Download or read book Ecological Relationships Between Common Murres Uria Aalge and Thick billed Murres Uria Lomvia at the Gannet Islands Labrador II Breeding Success and Site Characteristics written by T. R. Birkhead and published by . This book was released on 1987 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proportion of Thick-billed Murres (Uria lomvia) that successfully reared a chick that left the colony was significantly lower than that of Common Murres (Uria aalge) in each of the 3 years (1981-3) of study.
Download or read book Ecological Relationships Between Common Murres Uria Aalge and Thick billed Murres Uria Lomvia at the Gannet Islands Labrador I Morphometrics and Timing of Breeding written by T. R. Birkhead and published by . This book was released on 1987 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes several aspects of the breeding biology of Common Murres (Uria aalge) and Thick-billed Murres (Uria lomvia) in 1981-83, at the Gannet Islands, Labrador.
Download or read book Ecological Relationships Between Common Murres Uria Aalge and Thick billed Murres Uria Lomvia at the Gannet Islands Labrador III Feeding Ecology of the Young written by T. R. Birkhead and published by . This book was released on 1987 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simultaneous comparison of the foods of Common Murre, Uria aalge, and Thick-billed Murre, Uria lomvia, chicks at the same location showed that the species composition of fish fed to chicks of these murre species differed significantly.
Download or read book Great Auk Islands a field biologist in the Arctic written by Tim Birkhead and published by A&C Black. This book was released on 2010-10-30 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: The story of the author's research expeditions in the Canadian Arctic, this book is for professional and amateur ornithologists, students in ecology and animal behaviour. The Arctic is one of the world's last great wildernesses: a place of outstanding beauty, history and extraordinary wildlife in which seabirds form an important component of a rich, marine environment. Like many other remote regions, it is under threat from human activities, but to protect it we need to understand it. That understanding can come only through scientific research and the central threat of this book is to examine how such research is actually done. It describes the business of conducting biological studies on seabirds in remote parts of eastern Canada. Several themes are engagingly interwoven: the sheer beauty of the Arctic environment, the intriguing biology of its wildlife, and the discovery and exploitation of enormous seabird colonies, including the destruction of the Great Auk. Tim Birkhead describes in personal detail the different facets of research and brings to life both the difficulties and the excitement of working in the Arctic. What is it like setting up a camp for four months on a remote and uninhabited island not far from the North Pole? How does it feel to commute daily by inflatable boat amidst icebergs to study-areas located on towering cliffs, set between ice-blue glaciers? What do you do when a Polar bear decides that you have invaded its Arctic home? Why are the seabird colonies in the high Arctic so enormous? What do we know about lifestyle of the extinct Great Auk? In 1992 Canada's legendary cod fishery was finally destroyed - what are the consequences of this for other wildlife? These are just a few of the questions dealt with in this book. Our future as a species depends upon science and the understanding it brings of the world we live in. The work of scientists often appears obscure, but in this book, Tim Birkhead has used his experience of seven summers in the Arctic to write an accessible and straightforward account of how research is actually done in the field. The text is enriched by David Quinn's illustrations, and by numerous photographs in both black and white, and colour.
Download or read book Long term Ecological Change in the Northern Gulf of Alaska written by R.B. Spies and published by Elsevier. This book was released on 2006-12-12 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive text is a major synthesis on ecological change in the Gulf of Alaska. It encompasses the structural and annual changes, forces of change, long-ecological changes in the atmosphere and ocean, plankton, fish, birds and mammals, and the effects of the 1989 Exxon Valdez Oil Spill. With 5 major sections, Long-term Ecological Change in the Northern Gulf of Alaska first describes the physical features, the atmosphere and physical oceanography, the annual production cycle, the forage base for higher animals and trophic transfer, and the adaptations for survival in this changing environment for 9 portal species. Then, the major forces of change are introduced: climate, geophysics, fisheries and harvesting, species interactions, disease and contaminants. Next, the long-term records of change in physical factors and biological populations are presented, as well as the potential reasons for the biological changes. Following is the history of the Exxon Valdez oil spill and its long-term effects. And, finally, the emergent properties of the ecosystem are discussed and an attempt is made to weigh the importance of the major forcing factors in terms of their temporal and spatial scales of influence. * Examines important data on long-term change in the ecosystem and the forcing factors that are responsible for it * Provides an account of the 1989 Exxon Valdez oil spill with emphasis on the long-term effects * Describes the effects of climate change, geophysical change, species interactions, harvesting, disease, the 1989 oil spill, and marine contaminants on key populations of marine organisms
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1999 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Birds of Ydre Kitsissut Kitsissut Avalliit Southwest Greenland written by and published by Museum Tusculanum Press. This book was released on with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Food Resource Use and Responses to Changes in Prey Availability of Common and Thick billed Murres Uria Aalgae and U Lomvia Breeding at the Gannet Islands Labrador written by Rachel L. Bryant and published by . This book was released on 1998 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science Review written by Bedford Institute of Oceanography and published by . This book was released on 1987 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological relationships between two sympatric congeneric species common murres and thick billed murres Uria aalge and U lomvia breeding in the Barents Sea written by R.T. BARRETT and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Food Resource Use and Responses to Changes in Prey Availability of Common and Thick billed Murres Uria Aalge and U Lomvia Breeding at the Gannet Islands Labrador written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Atlantic Walrus Odobenus Rosmarus Rosmarus in West Greenland written by and published by . This book was released on 1994 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Condor written by and published by . This book was released on 1994 with total page 1164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlantic Seabirds written by and published by . This book was released on 1999 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Goose Use of the Coastal Habitats of Northeastern James Bay written by Anton Michael Scheuhammer and published by . This book was released on 1995 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polar Research written by and published by . This book was released on 1996 with total page 378 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 1957 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
