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Population Ecology Of Breeding Pacific Common Eiders On The Yukon Kuskokwim Delta Alaska
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Book Synopsis Population Ecology of Breeding Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska by : Heather Marie Wilson
Download or read book Population Ecology of Breeding Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska written by Heather Marie Wilson and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Populations of Pacific common eiders (Somateria mollissima v-nigrum) on the Yuko-Kuskokwim Delta (YKD) in western Alaska declined by 50-90% from 1957 to 1992 and then stabilized at reduced numbers from the early 1990s to the present. We investigated the underlying processes affecting their population dynamics by collection and analysis of demographic data from Pacific common eiders at 3 sites on the YKD (1991-2004) for 29 site-years. We examined variation in components of reproduction, tested hypotheses about the influence of specific ecological factors on life-history variables, and investigated their relative contributions to local population dynamics"--page 1.
Book Synopsis Population Ecology of Breeding Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska by : Heather Marie Wilson
Download or read book Population Ecology of Breeding Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska written by Heather Marie Wilson and published by . This book was released on 2012 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Population Ecology of Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska by : Heather Marie Wilson
Download or read book Population Ecology of Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska written by Heather Marie Wilson and published by . This book was released on 2007 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of ecological factors that influence birth, death, immigration, and emigration provide insight into natural selection and population dynamics. Populations of Pacific common eiders (Somateria mollissima v-nigrum) on the Yukon-Kuskokwim Delta (YKD) in western Alaska declined by 50-90% from 1957 to 1992 and then stabilized at reduced numbers from the early 1990's to the present. This study investigates the primary underlying processes affecting population dynamics of Pacific common eiders, with the goals of understanding factors that may have led to the observed decline and subsequent stabilization, and providing tools from which conservation, management, and recommendations for future research can be drawn.
Book Synopsis Population Dynamics of Greater Scaup Breeding on the Yukon-Kuskokwim Delta, Alaska by : Paul Leroy Flint
Download or read book Population Dynamics of Greater Scaup Breeding on the Yukon-Kuskokwim Delta, Alaska written by Paul Leroy Flint and published by . This book was released on 2006 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Populations of greater scaup (Aythya marila) remained relatively stable during a period when populations of lesser scaup (A. affinis) have declined from historic levels. To assist in describing these differences in population trends, from 1991 through 2000, we studied survival, nesting, ecology, and productivity of greater scaup on the Yukon-Kuskokwim Delta (Y-K Delta), Alaska, to develop a model of population dynamics. We located nests, radio-marked females for renesting studies, estimated duckling survival, and leg-banded females to examine nest site fidelity and annual survival"--Page 1.
Download or read book The Common Eider written by Chris Waltho and published by Bloomsbury Publishing. This book was released on 2015-01-15 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: A monograph of the Common Eider, a large and familiar duck with a long and fascinating cultural history. A common sight around the more northerly shores of the British Isles, the Common Eider is the largest duck in the northern hemisphere. The eider is particularly well adapted to cold-water environments; the insulating properties of eider down are iconic. The species is taxonomically interesting, with a range of well-marked subspecies reflecting the patterns of ice coverage during ancient glaciations, and these ducks have also provided the focus for a number of important behavioural studies, especially on feeding ecology and energy budgets. Eiders have a long association with humans, and have deep cultural significance in many societies. However, modern lifestyles are exposing these ducks to a wide range of new pressures. This monograph provides a comprehensive portrait of the Common Eider; authors Chris Waltho and John Coulson bring together an extensive and diverse international literature, with sections on taxonomy, habitats, breeding biology, population dynamics, diet and foraging, dispersal and migration, and conservation.
Book Synopsis Ecology and Conservation of North American Sea Ducks by : Jean-Pierre L. Savard
Download or read book Ecology and Conservation of North American Sea Ducks written by Jean-Pierre L. Savard and published by CRC Press. This book was released on 2015-04-13 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past decade has seen a huge increase in the interest and attention directed toward sea ducks, the Mergini tribe. This has been inspired, in large part, by the conservation concerns associated with numerical declines in several sea duck species and populations, as well as a growing appreciation for their interesting ecological attributes. Reflec
Book Synopsis Ducks, Geese, and Swans of North America by : Guy A. Baldassarre
Download or read book Ducks, Geese, and Swans of North America written by Guy A. Baldassarre and published by JHU Press. This book was released on 2014 with total page 1183 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 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. Guy Baldassarre has hit the target. His remake of the Kortright/Bellrose classic provides good biological descriptions, wonderful photographs and illustrations, and easy-to-understand information about waterfowl. I would encourage every hunter and enthusiast to have these books as an educational guide to waterfowl and their needs.--H. Dale Hall, CEO, Ducks Unlimited, Inc. When, as an eleven-year-old in 1942, I read F. H. Kortright's first edition of this book, it altered the trajectory of my life. Every subsequent edition, including this latest update by Guy Baldassarre, has improved the landmark reference. I can't imagine that anyone interested in waterfowl or wetlands can live without this indispensable book.--Paul A. Johnsgard, University of Nebraska-Lincoln Creating a brand-new version of such a timeless and previously revised classic is a risky venture indeed, but nobody could be better suited for this monumental task than Guy Baldassarre. He has created a stunning new classic, at once magnificent in its visual appeal and truly comprehensive in its scientific breadth and depth. Hats off to Guy for dedicating himself to this project with such obvious passion, patience, and skill. This book absolutely belongs on the shelf or coffee table of anyone who has ever marveled at waterfowl, whether through their binoculars or from inside the duck blind.--John W. Fitzpatrick, Cornell Laboratory of Ornithology Guy Baldassarre was a professor of wildlife ecology at the State University of New York College of Environmental Science and Forestry in Syracuse until his death in 2012. He is the coauthor of the textbook, Waterfowl Ecology and Management. Johns Hopkins University Press Baltimore www.press.jhu.edu This product consists of two volumes, packaged in a slipcase along with a CD containing references and additional maps. ISBN 13: 978-1-4214-0751-7 ISBN 10: 1-4214-0751-5 [Use barcode for ISBN 13: 978-1-4214-0751-7] Cover design: Cover illustration: Northern Pintail. GaryKramer.net Author photo: HOLD SPACE FOR AUTHOR PHOTO X: \marketing\author photos --John W. Fitzpatrick, Cornell Lab of Ornithology "Midwest Book Review"
Book Synopsis The North American Sea Ducks by : Paul Johnsgard
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.
