The Peace-Athabasca Delta
The Peace-Athabasca Delta

Author: Kevin P. Timoney

Publisher: University of Alberta

Published: 2013-09-15

Total Pages: 610

ISBN-13: 0888648022

DOWNLOAD EBOOK

"In the delta, water is boss, change is the only constant, and creation and destruction exist side by side." The Peace-Athabasca Delta in northern Alberta is a globally significant wetland that lies within one of the largest unfragmented landscapes in North America. Arguably the world's largest boreal inland delta, it is renowned for its biological productivity and is a central feature of a UNESCO World Heritage Site. Yet the delta and its indigenous cultures lie downstream of Alberta's bitumen sands, whose exploitation comprises one of the largest industrial projects in the world. Kevin Timoney provides an authoritative synthesis of the science and history of the delta, describing its ecology, unraveling its millennia-long history, and addressing its uncertain future. Scientists, students, leaders in the energy sector, government officials and policy makers, and conscientious citizens everywhere should read this lively work.

Hydraulic Modelling of the Peace-Athabasca Delta Under Modified and Natural Flow Conditions
Hydraulic Modelling of the Peace-Athabasca Delta Under Modified and Natural Flow Conditions

Author: Bill Aitken

Publisher: The Study

Published: 1994

Total Pages: 230

ISBN-13:

DOWNLOAD EBOOK

Construction of the Bennett Dam in British Columbia altered natural fluctuations of downstream flows in the Peace River in Alberta, with major implications for the ecosystem of the Peace-Athabasca Delta. In later years, downstream weirs were constructed to restore the water level regime in the Delta. This report presents the results of a modelling exercise undertaken in an attempt to assess the effect of the weirs and the dam on the Delta water levels during 1985-90, at which time Lake Athabasca water levels were low and it was not clear whether the weirs were functioning properly or if the low water levels were caused by low flows coming from the upper Peace and Athabasca river basins. The methodology uses a one-dimensional hydrodynamic model, suitably modified and calibrated. The appendices include numerous plots of water levels indicating the effects of the weirs and dam on natural conditions.

The Industrial Transformation of Subarctic Canada
The Industrial Transformation of Subarctic Canada

Author: Liza Piper

Publisher: UBC Press

Published: 2010-01-01

Total Pages: 425

ISBN-13: 0774858621

DOWNLOAD EBOOK

Between 1821 and 1960, industrial economies took root in the North, transgressing political geographies and superseding the historically dominant fur trade. Imported southern scientists and sojourning labourers worked the Northwest, and its industrial history bears these newcomers' imprint. This book reveals the history of human impact upon the North. It provides a baseline, grounded in historical and scientific evidence, for measuring subarctic environmental change. Liza Piper examines the sustainability of industrial economies, the value of resource exploitation in volatile ecosystems, and the human consequences of northern environmental change. She also addresses northern communities' historical resistance to external resource development and their fight for survival in the face of intensifying environmental and economic pressures.

The Ecology of River Systems
The Ecology of River Systems

Author: Bryan R. Davies

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 788

ISBN-13: 9401732906

DOWNLOAD EBOOK

Our understanding of the ecology of running waters has come a long way during the past few years. From being a largely descriptive subject, with a few under tones concerned with such things as fisheries, pollution or control of blackflies, it has evolved into a discipline with hypotheses, such as the River Continuum Concept (Vannote et a/. 1980), and even a book suggesting that it offers opportunity for the testing of ecological theory (Barnes & Minshall 1983). However, perusal of the literature reveals that, although some of the very early studies were concerned with large rivers (references in Hynes 1970), the great mass of the work that has been done on running water has been on streams and small rivers, and information on larger rivers is either on such limited topics as fisheries or plankton, scattered among the journals, or not available to the general limnologist. The only exceptions are a few books in this series of publications, such as those on the Nile (Rz6ska 1976), the Volga (Morduckai Boltovskoi 1979) and the Amazon {Sioli 1984), and the recent compendium by Whitton (1984) on European rivers, among which there are a few that rate as large.

Alberta’s Lower Athabasca Basin
Alberta’s Lower Athabasca Basin

Author: Brian M. Ronaghan

Publisher: Athabasca University Press

Published: 2017-05-24

Total Pages: 565

ISBN-13: 1926836901

DOWNLOAD EBOOK

Over the past two decades, the oil sands region of northeastern Alberta has been the site of unprecedented levels of development. Alberta's Lower Athabasca Basin tells a fascinating story of how a catastrophic ice age flood left behind a unique landscape in the Lower Athabasca Basin, one that made deposits of bitumen available for surface mining. Less well known is the discovery that this flood also produced an environment that supported perhaps the most intensive use of boreal forest resources by prehistoric Native people yet recognized in Canada. Studies undertaken to meet the conservation requirements of the Alberta Historical Resources Act have yielded a rich and varied record of prehistoric habitation and activity in the oil sands area. Evidence from between 9,500 and 5,000 years ago—the result of several major excavations—has confirmed extensive human use of the region’s resources, while important contextual information provided by key geological and palaeoenvironmental studies has deepened our understanding of how the region’s early inhabitants interacted with the landscape. Touching on various elements of this rich environmental and archaeological record, the contributors to this volume use the evidence gained through research and compliance studies to offer new insights into human and natural history. They also examine the challenges of managing this irreplaceable heritage resource in the face of ongoing development. Contributors: Alwynne Beaudoin, Angela Younie, Brian O.K. Reeves, Duane Froese, Elizabeth Roberston, Eugene Gryba, Gloria Fedirchuk, Grant Clarke, John W. Ives, Janet Blakey, Jennifer Tischer, Jim Burns, Laura Roskowski, Luc Bouchet, Murray Lobb, Nancy Saxberg, Raymond LeBlanc, Robert R. Young, Robin Woywitka, Thomas V. Lowell, and Timothy Fisher

A Social Geography of Canada
A Social Geography of Canada

Author: Guy M. Robinson

Publisher: Dundurn

Published: 2013-12-30

Total Pages: 508

ISBN-13: 1459727711

DOWNLOAD EBOOK

This collection of essays focus on subjects which formed the basis of his life's work -- the changing character of Canadian landscape and society, and the urbanization of that society, including aspects of its historical evolution, its present spacial forms and current social issues.

A Passion for Wildlife
A Passion for Wildlife

Author: J. Alexander Burnett

Publisher: UBC Press

Published: 2011-11-01

Total Pages: 345

ISBN-13: 0774842520

DOWNLOAD EBOOK

A Passion for Wildlife chronicles the history of the Canadian Wildlife Service and the evolution of Canadian wildlife policy over its first half century. It presents the exploits and accomplishments of a group of men and women whose dedication to the ideals of science, conservation, and a shared vision of Canada as a country that treasures its natural heritage has earned them the respect of their profession around the world.