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Mating interactions between Schistosoma haematobium and S. mansoni

Published online by Cambridge University Press:  11 April 2024

B.L. Webster ,
V.R. Southgate  and
L-A. Tchuem Tchuenté
B.L. Webster
Affiliation:
Biomedical Parasitology Division, Department of Zoology, The Natural History Museum, Cromwell Road, South Kensington, London, SW7 5BD, UK
V.R. Southgate*
Affiliation:
Biomedical Parasitology Division, Department of Zoology, The Natural History Museum, Cromwell Road, South Kensington, London, SW7 5BD, UK
L-A. Tchuem Tchuenté
Affiliation:
General Biology Laboratory, Faculty of Sciences, University of Yaoundé 1, PO Box 812, Yaoundé, Cameroon
*
*Author for correspondence. Fax: 0171 938 9249 E-mail: v.southgate@nhm.ac.uk
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Abstract

Schistosoma haematobium and S. mansoni are two medically important schistosomes, commonly occurring sympatrically in Africa and so potentially able to infect the same human host. Experiments were designed to study the mating behaviour of these two species in mixed infections in hamsters. Analysis of the data obtained showed that both heterospecific and homospecific pairs readily form. No significant difference was seen between the two species in their ability in forming pairs, however, S. mansoni showed a greater homospecific mate preference. Analysis of the data using the Mantel-Haenszel test suggests that mating competition does occur between S. haematobium and S. mansoni, the former being the more dominant species. Both species appeared to be able to change mate, with S. haematobium showing a greater ability in taking S. mansoni females away from S. mansoni males when introduced into a pre-established S. mansoni infection highlighting the competitiveness of S. haematobium. The significance of the results is discussed in relation to the epidemiological consequences occurring in Senegal, and other areas where both species are sympatric.

Type
Research Article
Information
Journal of Helminthology , Volume 73 , Issue 4 , April 1999 , pp. 351 - 356
Copyright
Copyright © Cambridge University Press 1999

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