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  • 1
    ISSN: 1572-9702
    Keywords: Rhipicephalus appendiculatus ; ticks ; diapause ; voltinism ; physiological age
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Newly-moulted adults of three Rhipicephalus appendiculatus stocks, originating from Kenya, Zambia and Zimbabwe, were kept in different photoperiods (12h : 12h, 13h : 11h and 14h : 10h light : dark). The stock originating from Kenya showed almost no behavioural diapause in any of these day lengths, whereas virtually all individuals of the Zimbabwean stock entered a behavioural diapause irrespective of day length. Adults from the Eastern Province of Zambia, a transition zone between the multivoltine phenology in equatorial Africa and the univoltine in southern Africa, exhibited a photoperiod-dependent diapause response. The possible mechanisms of diapause regulation and their origin are discussed.
    Type of Medium: Electronic Resource
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