Resources related to Wintering Habitat

At Sea Distribution of Spectacled Eiders: A 120-Year-Old Mystery Resolved

ABSTRACT.-The at-sea distribution of the threatened Spectacled Eider (Somateria fischeri) has
remained largely undocumented. We identified migration corridors, staging and molting areas, and
wintering areas of adult Spectacled Eiders using implanted satellite transmitters in birds from
each of the three extant breeding grounds (North Slope and Yukon-Kuskokwim Delta in Alaska and
arctic Russia). Based on transmitter locations, we conducted aerial sur­ veys to provide visual

Effects of off-bottom shellfish aquaculture on winter habitat use by molluscivorous sea ducks.

Žydelis, R., D. Esler, M. Kirk, and W. S. Boyd. 2009. Effects of off-bottom shellfish aquaculture on winter habitat use by molluscivorous sea ducks. Aquatic Conservation: Marine and Freshwater Ecosystems 19:34-42.

The interaction between off bottom suspended Oyster farming and wintering seaducks.

Migration and Habitat Use of Pacific Barrow's Goldeneye

Connectivity among annual cycle stages, rates of site fidelity, and the geographic scale of dispersal are largely unknown for Pacific Barrow’s Goldeneye (BAGO). This precludes managers and researchers from identifying demographically discrete units for population management, and for understanding the scale of inference from field studies. Further, habitats and specific sites that may be particularly important for BAGO are difficult to identify, as this species is not well covered by surveys for most of its annual cycle and range.

Sea Duck Research at the Centre for Wildlife Ecology

The Centre for Wildlife Ecology has several studies underway that address conservation issues affecting sea ducks along the Pacific coast. The issues, species, and populations being studied are shared concerns of the Centre for Wildlife Ecology, the Canadian Wildlife Service, and agency and academic collaborators throughout North America.

Movements And Survival Of Molting And Wintering Harlequin Ducks

Movement or emigration can significantly effect estimates of survival obtained from capture-mark-recapture (CMR) studies. We estimate both movement and survival of a molting and wintering population of Harlequin Ducks (Histrionicus histrionicus) in coastal southwestern British Columbia. Over 150 individuals from two populations 15 km apart were marked with individually identifiable colored tarsal bands. Surveys were conducted at both sites throughout the entire non-breeding period.