responses of the ticks Amblyomma hebraeum and A. variegatum to known or potential components of the aggregation-attachment pheromome. III. Aggregation
The effect of female body size on male mounting behaviour in Dermacentor variabilis and D. andersoni
This study was undertaken to determine if body size of female ticks was an important factor in eliciting the mating behaviour of Dermacentor variabilis and D. andersoni males. Dummy female ticks (DFTs) representing varying sizes of feeding females were prepared from plastic beads. Size of DFT was shown to be important in determining both the time spent by males in contact with DFTs and the extent of male mating response released. Dermacentor varlabilis males preferred the smaller‐sized DFT, whereas D. andersoni males preferred the larger sizes. Males of both species were able to discriminate between size of DFT only when mounting sex pheromone (MSP) was present. Size of the DFT was more important than the composition of the MSP extract in determining the time males spent in contact with DFTs. Males of both species were sensitive to variations in concentration of extract, and spent 2–6 times longer in contact with DFTs when the concentration was optimal than when it was not. No significant difference in the male's mating response was seen in response to variation in concentration of heterospecific extract. Male mating response, i.e. the behaviour of the male as it progresses through the initial contact, climbing onto the dorsal surface and turning onto the venter, was shown not to be dependent upon how long the male spent in contact with the DFT. Male D. andersoni had a much lower mating response to DFTs than D. variabilis males, suggesting that some further stimulus may be required
Biosynthesis, production site, and emission rates of aggregation-attachment pheromone in males of twoAmblyomma ticks
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