Lack of parthenogenesis by Amblyomma cajennense (Acari: Ixodidae)
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چکیده
منابع مشابه
Lack of parthenogenesis by Amblyomma cajennense (Acari: Ixodidae).
Some reproductive parameters of adult stages of Amblyomma cajennense ticks were studied. The capacity of virgin females to reproduce by parthenogenesis was evaluated, during an experimental infestation, in absence of males, on a horse (Equus cabalus). Ticks were spread either completely free or in limited sites on the body of the animal. The engorged virgin females showed longer feeding periods...
متن کاملCutaneous hypersensitivity induced in rabbits by extracts of the tick Amblyomma cajennense (Acari: Ixodidae).
The cutaneous hypersensitivity test was used to correlate host resistance to ticks and type of reactions elicited by Aomblyomma cajennense (Fabricius, 1787) tick extract in rabbits. Rabbits were divided into 3 groups of 2 animals each: naive, pre-infested and control. Cutaneous hypersensitivity was induced by intradermal inoculation of 25 microg extract in 0.03 ml of phosphate buffered saline (...
متن کاملInfluence of photoperiod and temperature on the larval behavioral diapause of Amblyomma cajennense (Acari: Ixodidae).
Larval behavioral diapause was shown to be the major factor controlling the 1-yr generation pattern of Amblyomma cajennense (F.) (Acari: Ixodidae) in Brazil. During fieldwork, this behavior was shown to coincide with long daylength (>12 h) and high mean ground temperature (approximately =25 degrees C), which prevail during spring-summer in Brazil. The current study evaluated biological paramete...
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This study was developed to evaluate the repellent activity of N,N-diethyl-3-methylbenzamide (DEET) against Amblyomma cajennense nymphs. Two repellent bioassays were compared and the effective concentration and repellent time were calculated. The fingertip test was accomplished to evaluate in vivo four concentrations of the compound (0.200; 0.100; 0.050 and 0.025 mg.cm⁻²) and the filter-paper b...
متن کاملWild birds as hosts of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae).
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 ...
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ژورنال
عنوان ژورنال: Memórias do Instituto Oswaldo Cruz
سال: 2002
ISSN: 0074-0276
DOI: 10.1590/s0074-02762002000600016