Importance of Canada's Boreal Forest to Landbirds PDF Download

Author: Peter J. Blancher
Publisher: Canadian Boreal Initiative
ISBN:
Category : Birds
Languages : en
Pages : 94

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Canadian Boreal Initiative • Boreal Songbird Initiative Page 3 IMPORTANCE OF CANADA'S BOREAL FOREST TO LANDBIRDS Although the boreal is known to be of considerable significance to landbirds, until now there has been no systematic survey of boreal birds across the whole of the region, due to its size and remote location. [...] Together these illustrate the significance of Canada's portion of the boreal forest to landbirds, not just within the boreal forest, but also across North America, the Western Hemisphere and globally. [...] All of these species are migratory, emphasizing the seasonal nature of bird abundance in the boreal forest, and underscoring the importance of non-boreal habitats during non-breeding periods of the year. [...] Barn Swallows were the most numerous boreal migrants in fall, comprising 8% of boreal birds, while Yellow-rumped Warblers dominated the spring count at 25% of the total estimated to breed in the boreal forest (Table 12). [...] Figure 7: Proportional Distribution of Boreal birds on Christmas Bird Counts in the U. S. Canadian Boreal Initiative • Boreal Songbird Initiative Page 23 IMPORTANCE OF CANADA'S BOREAL FOREST TO LANDBIRDS Winter Birds at U. S. Feeders: Project FeederWatch Birds from Canada's boreal forest constitute about 17% of landbirds counted at feeders in the contiguous United States.

Author: Jeffrey V. Wells
Publisher: Univ of California Press
ISBN: 0520950585
Category : Science
Languages : en
Pages : 161

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Reaching from interior Alaska across Canada to Labrador and Newfoundland, North America’s boreal forest is the largest wilderness area left on the planet. It is critical habitat for billions of birds; more than 300 species regularly breed there. After the breeding season, many boreal birds migrate to seasonal habitats across the United States, Mexico, the Caribbean, and Central and South America. This volume brings together new research on boreal bird biology and conservation. It highlights the importance of the region to the global avifauna and to the connectivity between the boreal forest and ecoregions throughout the Americas. The contributions showcase a unique set of perspectives on the migration, wintering ecology, and conservation of bird communities that are tied to the boreal forest in ways that may not have been previously considered.

Author: Canadian Boreal Initiative
Publisher:
ISBN:
Category : Forest birds
Languages : en
Pages :

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Author: Peter J. Blancher
Publisher:
ISBN:
Category : Forest birds
Languages : en
Pages : 12

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These ecosystems support some demonstrates that the Boreal Forest Region is vital to the of the greatest abundance of wildlife on the continent, abundance of bird life in the U. S. and Canada, and also including massive caribou herds, intact predator-prey contributes in a significant way to the abundance of birds in systems with healthy populations of top predators like Mexico, the Caribbean, and [...] In fact, the Boreal Forest Region represents 26% of the land area of the The study's findings demonstrate that the Boreal Forest U. S. and Canada - yet this report shows that it supports Region is critical to the well-being of many species of nearly 50% of North America's bird species. [...] Thirty-five of Approximately 30% of all shorebirds (7 million) and 30% of 44 waterfowl species (80%) in the U. S. or Canada breed all landbirds (1-3 billion) that breed in the U. S. and Canada in the Boreal Forest Region. [...] For waterfowl in particular, a more accurate estimate of the proportion of continental 1) The first is Digital Distribution Maps of the Birds populations that occur in the Boreal Forest Region should of the Western Hemisphere (Ridgely et al. [...] Data from the 1990s decade were analyzed to provide an alternative measure of the proportion of breeding birds of each species in combinations of jurisdiction and BCR within the United States, and within Canada south of the arctic.

