Incidence of malaria in a wintering population of canvasbacks (Aythya valisineria) on Chesapeake Bay.
Canvasback ducks wintering on Chesapeake Bay had a 6% incidence of Leucocytozoon simondi and 2% incidence of Haemoproteus. Subinoculation of whole blood into Pekin ducklings produced a Plasmodium infection rate of 31%. Females were more frequently infected (12/22) than males (15/68). The parasite was identified as P. circumflexum.
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Bureau of Sport Fisheries and Wildlife Patuxent Wildlife Research Center Laurel, Maryland 20810, USA.
Knisley
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D000818:Animals; D004372:Ducks; D005260:Female; D015994:Incidence; D008289:Malaria, Avian / Q000453:epidemiology*; D008297:Male; D008396:Maryland / Q000453:epidemiology; D012621:Seasons; D012737:Sex Factors