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Timing Of Pairing In Harlequin Ducks
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Author :Michael S. Rodway Publisher :Library and Archives Canada = Bibliothèque et Archives Canada ISBN 13 : Total Pages :214 pages Book Rating :4.E/5 ( download)
Book Synopsis Timing of Pairing in Harlequin Ducks by : Michael S. Rodway
Download or read book Timing of Pairing in Harlequin Ducks written by Michael S. Rodway and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2003 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 Ducks, Geese, and Swans of North America by : Guy Baldassarre
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.
Book Synopsis Movement Patterns and Population Structure of Harlequin Ducks Wintering in the Strait of Georgia, British Columbia by : Heidi M. Regehr
Download or read book Movement Patterns and Population Structure of Harlequin Ducks Wintering in the Strait of Georgia, British Columbia written by Heidi M. Regehr and published by . This book was released on 2003 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: I investigated winter movement patterns and population structure of Harlequin Ducks (Histrionicus histrioniczrs) in the Strait of Georgia, British Colunlbia, Canada. Because of winter pairing, delayed maturation, and long-term pair bonds, movement patterns at wintering areas, particularly those of young birds that have not yet paired, are important to population structure. I used nasal- and radio-marking to determine movement distances, and multi-stratum models In capture-mark-recapture analysis to estimate movement rates among locations. I provide evidence that Harlequin Duck broods accompany their mothers from breeding streams to coastal wintering areas. Behavioural observations of family-like groups at the coast, and genetic analysis of blood samples from putative family members, suggested that observed groups were true families. Family migration in combination with philopatry, in the absence of dispersal, would lead to juvenile recruitment into the wintering populations of their relatives, and potentially to genetic and demographically isolated populations. Winter movement distances and rates did not differ by sex, likely due to extreme philopatry of paired males, slightly reduced philopatry of unpaired males, and intermediate philopatry of previously paired females. However, they did differ by age, with young birds in their first and second winters dispersing greater distances and at higher rates than older individuals. Isolation by distance and stepping stone gene flow models generated estimates for the among population component of genetic variance of less than 1% for the Strait of Georgia. Thus, due to dispersal of young individuals, which counteracts the isolating effects of philopatry and family migration, groups of Harlequin Ducks are unlikely to be genetically distinct at this scale. However, estimates from the stepping stone model for an increased number of colonies did suggest that, due to their linear coastal distribution, genetic differences could develop at the scale of their entire west coast of North America wintering range. Low movement rates between the northern and southern Strait of Georgia suggested that groups of wintering birds may be demographically distinct at this scale, and dispersal by both sexes indicated that recolonization or rescue of extinct or reduced groups is likely.
Download or read book The Condor written by and published by . This book was released on 2000 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Waterfowl Ecology and Management by : Guy A. Baldassarre
Download or read book Waterfowl Ecology and Management written by Guy A. Baldassarre and published by Krieger Publishing Company. This book was released on 2006 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Baldaserre & Bolen addresses several aspects of waterfowl ecology and management. This second edition includes 16 'infoboxes, ' which are stand-alone inserts in the various chapters. The infoboxes present information on important waterfowl people, places, and issues
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2010 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Caring for Our Natural Community by : Susan Reel
Download or read book Caring for Our Natural Community written by Susan Reel and published by . This book was released on 1989 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marine Birds by : Pacific Seabird Group
Download or read book Marine Birds written by Pacific Seabird Group and published by Canadian Wildlife Service. This book was released on 1984 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers presented in this document are listed under threeparts: Feeding ecology of marine waterfowl, Feeding ecology ofpelagic marine birds, and Commercial fisheries interactions.
Book Synopsis Ducks of Britain and Europe by : M. A. Ogilvie
Download or read book Ducks of Britain and Europe written by M. A. Ogilvie and published by A&C Black. This book was released on 2010-09-30 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The forty-two species or subspecies of ducks which occur in Europe, including eleven vagrants from North America or Asia, are the subject of this book. Its author is an accepted authority on ducks and geese, and has been a member of the research staff of the Wildfowl Trust at Slimbridge since 1960.Most birdwatchers consider ducks to be especially attractive and interesting birds, and many species of ducks are also the legitimate quarry of wildfowlers. Both groups need to identify the species quickly and accurately, and almost half of the book is devoted to identification, offering a far more detailed account than is to be found in any of the field guides. There are detailed descriptions, species by species, of the adult males and females, immature birds, eclipse males, and downy young - voice, too, is dealt with - and full-colour plates of males and females show the flight patterns, so important for correct species identification.The habits of European ducks are treated in chapters on behaviour and ecology, breeding biology, distribution and status, and the ever-fascinating topic of migration and navigation. The distribution chapter has maps showing the summer and winter ranges in Europe, North Africa, the Middle East and Central Russia, for 24 species.'A final chapter considers the present day threats to ducks and their wetland habitats, and the conservation measures being taken to combat the threats.The colour plates and more than 80 line drawings in the text are by Carol Ogilvie, the author's wife.Jacket illustration by Carol Ogilvie
Book Synopsis Tongass National Forest (N.F.), Stikine Area, Shamrock Timber Sales by :
Download or read book Tongass National Forest (N.F.), Stikine Area, Shamrock Timber Sales written by and published by . This book was released on 1996 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin by : United States National Museum
Download or read book Bulletin written by United States National Museum and published by . This book was released on 1925 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Life Histories of North American Wild Fowl by : Arthur Cleveland Bent
Download or read book Life Histories of North American Wild Fowl written by Arthur Cleveland Bent and published by Courier Corporation. This book was released on 1987-01-01 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Copious details on behavior, plumage, nesting and migratory habits, field marks, much more.
Book Synopsis An Interpretation of the Slave-making Instincts in Ants by : William Morton Wheeler
Download or read book An Interpretation of the Slave-making Instincts in Ants written by William Morton Wheeler and published by . This book was released on 1905 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the American Museum of Natural History by : American Museum of Natural History
Download or read book Bulletin of the American Museum of Natural History written by American Museum of Natural History and published by . This book was released on 1905 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises articles on geology, paleontology, mammalogy, ornithology, entomology and anthropology.
Book Synopsis Life Histories of North American Wild Fowl by : Arthur Cleveland Bent
Download or read book Life Histories of North American Wild Fowl written by Arthur Cleveland Bent and published by . This book was released on 1925 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bulletin is a continuation of the work on the life histories of North American birds from Bulletins 107,113, 121, and 126. The same general plan has been followed and the same sources of information have been utilized. This bulletin covers the Order Anseres (Anseriformes) ... the ducks, geese and swans.
