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Winter Distributions Of Thick Billed Murres From The Eastern Canadian Arctic And Western Greenland In Relation To Age And Time Of Year
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Author :Garry M. Donaldson Publisher :Canadian Museum of Civilization/Musee Canadien Des Civilisations ISBN 13 : Total Pages :32 pages Book Rating :4.:/5 (319 download)
Book Synopsis Winter Distributions of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year by : Garry M. Donaldson
Download or read book Winter Distributions of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year written by Garry M. Donaldson and published by Canadian Museum of Civilization/Musee Canadien Des Civilisations. This book was released on 1997 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thick-billed Murres (Uria lomvia from colonies in the eastern Canadian Arctic and West Greenland winter in large numbers off the coast of Newfoundland, where they are subjected to heavy hunting pressure. Some of these colonies, especially in Greenland, have declined over the past 50 years, and this has raised concerns over the efects of current harvest levels in Newfoundland. We analyzed the recoveries of birds banded at Canadian and Greenland colonies to determine where and when birds of different ages and from different colonies were killed. We dealt with recoveries for the period prior to recent restrictions (winter of 1993-1994 onwards), which allowed us to compare recoveries from different geographical areas over the whole period when the birds are present off Newfoundland.
Book Synopsis Winter Distributions of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year by :
Download or read book Winter Distributions of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year written by and published by . This book was released on 1997 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Canada. Environment Canada Publisher :Minister of Public Works and Government Services ISBN 13 : Total Pages :616 pages Book Rating :4.:/5 (89 download)
Book Synopsis Winter Distributions of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year by : Canada. Environment Canada
Download or read book Winter Distributions of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year written by Canada. Environment Canada and published by Minister of Public Works and Government Services. This book was released on 1957 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Winter Distribution of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year by : Garry M. Donaldson
Download or read book Winter Distribution of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year written by Garry M. Donaldson and published by . This book was released on 1997 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings RMRS. written by and published by . This book was released on 1998 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Occasional Paper - Canadian Wildlife Service by : Canadian Wildlife Service
Download or read book Occasional Paper - Canadian Wildlife Service written by Canadian Wildlife Service and published by . This book was released on 2001 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2000 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Personal, Societal, and Ecological Values of Wilderness by :
Download or read book Personal, Societal, and Ecological Values of Wilderness written by and published by . This book was released on 2000 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Breeding Distribution and Population Trends of the Great Blue Heron in Quebec, 1977-2001 by : Jean-Luc DesGranges
Download or read book Breeding Distribution and Population Trends of the Great Blue Heron in Quebec, 1977-2001 written by Jean-Luc DesGranges and published by . This book was released on 2006 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regular surveys of Great Blue Heron (Ardea herodias) colonies in Quebec, conducted between 1977 and 2001, resulted in the discovery of 705 colonies, mostly in the western part of the province. While single breeding pairs were occasionally found (9% of Quebec "heronries"), the colonies were generally composed of fewer than 16 breeding pairs, with sometimes over 50 (18 known colonies), as was the case on several islands in the St. Lawrence River. Close to one-third (1919 of the 6481 active nests) of the Quebec Great Blue Heron population was associated with heronries in the St. Lawrence system. Half of the St. Lawrence heronries that were active during two adjacent survey periods (1975-1983 and 1984-1990, or 1984-1990 and 1991-2001) increased in size between periods, while one-third of the colonies decreased in size. One-sixth of the colonies remained the same size during the study period. Great Blue Herons periodically abandon their colonies and settle elsewhere. Our data show that 50% of known Quebec colonies (n = 377 colonies visited more than once) were abandoned after being discovered as active colonies, and, on average, all nests in colonies that are abandoned disappear 7 years after discovery of the colony. On the basis of thorough inventories conducted on the St. Lawrence, we found that all nest platforms in 14 of the 70 colony sites had disappeared in less than 25 years. Since 1977, when regular surveys began, 50-90% of breeding attempts have been successful, yielding an average of over 2.2 chicks per pair. This productivity rate suggests that the Quebec population of Great Blue Herons may be increasing and may explain the recent expansion in its range. Following our 25 years of investigation on the Great Blue Heron in the province, we estimate the current late-summer Great Blue Heron population of Quebec at some 27 000 individuals (6500 pairs producing 2.2 young per pair per year).--Publisher's description.
Book Synopsis Browsing Science Research at the Federal Level in Canada by : Brian B. Wilks
Download or read book Browsing Science Research at the Federal Level in Canada written by Brian B. Wilks and published by University of Toronto Press. This book was released on 2004-01-01 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wilks provides a historical background, list of publications, and description of activities for most of the major science initiatives undertaken at the federal level. He surveys a wide range of government documents and monographic and serial science collections used by both faculty and students.
Book Synopsis Studies of High-latitude Seabirds by : A. J. Gaston
Download or read book Studies of High-latitude Seabirds written by A. J. Gaston and published by . This book was released on 1957 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimates of Shorebird Populations in North America by : R. I. G. Morrison
Download or read book Estimates of Shorebird Populations in North America written by R. I. G. Morrison and published by . This book was released on 2001 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents estimates of population sizes of 53 species of Nearctic shorebirds occurring regularly in North America, plus four species that breed occasionally. The estimates are given for various regions of the continent and include references to the literature as well as discussion of relevant matters such as population trends. Information on estimation methods & their accuracy is also included.
Book Synopsis Canadian Atlas of Bird Banding by : Anthony J. Gaston
Download or read book Canadian Atlas of Bird Banding written by Anthony J. Gaston and published by . This book was released on 2008 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes, for the first time, bird-banding results for Canada, including data on birds banded in Canada and those banded elsewhere but encountered in Canada. Although limited in geographic scope, the data depict movement patterns that are typical for North America as a whole. The current volume deals with seabirds (albatrosses, petrels, gannets, cormorants, pelicans, jaegers, gulls, terns, and auks).
Download or read book Marine Ornithology written by and published by . This book was released on 2005 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution, Survival, and Numbers of Lesser Snow Geese of the Western Canadian Arctic and Wrangel Island, Russia by : R. H. Kerbes
Download or read book Distribution, Survival, and Numbers of Lesser Snow Geese of the Western Canadian Arctic and Wrangel Island, Russia written by R. H. Kerbes and published by . This book was released on 1999 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Razorbill Alca torda is one of the rarest breeding auks in North America. A number of surveys have been conducted at breeding colonies in recent years to estimate population size and trends. Summarizing the available data, we estimate that approximately 38 000 pairs of Razorbills currently breed in eastern North America. The largest concentrations of Razorbills breed on the Quebec North Shore and in coastal southern Labrador; smaller numbers breed in the Quebec portion of the gulf and estuary of the St. Lawrence River, Maine, New Brunswick, Nova Scotia, Newfoundland, and St. Pierre and Miquelon. "--Abstract.
Book Synopsis Assessment of Bird Populations in the Rasmussen Lowlands, Nunavut by : Victoria Helen Johnston
Download or read book Assessment of Bird Populations in the Rasmussen Lowlands, Nunavut written by Victoria Helen Johnston and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Nous avons entrepris une étude des populations d'oiseaux nichant dans les basses terres de Rasmussen (Nunavut) afin d'évaluer la pertinence de désigner cette région comme Réserve nationale de faune ..."--Page 4.
Book Synopsis Science Review by : Bedford Institute of Oceanography
Download or read book Science Review written by Bedford Institute of Oceanography and published by . This book was released on 1994 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the federal marine science and fisheries research programs that are carried out at the Bedford Institute of Oceanography, the Halifax Fisheries Research Laboratory, and the St. Andrews Biological Station.
