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  1. Population dynamics and ecology of freshwater gastropods in the highveld and lowveld regions of Zimbabwe, with emphasis on schistosome and amphistome intermediate hosts

    Population dynamics and ecology of freshwater gastropods in the highveld and lowveld regions of Zimbabwe, with emphasis on schistosome and amphistome intermediate hosts

    Item type: Journal Article • Journal: African Zoology • Authors: G. Chingwena --- Department of Paraclinical Veterinary Studies, Zimbabwe S. Mukaratirwa --- Department of Paraclinical Veterinary Studies, Zimbabwe M. Chimbari --- University of Zimbabwe Lake Kariba Research Station, Zimbabwe T. K. Kristensen --- Danish Bilharziasis Laboratory, Denmark H. Madsen --- Danish Bilharziasis Laboratory, Denmark
    From November 1998 to October 2000, patterns of distribution and seasonal population fluctuations of snails and factors influencing them were investigated in six dams and six streams in the highveld region, and in nine dams in the lowveld region of...
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  2. Quantification of shell banding polymorphism in the East African tree snail <em>Sitala jenynsi</em> (Pulmonata: Ariophantidae)

    Quantification of shell banding polymorphism in the East African tree snail Sitala jenynsi (Pulmonata: Ariophantidae)

    Item type: Journal Article • Journal: African Zoology • Authors: Peter F. Kasigwa --- Department of Zoology, Tanzania John A. Allen --- School of Biological Sciences, University of Southampton, U.K.
    In eastern Africa, populations of the tree snail Sitala jenynsi are monomorphic, dimorphic or trimorphic for the width of the upper brown band on their shells.We measured the variation in the width of this band in several populations and analysed...
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