title: Incidence of malaria in a wintering population of canvasbacks (Aythya valisineria) on Chesapeake Bay.
abstract: 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.
authors.affiliation: Bureau of Sport Fisheries and Wildlife Patuxent Wildlife Research Center Laurel, Maryland 20810, USA.
authors.forename: R M
authors.initials: RM
authors.lastname: Kocan
authors.forename: J O
authors.initials: JO
authors.lastname: Knisley
mesh_terms: D000818:Animals; D004372:Ducks; D005260:Female; D015994:Incidence; D008289:Malaria, Avian / Q000453:epidemiology*; D008297:Male; D008396:Maryland / Q000453:epidemiology; D012621:Seasons; D012737:Sex Factors