Download or read book Birds of the Yukon Territory written by Pamela H. Sinclair and published by UBC Press. This book was released on 2011-11-01 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Yukon is a land of remarkable wilderness, diverse ecosystems, and profound beauty. It is also home to a unique assemblage of birds. As of 2002, 288 bird species have been documented in the Yukon, with 223 occurring regularly. They occupy an amazing range of habitats, from the most barren mountain peaks to lush valley bottom forests, and are an integral part of the cultural heritage of Yukon First Nations people. The vast areas of natural habitat with limited road access can make the study of birds challenging, but are key in defining the nature of birding in the Yukon. Birds of the Yukon Territory is the result of a decade-long project initiated to gather and share what is known about the Yukon's birdlife. Lavishly illustrated with 600 colour photographs and 223 hand-drawn bird illustrations, the book presents a wealth of information on bird distribution, migration and breeding chronology, nesting behaviour, and habitat use, and on conservation concerns. Two hundred and eighty-eight species of birds are documented, including 223 regular species, and 65 casual and accidental species. In compiling this meticulously researched volume, the authors consulted over 166,000 records in a database created by the Canadian Wildlife Service, with information dating back to 1861. S ections on birds in Aboriginal culture and history, and bird names in the Yukon First Nations and Inuvialuit languages, enhance the book, as do the numerous easily interpreted charts and graphs. Destined to become a basic reference work on the avifauna of the North, Birds of the Yukon Territory is a must-have for bird enthusiasts and anyone interested in the natural history of the Yukon and the North.
Download or read book Parks Canada Guiding Principles and Operational Policies written by Parks Canada and published by . This book was released on 1994 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a comprehensive statement of broad principles that give direction both to present programs and future initiatives of Parks Canada. It provides a framework for the delivery of heritage programs and for responsible management decisions that reflect the national interest while being sensitive to local considerations. It explains how the federal government, within the context of Parliamentary approvals, carries out its national programs of natural and cultural heritage recognition and protection as assigned to the Minister responsible for Parks Canada.
Download or read book Ecosystem Dynamics of the Boreal Forest written by Charles J. Krebs and published by Oxford University Press on Demand. This book was released on 2001 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: The boreal forest is one of the world's great ecosystems, stretching across North America and Eurasia in an unbroken band and containing about 25% of the world's closed canopy forests. The Kluane Boreal Forest Ecosystem Project was a 10-year study by nine of Canada's leading ecologists to unravel the impact of the snowshoe hare cycle on the plants and the other vertebrate species in the boreal forest. In much of the boreal forest, the snowshoe hare acts as a keystone herbivore, fluctuating in 9-10 year cycles, and dragging along secondary cycles in predators such as lynx and great-horned owls. By manipulating the ecosystem on a large scale from the bottom via fertilizer additions and from the top by predator exclosures, they have traced the plant-herbivore relationships and the predator-prey relationships in this ecosystem to try to answer the question of what drives small mammal population cycles. This study is unique in being large scale and experimental on a relatively simple ecosystem, with the overall goal of defining what determines community structure in the boreal forest. Ecosystem Dynamics of the Boreal Forest: The Kluane Project summarizes these findings, weaving new discoveries of the role of herbivores-turned-predators, compensatory plant growth, and predators-eating-predators with an ecological story rich in details and clear in its findings of a community where predation plays a key role in determining the fate of individuals and populations. The study of the Kluane boreal forest raises key questions about the scale of conservation required for boreal forest communities and the many mammals and birds that live there.
Download or read book Effects of Climate Variation on the Breeding Ecology of Arctic Shorebirds written by Hans Meltofte and published by Museum Tusculanum Press. This book was released on 2007 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: About 50 species of shorebirds breed in the Arctic, where they constitute the most characteristic component of the tundra avifauna. Here, we review the impact of weather and climate on the breeding cycle of shorebirds based on extensive studies conducted across the Arctic. Conditions for breeding shorebirds are highly variable among species, sites and regions, both within and between continents. Weather effects on breeding are most moderate in the Low Arctic of northern Europe and most extreme in the Siberian High Arctic. The decision of whether or not to breed upon arrival on the breeding grounds, the timing of egg-laying and the chick-growth period are most affected by annual variation in weather. In large parts of the Arctic, clutch initiation dates are highly correlated with snowmelt dates and in regions and years where extensive snowmelt occurs before or soon after the arrival of shorebirds, the decision to breed and on the breeding ecology of clutch initiation dates appear to be a function of food availability for laying females. Once incubation is initiated, adult shorebirds appear fairly resilient to variations in temperature with nest abandonment primarily occurring in case of severe weather with new snow covering the ground. Feeding conditions for chicks, a factor highly influenced by weather, affects juvenile production in most regions. Predation has a very strong impact on breeding productivity throughout the Arctic and subarctic, with lemming Dicrostonyx spp. and Lemmus spp. fluctuations strongly influencing predation rates, particularly in the Siberian Arctic. The fate of Arctic shorebirds under projected future climate scenarios is uncertain, but High Arctic species and populations appear particularly at risk. Climatic amelioration may benefit Arctic shorebirds in the short term by increasing both survival and productivity, whereas in the long term habitat changes both on the breeding grounds and on the temperate and tropical non-breeding areas may put them under considerable pressure and may bring some of them near to extinction. Their relatively low genetic diversity, which is thought to be a consequence of survival through past climatically-driven population bottlenecks, may also put them more at risk to anthropogenic-induced climate variation than other avian taxa.