Author: Bridget Stutchbury
Publisher: Bloomsbury Publishing USA
ISBN: 0802718809
Category : Nature
Languages : en
Pages : 276

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Wood thrush, Kentucky warbler, the Eastern kingbird-migratory songbirds are disappearing at a frightening rate. By some estimates, we may already have lost almost half of the songbirds that filled the skies only forty years ago. Renowned biologist Bridget Stutchbury convincingly argues that songbirds truly are the "canaries in the coal mine"-except the coal mine looks a lot like Earth and we are the hapless excavators. Following the birds on their six-thousand-mile migratory journey, Stutchbury leads us on an ecological field trip to explore firsthand the major threats to songbirds: pesticides, still a major concern decades after Rachel Carson first raised the alarm; the destruction of vital habitat, from the boreal forests of Canada to the diminishing continuous forests of the United States to the grasslands of Argentina; coffee plantations, which push birds out of their forest refuges so we can have our morning fix; the bright lights and structures in our cities, which prove a minefield for migrating birds; and global warming. We could well wake up in the near future and hear no songbirds singing. But we won't just be missing their cheery calls, we'll be missing a vital part of our ecosystem. Without songbirds, our forests would face uncontrolled insect infestations, and our trees, flowers, and gardens would lose a crucial element in their reproductive cycle. As Stutchbury shows, saving songbirds means protecting our ecosystem and ultimately ourselves.

Author: Candace Savage
Publisher: Greystone Books
ISBN: 1926706463
Category : Nature
Languages : en
Pages : 193

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The author of Strangers in the House examines nature’s connection to herself and humanity in this collection of essays. Curious by Nature showcases Candace Savage’s exploration of the varied ways we relate to wildlife from our retelling of fairytales about the big, bad wolf to our struggles to find a balance between harvesting trees and allowing grizzly bears the space to roam. Along the way, she asks intriguing questions to which she sets out to find answers, such as what brings out the mothering instinct in mammals, what are the forces behind the spectacular displays of the northern lights, and just how do crows calculate the optimum height from which to drop their whelks? Savage has spent the last twenty-five years exploring our complex relationships with the natural world: our prejudices, our growing body of scientific knowledge, our awe. She is particularly interested in bridging the gap between mythology and science, between longing and fact. Creating a livable future for ourselves and for other species, she believes, calls for both knowledge and love, and a deep sense of the value of wildness. This book is a record of Savage’s ongoing quest to engage readers in a conversation that enriches our lives and the lives of the animals whose stories she tells. Praise for Curious by Nature “Whimsical . . . . Though Savage is distressed by this “destruction that we, as high-end consumers of the world's splendor, are leaving in our wake,” the purpose of her essays is not to incite indignation but "to bring the ungraspable reality of the non-human world into clearer focus.” In this she succeeds admirably.” —Publishers Weekly

Author: Paul Robbins
Publisher: SAGE Publications
ISBN: 1452265585
Category : Science
Languages : en
Pages : 2742

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"As befits the topic, this beautifully packaged, wonderfully illustrated, interdisciplinary resource has more than 1200 entries written by specialists. A helpful reader′s guide groups topics like agriculture, conservation and ecology, movements and regulations, politics, pollution, and society. A resource guide, chronology, glossary, and list of the UN′s economic indicators complete the set." —Library Journal "...this important work gives a well-focused snapshot of environmentalism in the early 21st Century, and it will remain valuable into the future both for its content and as a yardstick to measure progress toward sustainability and conservation. Summing Up: Recommended. Undergraduates and general readers." —CHOICE Booklist Editors′ Choice 2008 "This superb interdisciplinary work should find a place on the shelves of every public and academic library that has the least bit of interest in environment issues—which should mean just about all." —Booklist (Starred Review) Where does the environment leave off and society begin? When expanding production and consumption drives greenhouse gas emissions that warm the planet, which in turn influence the conditions of economic expansion, it is unclear where the climate ends and the economy begins. This fact is not new to our era, however, our social and natural sciences have only recently come to grips with the incredible complexity of the world described by understanding the environment and society as being of a piece. As a result, in the last decade there has been an unprecedented explosion of new concepts, theories, facts, and techniques that follow from such an understanding. The Encyclopedia of Environment and Society brings together multiplying issues, concepts, theories, examples, problems, and policies, with the goal of clearly explicating an emerging way of thinking about people and nature. With more than 1,200 entries written by experts from incredibly diverse fields, this innovative resource is a first step toward diving into the deep pool of emerging knowledge. The five volumes of this Encyclopedia represent more than a catalogue of terms. Rather, they capture the spirit of the moment, a fascinating time when global warming and genetic engineering represent only two of the most obvious examples of socio-environmental issues. Key Features Examines many new ideas about how the world works, what creates the daunting problems of our time, and how such issues might be addressed, whether by regulation, markets, or new ethics Demonstrates how theories of environmental management based on market efficiency may not be easily reconciled with those that focus on population, and both may certainly diverge from those centering on ethics, justice, or labor Offers contributions from experts in their fields of specialty, including geographers, political scientists, chemists, anthropologists, medical practitioners, development experts, and sociologists, among many others Explores the emerging socio-environmental problems that we face in the next century, as well as the shifting and expanding theoretical tools available for tackling these problems Covers regions of North America in greater detail but also provides a comprehensive picture that approaches, as effectively as possible, a cohesive global vision Key Themes Agriculture Animals Biology and Chemistry Climate Conservation and Ecology Countries Geography History Movements and Regulations Organizations People Politics Pollution Society Packed with essential and up-to-date information on the state of the global socio-environment, the Encyclopedia of Environment and Society is a time capsule of its historic moment and a record of where we stand at the start of the 21st century, making it a must-have resource for any library. These inspiring volumes provide an opportunity for more new ways of thinking, behaving, and living in a more-than-human world.

