| gizzard nematodes of canada geese wintering in southern illinois. | gizzards from 64 hunter-shot canada geese (branta canadensis) were collected in southern illinois (usa) in december 1991 and january 1992 to determine the prevalence and intensity of gizzard nematodes. three species of gizzard nematodes were recovered: amidostomum anseris, amidostomum spatulatum, and epomidiostomum crami. the prevalence of infection was 98%. mean intensity was 17.8 nematodes per host and was significantly greater for immature geese (40.3 nematodes/host) than for adult geese (10. ... | 1995 | 8592349 |