Download or read book The North American Geese written by Paul Johnsgard and published by Lulu.com. This book was released on 2016-08-23 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The North American Sea Ducks written by Paul Johnsgard and published by Lulu.com. This book was released on 2016-11-09 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 21 species of sea ducks are one of the larger subgroups (Tribe Mergini) of the waterfowl family Anatidae, and the 16 species (one historically extinct) that are native to North America represent the largest number to be found on any continent, and also the largest number of endemic sea duck species native to any continent. Although generally not important as game birds, the sea ducks include some economically important birds such as the eiders, the basis for the Arctic eiderdown industry and a historically important food source for some Native American cultures. They also include what is probably the most northerly breeding species of all waterfowl and an icon of Arctic bird life, the long-tailed duck. The sea ducks also include species having some of the most complex and diverse pair-forming postural and acoustic displays of all waterfowl (goldeneyes and bufflehead), and some of the deepest diving species of all waterfowl (scoters and long-tailed duck). Sea ducks are highly prone to population disasters caused by oil spills and other water contaminants and, like other seabirds, are among the first bird groups that are being affected by current global warming trends in polar regions. This book is an effort to summarize succinctly our current knowledge of sea duck biology and to provide a convenient survey of the vast technical literature on the group, with over 900 literature references. It also includes 90,000 words of text (more than 40 percent of which is new), 15 updated range maps, 11 black & white and 20 color photographs, over 30 ink drawings, and nearly 150 sketches. Lastly, the North American sea ducks include the now extinct Labrador duck, the only northern hemisphere waterfowl species to have gone extinct in modern times. I have gratefully reprinted a Labrador duck watercolor by Sir Peter Scott. Considering recent population crashes in other sea ducks, such as the Steller's eider and spectacled eider, it should also offer a sobering reminder of the fragility of our natural world and its inhabitants, including us.
Download or read book Chukchi Sea Planning Area Oil and Gas Sale 193 and the Seismic Surveying Activities in the Chukchi Sea written by and published by . This book was released on 2007 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ducks Geese and Swans of North America written by Guy Baldassarre and published by JHU Press. This book was released on 2014-11-15 with total page 1183 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Birds of the Aleutian Islands Alaska written by Daniel D. Gibson and published by . This book was released on 2007 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Ornithology Volume 17 written by Charles F. Thompson and published by Springer Science & Business Media. This book was released on 2010-09-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.
Download or read book Birds of the Chukchi Peninsula and Wrangel Island written by Leonid Aleksandrovich Portenko and published by . This book was released on 1989 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution Ecology Conservation and Management of Hawaiian Birds written by J. Michael Scott and published by . This book was released on 2001 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fauna of the Aleutian Islands and Alaska Peninsula written by Olaus Johan Murie and published by . This book was released on 1959 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematic account of the results of a survey made in 1936 and 1937 to aid supervision of the Aleutian Islands National Wildlife Refuge. (AB60374).
Download or read book Aleutian Islands National Wildlife Refuge written by and published by . This book was released on 1966 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Toxicology and Chemistry written by and published by . This book was released on 2007 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Birds of the Seward Peninsula Alaska written by Brina Kessel and published by . This book was released on 1989 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bird watchers, ornithologists, and wildlife managers will find in Birds of the Seward Peninsula, Alaska virtually all the information available about Seward Peninsula birds - from rare visitants to overwinterers and regular summer residents. The book is packed with details of distribution and abundance, habitats, nesting and feeding habits, and more, both for birds common to our continent and those that come from Asia.
Download or read book Effects of Climate Change on Birds written by Anders Pape Møller and published by Oxford University Press, USA. This book was released on 2010-08-12 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Effects of Climate Change on Birds provides an exhaustive and up-to-date synthesis of the science of climate change as it relates to birds." -- Back cover.
Download or read book Academic Writing for Graduate Students written by John M. Swales and published by University of Michigan Press ELT. This book was released on 1994 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Course for Nonnative Speakers of English. Genre-based approach. Includes units such as graphs and commenting on other data and research papers.
Download or read book The Whooper Swan written by Mark Brazil and published by A&C Black. This book was released on 2010-01-31 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first ever monograph on the Whooper Swan. This species is found in the northern Palearctic and is the world's most widely distributed swan. It is a familiar bird in northern Europe and across Asia to the far East, and is particularly noticeable when migrating between breeding and wintering grounds in large, noisy flocks. This migratory behaviour makes it a powerful symbol of seasonal change, and this, together with the bird's beautiful appearance, make it a popular subject of folklore and legend. For much of its range the Whooper Swan is the archetypal 'wild swan', and its voice and appearance is deeply evocative of time and place. This book looks at all aspects of the life and times of this enchanting bird. The book includes chapters on taxonomy, population, range and distribution, diet, breeding biology, behaviour, migratory behaviour and longevity, as well as taking a look at the swan's associations with our own species in history and legend and throughout its geographic range. This book is a brilliantly readable and exhaustively researched monograph. It is illustrated throughout with numerous photographs and line drawings, illustrating various aspects of the species' behaviour and morphology. It will appeal greatly to all those with an interest in birdwatching, especially those who already know something of this wonderful and inspirational bird.
Download or read book Environmental Aspects of Zoonotic Diseases written by Robert Armon and published by IWA Publishing. This book was released on 2012-01-31 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Aspects of Zoonotic Diseases provides a definitive description, commentary and research needs of environmental aspects related to zoonotic diseases. There are many interrelated connections between the environment and zoonotic diseases such as: water, soil, air and agriculture. The book presents investigations of these connections, with specific reference to environmental processes such as: deforestation, floods, draughts, irrigation practices, soil transfer and their impact on bacterial, viral, fungal, and parasitological spread. Environmental aspects such as climate (tropical, sub-tropical, temperate, arid and semi-arid), developed and undeveloped countries, animal (domestic and wild) traffic animal border crossing, commercial animal trade, transportation, as well geography and weather on zoonosis, are also discussed and relevant scientific data is condensed and organized in order to give a better picture of interrelationship between the environment and current spread of zoonotic diseases. Altogether, the book presents a remarkable and a vast amount of potential future research directions based on the link: environment-vectors-pathogens-humans. The most up-to-date source of information on this increasingly important cross-disciplinary subject, Environmental Aspects of Zoonotic Diseases will be invaluable for environmentalists, veterinarians, medical staff, environmental engineers, government agencies and consultants working in this field. Authors: Prof. Robert Armon, Technion (Israel Institute of Technology), Haifa, Israel, Dr. Uta Cheruti, Technion (Israel Institute of Technology), Haifa, Israel
Download or read book The Ducks Geese and Swans of North America written by Francis H. Kortright and published by . This book was released on 1942 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