Author: Valerie Barber
Publisher: University of Alaska Press
ISBN: 1602233985
Category : Science
Languages : en
Pages : 337

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The northwest boreal region (NWB) of North America is a land of extremes. Extending more than 1.3 million square kilometers (330 million acres), it encompasses the entire spectrum between inundated wetlands below sea level to the tallest peak in North America. Permafrost gradients span from nearly continuous to absent. Boreal ecosystems are inherently dynamic and continually change over decades to millennia. The braided rivers that shape the valleys and wetlands continually change course, creating and removing vast wetlands and peatlands. Glacial melt, erosion, fires, permafrost dynamics, and wind-blown loess are among the shaping forces of the landscape. As a result, species interactions and ecosystem processes are shifting across time. The NWB is a data-poor region, and the intention of the NWB Landscape Conservation Cooperative is to determine what data are not available and what data are available. For instance, historical baseline data describing the economic and social relationships in association with the ecological condition of the NWB landscape are often lacking. Likewise, the size and remoteness of this region make it challenging to measure basic biological information, such as species population sizes or trends. The paucity of weather and climate monitoring stations also compound the ability to model future climate trends and impacts, which is part of the nature of working in the north. The purpose of this volume is to create a resource for regional land and resource managers and researchers by synthesizing the latest research on the historical and current status of landscape-scale drivers (including anthropogenic activities) and ecosystem processes, future projected changes of each, and the effects of changes on important resources. Generally, each chapter is coauthored by researchers and land and natural resource managers from the United States and Canada.

Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 490

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Author: Max Foran
Publisher: McGill-Queen's Press - MQUP
ISBN: 0773554289
Category : Nature
Languages : en
Pages : 440

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Book Description
Hardly a day goes by without news of the extinction or endangerment of yet another animal species, followed by urgent but largely unheeded calls for action. An eloquent denunciation of the failures of Canada's government and society to protect wildlife from human exploitation, Max Foran's The Subjugation of Canadian Wildlife argues that a root cause of wildlife depletions and habitat loss is the culturally ingrained beliefs that underpin management practices and policies. Tracing the evolution of the highly contestable assumptions that define the human–wildlife relationship, Foran stresses the price wild animals pay for human self-interest. Using several examples of government oversight at the federal, provincial, and territorial levels, from the Species at Risk Act to the Biodiversity Strategy, Protected Areas Network, and provincial management plans, this volume shows that wildlife policies are as much – or more – about human needs, priorities, and profit as they are about preservation. Challenging established concepts including ecological integrity, adaptive management, sport hunting as conservation, and the flawed belief that wildlife is a renewable resource, the author compels us to recognize animals as sentient individuals and as integral components of complex ecological systems. A passionate critique of contemporary wildlife policy, The Subjugation of Canadian Wildlife calls for belief-change as the best hope for an ecologically healthy, wildlife-rich Canada.