"The northeast coast of James Bay was chosen for study because of its importance as a staging area for migrating geese and because of the development of the La Grande hydroelectric complex, the main structures of which are along the La Grande River, which empties into the northeastern part of James Bay. In 1990 and 1991, use of coastal habitats by Canada Geese Branta canadensis and Atlantic Brant B. bernicla hrota was studied along the northeast coast of James Bay"--Abstract.
"We conducted aerial and ground surveys along the northeast coast of James Bay, from the Au Castor River to Point Louis-XIV, in 1990-92. Ducks were encountered in abundance throughout the spring, summer, and fall. Overall, 21 different duck species were recorded"--Abstract.
The best-selling and authoritative reference book on waterfowl has been fully revised and updated by one of the world’s most respected waterfowl biologists. Honorable Mention for the PROSE Award for Excellence, Multivolume/Science of the Association of American Publishers Ducks, Geese, and Swans of North America has been hailed as a classic since the first edition was published in 1942. A must-have for professional biologists, birders, waterfowl hunters, decoy collectors, and wildlife managers, this fully revised and updated edition provides definitive information on the continent's forty-six species. Maps of both winter and breeding ranges are presented with stunning images by top waterfowl photographers and the acclaimed original artwork of Robert W. (Bob) Hines. Originally authored by F. H. Kortright and later revised by Frank Bellrose, this latest edition, which has been meticulously updated by renowned waterfowl biologist Guy Baldassarre, continues the legacy of esteemed authors. Each species account contains in-depth sections on: • identification • distribution • migration behavior • habitat • population status • breeding biology • rearing of young • recruitment and survival • food habits and feeding ecology • molts and plumages • conservation and management To facilitate identification, the species accounts also include detailed illustrations of wings. An appendix contains comparative illustrations of ducklings, goslings, and cygnets. This edition of Ducks, Geese, and Swans consists of two volumes, printed in full color, and packaged in a slipcase, along with a CD containing references and additional maps.
The eight currently recognized species of North American geese are part of a familiar group of birds collectively called waterfowl, all of which are smaller than swans and generally larger than ducks. They include the most popular of our aquatic gamebirds, with several million shot each year by sport hunters. Our two most abundant waterfowl, the Canada goose and snow goose, have populations collectively totaling about 15 million individuals. Like swans, the lifelong pairbonding of geese, their familial care, and prolonged social attachment to their offspring are legendary. Their seasonal migratory flights sometimes span thousands of miles, and the sight of their long, wavering flight formations are as much the symbols of seasonal change as are the spring songs of cardinals or the appearance of autumnal leaf colors. This book describes each species' geographic range and subspecies, its identification traits, weights and measurements, and criteria for its age and sex determination. Ecological and behavioral information includes each species' breeding and wintering habitats, its foods and foraging behavior, its local and long distance movements, and its relationships with other species. Reproductive information includes each species' age of maturity, pair-bond pattern, pair-forming behaviors, usual clutch sizes and incubation periods, brooding behavior, and postbreeding behavior. Mortality sources and rates of egg, young, and adult losses are also summarized, and each species' past and current North American populations are estimated. In addition to a text of nearly 60,000 words, the book includes 8 maps, 21 line drawings, and 28 photographs by the author, as well as more than 700 literature citations.
In this beautifully illustrated guide, two practicing wildlife biologists describe the life histories of forty-five species of ducks, geese, and swans that occur in Texas. For common species and those that breed in the state, each account begins with an interesting fact (such as, “Red-breasted Mergansers have been clocked at over 80 mph, the fastest recorded flight speed for a duck . . .”) and provides information on Texas distribution and harvest, population status, diet, range and habitats, reproduction, and appearance. Exquisite photographs, informative distribution maps, and a helpful source list accompany the species descriptions, and the book offers a glossary and full bibliography for those who want to explore the literature further. With the degradation and disappearance of the inland and coastal habitats that these birds depend upon, the natural history of these waterfowl species provides a vital reminder of the interconnectedness and crucial importance of all wetlands. Birders, biologists, landowners, hunters, outdoor enthusiasts, and all those interested in the health and preservation of our coastal and inland wetland resources will enjoy and learn from this book.
This book arose from the need to develop accessible research-based case study material which addresses contemporary issues and problems in the rapidly evolving field of human ecology. Academic, political, and, indeed, public interest in the environmental sciences is on the rise. This is no doubt spurred by media coverage of climate change and global warming and attendant natural disasters such as unusual drought and flood conditions, toxic dust storms, pollution of air and water, and the like. But there is also a growing intellectual awareness of the social causes of anthropogenic environmental impacts, political vectors in determining conser- tion outcomes, and the role of local representations of ecological knowledge in resource management and sustainable yield production. This is reflected in the rapid increase of ecology courses being taught at leading universities in the fa- growing developing countries much as was the case a decade or two ago in Europe and North America. The research presented here is all taken from recent issues of Human Ecology: An Interdisciplinary Journal. Since the journal itself is a leading forum for cont- porary research, the articles we have selected represent a cross-section of work which brings the perspectives of human ecology to bear on current problems being faced around the world. The chapters are organized in such a way to facilitate the use of this volume either to teach a course or to introduce an informed reader to the field.
Presents a synthesis on the ecology, status, and conservation of marine and shoreline birds of the Queen Charlotte Islands, compiling papers on various disciplines to provide a review of what is currently known about the Islands' marine biology, with a particular emphasis on birds. The papers are presented in five sections: the physical and biological environment and prey organisms, including physical oceanography, zooplankton distribution and availability, and marine fishes as prey; nesting populations of marine birds and distribution of birds at sea; distribution and association of marine waterfowl, including papers on the distribution and ecology of Branta bernicla; seasonality and nesting of shorebirds; and introduced predators and toxic chemicals.
This paper is part of a series that reports the peer-reviewed results of original research carried out by members of the Canadian Wildlife Service or supported by the Service. Included in the series are monitoring studies of Canadian species, natural histories, status reports on human hunting activities, habitat research, and the effects of human activities and environmental toxins on wildlife.
