{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T08:28:03Z","timestamp":1790411283399,"version":"4.1.0"},"reference-count":43,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2024,4,12]],"date-time":"2024-04-12T00:00:00Z","timestamp":1712880000000},"content-version":"unspecified","delay-in-days":7529,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Helminthol."],"published-print":{"date-parts":[[2003,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Schistosoma mansoni<\/jats:italic> and <jats:italic>S. intercalatum<\/jats:italic>, two schistosomes from different evolutionary lineages, are parasitic in humans and therefore able to co-infect the same host where they occur sympatrically in Africa. Previous studies of mating interactions between these species in mice, using the Lower Guinea strain of <jats:italic>S. intercalatum<\/jats:italic>, have demonstrated the competitive dominance of <jats:italic>S. mansoni<\/jats:italic> over <jats:italic>S. intercalatum<\/jats:italic> in terms of pairing ability, which is potentially an important mechanism restricting the distribution of <jats:italic>S. intercalatum<\/jats:italic> in Africa. The study presented here examines the mating interactions in mice between <jats:italic>S. mansoni<\/jats:italic> and the Zaire (Democratic Republic of Congo) strain of <jats:italic>S. intercalatum<\/jats:italic>, which differs from the Lower Guinea strain in many biological characteristics. Analysis of the data showed a preponderance of intraspecific pairs over interspecific, demonstrating a specific mate preference system for both species. Mating competition between these species and the ability of males of both species to effect a change of mate by pulling paired females away from their partners was indicated. Comparisons are made between the competitive mating abilities of both strains of <jats:italic>S. intercalatum<\/jats:italic> relative to those of <jats:italic>S. mansoni<\/jats:italic>, with the data suggesting that <jats:italic>S. mansoni<\/jats:italic> is competitively dominant to <jats:italic>S. intercalatum<\/jats:italic> (Zaire) in sequential infections but to a lesser extent than for <jats:italic>S. intercalatum<\/jats:italic> (Lower Guinea). Additional factors which may contribute to the confinement of <jats:italic>S. intercalatum<\/jats:italic> (Zaire) to the Democratic Republic of Congo are discussed.<\/jats:p>","DOI":"10.1079\/joh2002165","type":"journal-article","created":{"date-parts":[[2003,8,16]],"date-time":"2003-08-16T09:37:57Z","timestamp":1061026677000},"page":"209-218","source":"Crossref","is-referenced-by-count":9,"title":["Interactions between <i>Schistosoma intercalatum<\/i> (Zaire strain) and <i>S. mansoni<\/i>"],"prefix":"10.1017","volume":"77","author":[{"given":"C.L.","family":"Cosgrove","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V.R.","family":"Southgate","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2024,4,12]]},"reference":[{"key":"S0022149X00702446_ref030","doi-asserted-by":"publisher","DOI":"10.1016\/0020-7519(93)90139-P"},{"key":"S0022149X00702446_ref025","doi-asserted-by":"publisher","DOI":"10.1007\/BF00930749"},{"key":"S0022149X00702446_ref039","first-page":"55","volume-title":"Genetic aspects of host\u2013parasite relationships","author":"Wright","year":"1976"},{"key":"S0022149X00702446_ref008","doi-asserted-by":"publisher","DOI":"10.1016\/S0035-9203(34)90066-3"},{"key":"S0022149X00702446_ref020","first-page":"719","article-title":"Statistical aspects of analysis of data from retrospective studies of disease","volume":"22","author":"Mantel","year":"1959","journal-title":"Journal of the National Cancer Institute"},{"key":"S0022149X00702446_ref019","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182000052689"},{"key":"S0022149X00702446_ref011","doi-asserted-by":"publisher","DOI":"10.1017\/S0022149X0000506X"},{"key":"S0022149X00702446_ref003","first-page":"559","article-title":"Schistososoma hematobium in Libreville, Gabon. 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