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Title: Polymorphismof the tropical butterfly,danaus chrysippus l., in Africa
Authors: Gordon, I.J.
Keywords: Tropical butterfly
tropical danaus chrysippus
Issue Date: 1984
Publisher: The Genetical Society of Great Britain
Abstract: The polymorphism of Danaus chrysippus is anomalous since it is a distasteful butterfly. In a field study of the B locus polymorphism in Ghana, significant changes in the morph frequencies were recorded over eighteen months at Cape Coast. There were also significant differences between localities. There was some evidence that brown morphs are favoured by wet conditions, and that orange forms have higher survival rates as caterpillars. There were no differences between forms in larval foodplants, sex ratio, body size, wing damage, mating success, or in the effects of weather on adult activity. There was however, strong assortative mating between forms. Crosses with Kenyan females gave aberrant segregations for the sex chromosomes and the C locus. The results are discussed with regard to the hypothesis that polymorphism arose as a result of the overlapping of previously isolated geographical races. © 1984 The Genetical Society of Great Britain.
Description: 583-593p:, ill
ISSN: 0018067X
Appears in Collections:Department of Entomology & Wildlife

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