Common Goldeneye

Bucephala clangula


Birds of America by John James Audubon GOLDEN-EYE DUCK. [Common Goldeneye.] FULIGULA CLANGULA, Linn. [Bucephala clangula.]

Afton, A.D. and R.D. Sayler. 1982. Social Courtship and pair bonding of Common Goldeneye (Bucephala clangula) wintering in Minnesota. Can. Field-Nat. 96:295- 300. Beil, C.E. 1974. Forest associations of the southern Cariboo Zone. British Columbia. Syesis 7:201-233.

Bengtson, S.A. 1970 Location of nest-sites of Ducks in Lake Myvatn area, north- east Iceland. Oikos 21:218-229

Bengtson, S.A. 1971 Habitat selection of ducks broods in Lake Myvatn area, north- east Iceland. Ornis Scand. 2:17-26. 21:218-229 Brooks, A. 1903. Notes on the birds of the Cariboo district, B.C. Auk 20:277-284.

Bragin, A.B. 1981 Breeding Ecology Of The Goldeneye (Bucephala clangula) in artificial nests. Ornithologica 16:22-32 (In Russia)

Parasitism, Population Dynamics And Hybridization In Cavity- Nesting Seaducks
EADIE, JOHN McA. Department of Wildlife, Fish and Conservation Biology, University of California, Davis, CA 95616,
ANSTEY, DAVID A. Division of Sciences, University of Toronto, Scarborough, ON M1C 1A4
Intraspecific and interspecific brood parasitism occur frequently in waterfowl. We examine the consequences of these behaviors to the population dynamics of Barrow's and Common Goldeneyes during a 10 year study period in central British Columbia. The frequency of parasitism was significantly related to population density and to the availability of nest sites. High levels of parasitism, in turn, resulted in reduced reproductive success of females. Using a simulation model based on field data, we demonstrate that high frequencies of intraspecific parasitism can lead to the extirpation of local populations. Brood parasitism between species leads to the additional complication that parasite offspring may become sexually imprinted on the host species, thereby facilitating cross-mating and interspecific hybridization. We test this hypothesis using (1) a comparative analysis of the Anseriformes and (2) field studies and molecular genetic analyses of interspecific hybridization in goldeneyes. Our results demonstrate that social interactions such as brood parasitism may play an important role in determining the long-term viability of local populations.

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