Download or read book Arctic Flora and Fauna written by Henry P. Huntington and published by . This book was released on 2001 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is "to summarize ... the information required to assess the state of the Arctic's natural environment today ... ; to provide a useful reference to a wide audience of policy makers, Arctic residents, researchers, and others active in the conservation of Arctic flora and fauna; to point the way to improving our collective understanding and facilitating the international cooperative action required to conserve the Arctic's natural environment."--Page 11.
Download or read book Drafting a Conservation Blueprint written by Craig Groves and published by . This book was released on 2003-05-16 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drafting a Conservation Blueprint lays out for the first time in book form a step-by-step planning process for conserving the biological diversity of entire regions. In an engaging and accessible style, the author explains how to develop a regional conservation plan and offers experience-based guidance that brings together relevant information from the fields of ecology, conservation biology, planning, and policy. Individual chapters outline and discuss the main steps of the planning process, including: • an overview of the planning framework • selecting conservation targets and setting goals • assessing existing conservation areas and filling information gaps • assessing population viability and ecological integrity • selecting and designing a portfolio of conservation areas • assessing threats and setting priorities A concluding section offers advice on turning conservation plans into action, along with specific examples from around the world. The book brings together a wide range of information about conservation planning that is grounded in both a strong scientific foundation and in the realities of implementation.
Download or read book The Wolves of Isle Royale written by Rolf Olin Peterson and published by University of Michigan Press. This book was released on 2007 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new edition of a classic: the compelling firsthand account of an ancient predator-prey relationship---the Isle Royale wolf and moose dynamic
Download or read book Atlas of the Breeding Birds of Ontario 2001 2005 written by Michael Derrick Cadman and published by Bird Studies Canada. This book was released on 2007 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most authoritative and up-to-date resource on the birds of Ontario.
Download or read book Arctic Bulletin written by and published by . This book was released on 1973 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: One issue each year devoted to the annual report.
Download or read book Canadian Arctic Contaminants Assessment Report written by Northern Contaminants Program (Canada) and published by Northern Contaminants Program. This book was released on 2003 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Freshwater Fishes of British Columbia written by J. D. McPhail and published by University of Alberta. This book was released on 2007-09-28 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: The threat of deteriorating habitats and a loss of biodiversity make this reference work on the freshwater fishes of British Columbia more necessary than ever before. Eighty-one comprehensive species accounts aid accurate identification and consist of an illustration, the scientific and common names of the fish, its distinguishing characteristics, taxonomic comments, geographic distribution, a life-history summary, a habitat-use summary, and conservation comments. The book is a critical resource for biologists, naturalists, management and conservation officers, anglers, and members of the public who are concerned about our natural heritage. Foreword by Joseph S. Nelson.
Download or read book Habitat Requirements of Anadromous Salmonids written by D. W. Reiser and published by . This book was released on 1979 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AMAP Assessment Report written by Arctic Monitoring and Assessment Programme and published by Oslo : Arctic Monitoring and Assessment Programme. This book was released on 1998-01-01 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Code of Practice for Metal Mines written by Canada. Environment Canada and published by . This book was released on 2009 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes operational activities and associated environmental concerns of this industrial sector. The document applies to the complete life cycle of mining, from exploration to mine closure, and environmental management practices are recommended to mitigate the identified environmental concerns. The recommended practices in the Code include the development and implementation of environmental management tools, the management of wastewater and mining wastes, and the prevention and control of environmental releases to air, water and land. The Code of Practice will be adopted by Environment Canada and others as a guidance document that recommends environmental protection practices for the mine life cycle. The Code applies specifically to metal mines but will provide useful guidance for all sectors of the mining industry.
Download or read book Noise Assessment and Control written by K. A. Mulholland and published by . This book was released on 1981 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Road Engineering Guidebook written by British Columbia. Ministry of Forests and published by . This book was released on 2002 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidebook provides forest road practitioners with advice on road design and field practices to assist them to achieve the statutory and regulatory requirements in the Forest Practices Code of British Columbia Act, the Forest Road Regulation and the Operational Planning Regulation.
Download or read book Landbird Monitoring Protocol for National Parks in the North Coast and Cascades Network written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
