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Comparative migration, growth and development of Typhlocoelum cucumerinum sisowi in dabbling ducks and Typhlocoelum cucumerinum cucumerinum in diving ducks

Published online by Cambridge University Press:  06 April 2009

Marilyn E. Scott ,
M. E. Rau  and
J. D. McLaughlin
Marilyn E. Scott
Affiliation:
Institute of Parasitology, Macdonald College of McGill University, Macdonald College Post Office, P.Q., CanadaH9X 1C0 Delta Waterfowl Research Station, RR 1, Portage 1a Prairie, Manitoba, CanadaR1N 3A1
M. E. Rau
Affiliation:
Institute of Parasitology, Macdonald College of McGill University, Macdonald College Post Office, P.Q., CanadaH9X 1C0
J. D. McLaughlin
Affiliation:
Delta Waterfowl Research Station, RR 1, Portage 1a Prairie, Manitoba, CanadaR1N 3A1 Department of Biology, Loyola Campus of Concordia University, 7141 Sherbrooke St., West, Montreal, P.Q., CanadaH4B 1R6
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Summary

Experimental infections of mallards (Anas platyrhynchos L.) with Typhlocoelum cucumerinum sisowi (Skrjabin, 1913) and of canvasbacks (Aythya valisineria (Wilson)) with Typhlocoelum cucumerinum cucumerinum (Rudolphi, 1809) revealed significant differences in various parameters of the life-cycle in the definitive host. Both T. c. sisowi and T. c. cucumerinum migrate to the trachea via the abdominal cavity, air sacs and lungs, although T. c. cucumerinum migrate more quickly and more synchronously than T. c. sisowi. Typhlocoelum c. sisowi has a shorter expected life-span than T. c. cucumerinum but grows and reaches maturity more quickly than T. c. cucumerinum. Evidence suggests that T. c. cucumerinum has a higher fecundity than T. c. sisowi. These differences in the patterns of migration, growth and development are related not only to differences between the two host species but also to differences intrinsic to the parasites, and serve to provide biological support for considering them as separate sub-species.

Type
Research Article
Information
Parasitology , Volume 84 , Issue 2 , April 1982 , pp. 333 - 350
Copyright
Copyright © Cambridge University Press 1982

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