Book Synopsis Issues in Global Environment—Biology and Geoscience: 2013 Edition by :
Download or read book Issues in Global Environment—Biology and Geoscience: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1086 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Global Environment—Biology and Geoscience: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Wildlife Research. The editors have built Issues in Global Environment—Biology and Geoscience: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Wildlife Research in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Global Environment—Biology and Geoscience: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2010 by : Julian B. Fischer
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2010 written by Julian B. Fischer and published by . This book was released on 2010 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data from ground-based surveys taken to estimate numbers of nests and eggs of geese and eiders in the Yukon-Kuskokwim delta from 1985 to 2010. Of 85 plots, 66 were sampled in 2010 in a ground survey in the Hazen Bay coastal region (from Kigigak Island to Kashunuk River). Statistics cover cackling goose, emperor goose, greater white-fronted goose, black brant, tundra swan, sandhill crane, spectacled eider, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 2009 by : Julian B. Fischer
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 2009 written by Julian B. Fischer and published by . This book was released on 2009 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of 85 plots, 81 were sampled in a ground survey in the Hazen Bay region in the Yukon-Kuskokwim delta coastal zone (from Kigigak Island to Kashunuk River) in order to determine potential production of waterbirds, especially geese and eiders. Statistics cover cackling goose, emperor goose, white-fronted goose, black brant, tundra swan, sandhill crane, spectacled eider, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2014 by :
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2014 written by and published by . This book was released on 2015 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data based on ground-based nest surveys on population status, egg production, nesting effort, phenology, habitat use, and predation for the cackling Canada goose, emperor goose, greater white-fronted goose, and spectacled eider. The survey also provides statistics for the black brant, tundra swan, sandhill crane, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2012 by :
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2012 written by and published by . This book was released on 2013 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data based on ground-based nest surveys on population status, egg production, nesting effort, phenology, habitat use, and predation for the cackling Canada goose, emperor goose, greater white-fronted goose, and spectacled eider. The survey also provides statistics for the tundra swan, sandhill crane, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 2005 by : Julian B. Fischer
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 2005 written by Julian B. Fischer and published by . This book was released on 2005 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some 85 plots were sampled in a ground survey in the Hazen Bay region (from Kigigak Island to Kashunuk River) in order to determine potential production of waterbirds, especially geese and eiders. In this Yukon-Kuskokwim delta coastal zone the increase of spectacled eider was estimated to be 29% higher since 2004. Geese production was good. Statistics include cackling goose, emperor goose, white-fronted goose, black brant, tundra swan, sandhill crane, spectacled eider, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2011 by : Julian B. Fischer
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2011 written by Julian B. Fischer and published by . This book was released on 2011 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data from ground-based surveys taken to estimate numbers of nests and eggs of geese and eiders in the Yukon-Kuskokwim delta from 1985 to 2011. Of 85 plots, 82 were sampled in June 2011 in a ground survey in the Hazen Bay coastal region (from Kigigak Island to Kashunuk River). Complete statistics are given for cackling goose, emperor goose, greater white-fronted goose, black brant, tundra swan, sandhill crane, spectacled eider, common eider, glaucous gull, mew gull, Sabine's gull, arctic tern, red-throated loon, and Pacific loon. Additional statistics (on nest initiation and hatch date) are given for greater scaup/long-tailed duck, pintail/shoveler/mallard/teal, and small shorebirds and statistics for fox and vole signs.
Book Synopsis Arctic Research of the United States by :
Download or read book Arctic Research of the United States written by and published by . This book was released on 2004 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Waterfowl Populations, Production and Habitat Ecology on the Yukon-Kuskokwim Delta, Alaska by : Peter Glenn Mickelson
Download or read book Waterfowl Populations, Production and Habitat Ecology on the Yukon-Kuskokwim Delta, Alaska written by Peter Glenn Mickelson and published by . This book was released on 1971 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
