Download or read book Aerial Surveys of Migratory Birds on the Fraser River Delta 1989 90 written by Richard W. McKelvey and published by . This book was released on 1990 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The results of 16 aerial surveys over the estuary of the Fraser River between mid October 1989 and mid January 1990 are presented. The numbers seen were compared to those summarized for 1966-74, 1982-83 and 1983-84 by McKelvey et al (1985)"--Abstract.
Download or read book Aerial Surveys of Migratory Birds on the Fraser River Delta 1989 90 written by Canadian Wildlife Service. Pacific and Yukon Region and published by [Delta, B.C.] : Canadian Wildlife Service. This book was released on 1990 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Surveys of Migratory Birds on the Fraser River Delta 1985 86 written by Canadian Wildlife Service. Pacific and Yukon Region and published by [Delta, B.C.] : Canadian Wildlife Service. This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report 1989 90 written by New Brunswick. Department of Transportation and published by . This book was released on 1991 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt: General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.
Download or read book Microlog Canadian Research Index written by and published by . This book was released on 1991 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report Series written by and published by . This book was released on 1986 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Abundance and Distribution of Estuarine Birds in the Strait of Georgia British Columbia written by Robert William Butler and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The present publication follows an earlier report by Vermeer and Butler (1989) that described the physical and biological environment, prey organisms, and ecology of waterbirds in the Strait of Georgia. Here, we compare the year-round abundance, distribution, and energy consumption of birds in five large estuaries and one small urban estuary in the Strait of Georgia. We use the traditional definition of an estuary: the lower deltaic portion of a river and the nearby shallow waters in the freshwater plume"--Introd.
Download or read book Declines in Canadian Amphibian Populations written by Christine Annette Bishop and published by . This book was released on 1992 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1991, a workshop was held to examine the data related to declines in Canadian amphibian populations and associated causes and, in particular, to develop a protocol to address the issue. Participants were invited to present reports on the current status of knowledge on amphibians in Canada, particularly species that appear to be threatened. Summaries of this information are presented in this report, along with the factors that may be contributing to fluctuations in amphibian populations. Methodologies and tribulations involved in accurately assessing amphibian population size and recruitment are given. A framework for environmental monitoring was presented and the data needed, both intensive and extensive, was discussed.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occasional Paper Canadian Wildlife Service written by Canadian Wildlife Service and published by . This book was released on 1999 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The Condor written by and published by . This book was released on 1996 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fraser River Delta British Columbia written by Geological Survey of Canada and published by . This book was released on 2004 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin Geological Survey of Canada written by Geological Survey of Canada and published by . This book was released on 2001 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shorebird Migration and Staging at a Large Prairie Lake and Wetland Complex written by Stuart A. Alexander and published by Canadian Museum of Civilization/Musee Canadien Des Civilisations. This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We examined the use of an extensive prairie lake and wetland complex at the Quill Lakes, Saskatchewan, by migrant shorebirds. The most common species observed there during northbound spring migration were (in order of abundance) Red-necked Phalarope Phalaropus lobatus, Semipalmated Sandpiper Calidris pusilla, Stilt Sandpiper C. himantopus, White-rumped Sandpiper C. fuscicollis, Least Sandpiper C. minutilla, and Sanderling C. alba"--Abstract.
