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Author: John Francis Roos
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 488
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Author: John Francis Roos
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 488
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Book Description
Author: John M. Findlay
Publisher: University of Washington Press
ISBN: 0295801247
Category : History
Languages : en
Pages : 328
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Book Description
The Canadian West and the American Northwest offer a valuable setting for considering issues of borders and borderlands. The regions contain certain similarities, and during the first half of the nineteenth century they were even grouped together as a distinct political and economic unit, called the "Oregon Country" by Americans and the "Columbia Department" of the Hudson's Bay Company by the British. The essays in this volume -- which grew out of a conference commemorating the Oregon Treaty of 1846 -- view the boundary between Canada and the United States as a dividing line and also as a regional backbone, with people on each side of the border having key experiences and attitudes in common. In their eloquence and scope, they illustrate how historical study of Canadian-American relations in the West calls into question the parameters of the nation-state. The border has not had a single constant meaning; rather, its significance has changed over time and varied from group to group. The essays in Part One concern the movement of peoples and capital across a relatively permeable boundary during the nineteenth century. Many people in this era--especially Natives, miners, immigrants, and capitalists--did not regard the international boundary as particularly important. Part Two considers how the United States and Canada took pains to strengthen and enforce the international boundary during the twentieth century. In this era, the nation-state became more assertive about defining and defending the borderline. Part Three offers considerations of the distinctions, both real and imagined, that emerged during the nineteenth and twentieth centuries between Canada and the United States. Its essays examine different schools of history, divergent ideas toward wilderness, and the influence of anti-Americanism on Canadians' view of national development in North America.
Author: Dean Apostol
Publisher: Island Press
ISBN: 1610911032
Category : Science
Languages : en
Pages : 505
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Book Description
The Pacific Northwest is a global ecological "hotspot" because of its relatively healthy native ecosystems, a high degree of biodiversity, and the number and scope of restoration initiatives that have been undertaken there. Restoring the Pacific Northwest gathers and presents the best examples of state-of-the-art restoration techniques and projects. It is an encyclopedic overview that will be an invaluable reference not just for restorationists and students working in the Pacific Northwest, but for practitioners across North America and around the world.
Author: United States. Congress. Senate. Committee on Energy and Natural Resources
Publisher:
ISBN:
Category : Law
Languages : en
Pages : 176
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Book Description
Author: United States. National Park Service
Publisher:
ISBN:
Category : Anadromous fishes
Languages : en
Pages : 530
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Book Description
Author: Rebecca McCaffery
Publisher: Frontiers Media SA
ISBN: 2832553605
Category : Science
Languages : en
Pages : 405
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Book Description
Rivers are vital ecosystems that support aquatic and terrestrial biodiversity and several ecosystem services, including food, water, culture, and recreation. After centuries of building dams on rivers across the world, dam removal projects are now on the rise due to obsolescence, reservoir sedimentation, insufficient return on investment, or river restoration and conservation priorities. Most dam removal projects have focused on smaller structures (< 10 m in structural height), but larger structures have also started to be removed in increasing numbers as practitioners, river managers, conservationists, and the public have gained more experience with the practice. Recent estimates suggest that only a small fraction of dam removals have been scientifically studied, and include mostly small dams and short time scales. Documenting the long-term ecological outcomes of large dam removal (i.e. >10 m tall) represents a new frontier in dam removal research: projects are more recent and provide an opportunity to understand the complex ecological changes that occur with these transformative restoration projects. Here, we aim to collate a diverse array of papers on long-term dam removal research projects involving larger dams (>10 m) to synthesize the issues, outcomes, tools, and experimental designs used to study large dam removal projects from physical, biological, and ecological perspectives. With this collection, we aim to showcase diverse global projects on ecosystem responses to large dam removal; collect perspectives from different disciplines, fields, and geographies; and synthesize the current state of knowledge in this area. We expect that this Research Topic will be informative to ongoing, long-term ecological restoration and monitoring projects related to dam removal as well as to upcoming large dam removal projects. We welcome contributions from all disciplines addressing the physical, ecological, and ecosystem responses to large-scale dam removal. Contributions could include original research in a specific discipline or area, case studies, or synthesis papers that address one or more of these topics in a transdisciplinary approach. Contributors could address any of the following major topics as related to outcomes of large dam removal, alone or in combination: Freshwater, estuarine, and marine aquatic biota; River and reservoir geomorphology; Terrestrial and riparian vegetation; Wildlife; Sedimentation; and Modelling. We would like contributors to highlight key results in their area of study, cross-disciplinary insights, and lessons learned that could inform ongoing monitoring and research efforts in current projects as well as upcoming large dam removals.
Author:
Publisher:
ISBN:
Category : Dams
Languages : en
Pages : 708
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Book Description
Author: United States. National Marine Fisheries Service
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 544
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Book Description
Author: Jim Lichatowich
Publisher:
ISBN:
Category : History
Languages : en
Pages : 346
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Book Description
"Fundamentally, the salmon's decline has been the consequence of a vision based on flawed assumptions and unchallenged myths.... We assumed we could control the biological productivity of salmon and 'improve' upon natural processes that we didn't even try to understand. We assumed we could have salmon without rivers." --from the introduction From a mountain top where an eagle carries a salmon carcass to feed its young to the distant oceanic waters of the California current and the Alaskan Gyre, salmon have penetrated the Northwest to an extent unmatched by any other animal. Since the turn of the twentieth century, the natural productivity of salmon in Oregon, Washington, California, and Idaho has declined by eighty percent. The decline of Pacific salmon to the brink of extinction is a clear sign of serious problems in the region. In Salmon Without Rivers, fisheries biologist Jim Lichatowich offers an eye-opening look at the roots and evolution of the salmon crisis in the Pacific Northwest. He describes the multitude of factors over the past century and a half that have led to the salmon's decline, and examines in depth the abject failure of restoration efforts that have focused almost exclusively on hatcheries to return salmon stocks to healthy levels without addressing the underlying causes of the decline. The book: describes the evolutionary history of the salmon along with the geologic history of the Pacific Northwest over the past 40 million years considers the indigenous cultures of the region, and the emergence of salmon-based economies that survived for thousands of years examines the rapid transformation of the region following the arrival of Europeans presents the history of efforts to protect and restore the salmon offers a critical assessment of why restoration efforts have failed Throughout, Lichatowich argues that the dominant worldview of our society -- a worldview that denies connections between humans and the natural world -- has created the conflict and controversy that characterize the recent history of salmon; unless that worldview is challenged and changed, there is little hope for recovery. Salmon Without Rivers exposes the myths that have guided recent human-salmon interactions. It clearly explains the difficult choices facing the citizens of the region, and provides unique insight into one of the most tragic chapters in our nation's environmental history.
Author: United States. Congress. House
Publisher:
ISBN:
Category :
Languages : en
Pages : 2160
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Book Description
