The value of herring spawning events to spring conditioning of scoters in the Puget Sound Georgia Basin
PSAMP Marine Bird Component
PSAMP Marine Bird Component
While mussel beds can withstand the changing tides, global climate change may cause damage to these diverse ecosystems. As the amount of carbon dioxide in the air increases, so does the amount of carbon dioxide dissolved in seawater. The resulting acidification changes the basic chemistry of the oceans and decreases the growth rate of organisms which rely on dissolved calcium carbonate to build their shells.
Condor 107: 637-647
The Cooper Ornithological Society
At the inception of the SDJV, the lack of understanding about population delineation was seen as one of the highest priority topics for future work; this priority was confirmed during a 2010 review of program direction. Identifying links among breeding, molting, staging, and wintering areas will help improve the design of monitoring surveys and interpretation of trends, and more effectively direct management actions.
The fifteen species of sea ducks (Tribe Mergini) are the most poorly understood group of waterfowl in North America. The most basic biological information is unknown for some species. Few species have reliable population indices or estimates of annual productivity, and much of our knowledge is based on a very few, localized studies. Also, current survey design is unable to accurately estimate sea duck harvest.
The Alaska breeding population of Steller’s
Eider (Polysticta stelleri) was classified as
threatened under the Endangered Species Act in
June 1997 (USFWS 2002). Recent records suggest
that the species’ current breeding range in northern
Alaska has been greatly reduced and now is
restricted mostly to the vicinity of Barrow
(Quakenbush et al. 2002). Results of aerial surveys
in the past decade verify this distribution pattern
(e.g., Larned et al. 1999, Obritschkewitsch et al.
2008, Ritchie and King 2001).
The Canadian Arctic contains much of Canada’s coastal and marine zones, and these areas support
tremendous numbers of marine birds. At the start of the 21st century, the Canadian marine zone is
the subject of much concern as a result of a variety of anthropogenic threats. The Canadian
Wildlife Service (CWS) is the federal agency responsible for the conservation of migratory bird
populations and their habitats in Canada. As part of its mandate, CWS has produced this report
identifying key marine habitat
Sixty seven Abstracts 45 posters presented 12-16 September 2011 in Seward Alaska
Seventy Abstracts of the Third North American Sea Duck Conference,
presented10-14 November 2008 Quebec City, Monteal, Canada
One hundred and five Abstracts of the Second North American Sea Duck Conference presented
in Annapolis Maryland 7-11 November, 2005