Resources related to Status

Implications of Demographic Uncertainty for Harvest Management of North American Sea Ducks

In 2010, the Sea Duck Joint Venture (SDJV) identified the need for improved science support for harvest and habitat management of North American sea ducks.
In order to prioritize monitoring and research needs in support of harvest management, we applied a Prescribed Take Level (PTL) framework to assess the influence of uncertainty about sea duck demographic
parameters on comparisons of observed and allowable harvest estimates. We focused on 7 populations of North American sea ducks: the American subspecies of common eider (Somateria mollissima dresseri

Common Eider Duckling Survival Study

The Gulf of Maine is changing, and wildlife species that breed, nest, raise young and winter there have faced considerable
change in recent years. This was no more evident than in 2012 when ocean temperatures rose an incredible two
degrees, setting the wheels in motion for significant changes in complex marine food webs. Common eider populations,
too, must adapt to a significantly altered food web, as numerous studies report widespread losses of the once-abundant

Fitting statistical distributions to seaduck count data: Implications for survey design and abundance estimation

Determining appropriate statistical distributions for modeling
animal count data is important for accurate estimation of abun-
dance, distribution, and trends. In the case of sea ducks along the
U.S. Atlantic coast, managers want to estimate local and regional
abundance to detect and track population declines, to define
areas of high and low use, and to predict the impact of future
habitat change on populations. In this paper, we used a modified
marked point process to model survey data that recorded flock

Sea Duck Joint Venture Implementation Plan 201 5 - 201 7

PRIORITIES 2015–2017 Priorities set out in this Implementation Plan are designed to help meet the SDJV mission,
which is to “...promote the conservation of all North American sea ducks through partnerships by providing greater
knowledge and understanding for effective management.”
The 2014-2018strategic plan reflects a significant shift in focus for the SDJV, from a broad-based science program
to a more focused program intended to provide information most needed by managers to make informed

Sea Duck Joint Venture Strategic Communications Plan 2015-2019

The mission of the Sea Duck Joint Venture(SDJV)is to promote the conservation of North American sea ducks through partnerships by providing greater knowledge
and understanding for effective management. SDJV focuses on the 15 species of North American sea ducks on their coastal water habitat for migration and wintering as well as boreal forest and tundra habitat for nesting. Since the JV’s founding in 1998, the four pillars of its work have included science, communications, funding, and conservation.

Fitting statistical distributions to seaduck count data: Implications for survey design and abundance estimation

Determining appropriate statistical distributions for modeling animal count data is important for accurate estimation of abundance,distribution,and trends.In the case of
seaducks along the U.S.Atlantic coast,managers want to estimate local and regional abundance to detect and track population declines, to define

Wintering Sea Duck Distribution Along the Atlantic Coast of the United States

Although monitoring data for sea ducks (Tribe Mergini) are limited, current evidence suggests that four of the most common species wintering along the eastern coast of the United States—long-tailed duck Clangula hyemalis, white-winged scoter Melanitta fusca, surf scoter Melanitta perspicillata, and black scoter Melanitta americana—may be declining, while the status of American common eider Somateria mollissima dresseri is uncertain.

Managing North American Waterfowl in the Face of Uncertainty

Informed management of waterfowl (or any animal population), requires management goals and objectives, the ability to implement management actions, periodic information about population and goal related variables, and knowledge of effects of management actions on populations and goal related variables. In North American international Treaties mandate a primary objective of protecting migratory bird populations, with a secondary objective of providing hunting opportunity in a manner compatible with such protection.

Distribution and Abundance of Steller's Eider's In The Kodiak Archipelago, Alaska Jan-Feb 2001

Concerns about apparent declines in Steller's eider (Kertell 1991) and other sea duck populations
prompted personnel of the Kodiak National Wildlife Refuge to initiate an annual winter aerial
survey to assess and monitor sea duck populations.The fourth Kodiak aerial Steller's eider winter survey was flown from 29 January to 2 February
2001, covering most of the eastern coastal portion of the Kodiak Archipelago. The survey design
consisted of a single flight parallel to the shoreline between 200 and 400 meters offshore, with s-

Testing the feasibility and effectiveness of a fall Steller’s eider molt survey in southwest Alaska

Since 1992, U.S. Fish and Wildlife Service, Migratory Bird Management has flown a spring
aerial survey in southwest Alaska to monitor trends in the Pacific population of Steller’s eiders
and improve understanding of habitat use and timing of spring migration. Due to constraints with
the traditional spring survey, we sought to test
the feasibility of an alternative monitoring approach using photography of fall molting flocks
along the Alaska Peninsula. Our goal was to determine whether different survey timing and methods

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