Resources related to Distribution

Food Habits of Sea Ducks Atlantic Maritimes

Numbers of scoters (black, surf, and white-winged) and long-tailed ducks wintering in the Maritime provinces of Canada and the Chesapeake Bay (MD and VA, USA) have noticeably declined in recent years. Common goldeneye populations have also declined. Changes in the location of these seaduck populations have also been observed and have given managers new concerns. Many factors related to human population increases have been implicated in causing changes in the distribution and abundance of seaducks.

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.

2015 Kodiak Island Cooperative Goldeneye Nest Box Project

During the period 12 May to 20 Sept, 2015, nest boxes located at eight different lakes on the Kodiak road system and Karluk Lake on the Kodiak National Wildlife Refuge were checked by the author(s). Three of the original 8 Buskin Lake boxes were moved to new locations on Buskin Lake in 2015. Also another new road system nest box was added at Nyman Lake, located on the U.S. Coast Guard base in 2015. However, Lake Rose Tead nest box, RT-1, was taken down, keeping the total number of Project boxes available in 2015 at 47.

Disturbance effects of high-speed ferries on wintering sea ducks

Human offshore activities are increasingly threatening waterbird conservation interests. The impacts of disturbance by high-speed ferries on Common Eiders
Somateria mollissima and Common Scoters Melanitta nigra were studied at a wintering site in the Kattegat Sea, Denmark. Spatial patterns of winter site
use, close-range distribution patterns relative to ferry passages and escape distances were examined using aerial surveys and ferry-based observations.

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

2014 Kodiak Island Cooperative Goldeneye Nest Box Project

During the period 26 May to 6 Aug, 2014, nest boxes placed on seven different lakes along the Kodiak road system and Karluk Lake on the Kodiak National Wildlife Refuge were checked by the author(s). Two new road system nest boxes were added in 2014. One was added to Buskin Lake on 5 Feb, and another box placed on Aurel Lake 1 April. Both lakes were still ice covered. The added boxes increased the total number of Project boxes available in 2014 to 47 nest boxes.

A group movement model for waterfowl aggregation

This paper presents a simple stochastic model of the dynamics of waterfowl aggregation, investigates model fit, and considers
variance in the model’s parameter estimators. The model, a marked-point process with four parameters, describes a behavioral
process defined by the movements of animal groups. My approach provides new methods to explore animal social behavior. I
illustrate the fit of the model to field observations of 39 aggregations observed when they were not at equilibrium and outline a

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.

A Management Plan for Barrows Goldeneye Bucephala islandica Eastern Population

The world distribution of Barrow’s Goldeneye (Bucephala islandica) consists of three
separate populations: 150 000 to 200 000 birds in western North America (Eadie et al 2000),
a resident population of 2000 in Iceland (Gardarsson 1978), and approximately 4500 birds in
eastern North America (Savard and Dupuis 1999; Robert et al 2000a). The breeding range is
discontinuous in North America and is largely restricted to northwestern North America, where
more than 90% of the world’s population breeds (del Hoyo et al 1992). Little is known of the