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Ecosystem Dynamics of the Boreal Forest : The Kluane Project

2001-03-31 Science
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Release : 2001-03-31
Genre : Science
Kind : eBook
Book Rating : 349/5 ( reviews)

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Book Synopsis Ecosystem Dynamics of the Boreal Forest : The Kluane Project by : Vancouver Charles J. Krebs Professor of Zoology University of British Columbia

Download or read book Ecosystem Dynamics of the Boreal Forest : The Kluane Project written by Vancouver Charles J. Krebs Professor of Zoology University of British Columbia. This book was released on 2001-03-31. 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.

Boreal Forest and Climate Change

2008-09-24 Science
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Release : 2008-09-24
Genre : Science
Kind : eBook
Book Rating : 187/5 ( reviews)

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Book Synopsis Boreal Forest and Climate Change by : Pertti Hari

Download or read book Boreal Forest and Climate Change written by Pertti Hari. This book was released on 2008-09-24. Available in PDF, EPUB and Kindle. Book excerpt: The Forest Primary Production Research Group was born in the Department of S- viculture, University of Helsinki in the early 1970s. Intensive ?eld measurements of photosynthesis and growth of forest vegetation and use of dynamic models in the interpretation of the results were characteristic of the research in the group. Electric instrumentation was based on analogue techniques and the analysis of the obtained measurements was based on self-written programs. Joint research projects with the Research Group of Environmental Physics at the Department of Physics, lead by Taisto Raunemaa (1939–2006) started in the late 1970s. The two research groups shared the same quantitative methodology, which made the co-operation fruitful. Since 1980 until the collapse of the Soviet Union the Academy of Finland and the Soviet Academy of Sciences had a co-operation program which included our team. The research groups in Tartu, Estonia, lead by Juhan Ross (1925–2002) and in Petrozawodsk, lead by Leo Kaipiainen (1932–2004) were involved on the Soviet side. We had annual ?eld measuring campaigns in Finland and in Soviet Union and research seminars. The main emphasis was on developing forest growth models. The research of Chernobyl fallout started a new era in the co-operation between forest ecologists and physicists in Helsinki. The importance of material ?uxes was realized and introduced explicitly in the theoretical thinking and measurements.

Alaska's Changing Boreal Forest

2006-01-12 Science
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Release : 2006-01-12
Genre : Science
Kind : eBook
Book Rating : 54X/5 ( reviews)

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Book Synopsis Alaska's Changing Boreal Forest by : F. Stuart Chapin

Download or read book Alaska's Changing Boreal Forest written by F. Stuart Chapin. This book was released on 2006-01-12. Available in PDF, EPUB and Kindle. Book excerpt: The boreal forest is the northern-most woodland biome, whose natural history is rooted in the influence of low temperature and high-latitude. Alaska's boreal forest is now warming as rapidly as the rest of Earth, providing an unprecedented look at how this cold-adapted, fire-prone forest adjusts to change. This volume synthesizes current understanding of the ecology of Alaska's boreal forests and describes their unique features in the context of circumpolar and global patterns. It tells how fire and climate contributed to the biome's current dynamics. As climate warms and permafrost (permanently frozen ground) thaws, the boreal forest may be on the cusp of a major change in state. The editors have gathered a remarkable set of contributors to discuss this swift environmental and biotic transformation. Their chapters cover the properties of the forest, the changes it is undergoing, and the challenges these alterations present to boreal forest managers. In the first section, the reader can absorb the geographic and historical context for understanding the boreal forest. The book then delves into the dynamics of plant and animal communities inhabiting this forest, and the biogeochemical processes that link these organisms. In the last section the authors explore landscape phenomena that operate at larger temporal and spatial scales and integrates the processes described in earlier sections. Much of the research on which this book is based results from the Bonanza Creek Long-Term Ecological Research Program. Here is a synthesis of the substantial literature on Alaska's boreal forest that should be accessible to professional ecologists, students, and the interested public.

Restoration and Reclamation of Boreal Ecosystems

2012-09-20 Nature
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Release : 2012-09-20
Genre : Nature
Kind : eBook
Book Rating : 715/5 ( reviews)

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Book Synopsis Restoration and Reclamation of Boreal Ecosystems by : Dale Vitt

Download or read book Restoration and Reclamation of Boreal Ecosystems written by Dale Vitt. This book was released on 2012-09-20. Available in PDF, EPUB and Kindle. Book excerpt: Provides the conceptual backbone and specific information necessary for the ecologically sound restoration and sustainable development of boreal ecosystems.

Ecosystem Dynamics of the Boreal Forest

2001 Science
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Release : 2001
Genre : Science
Kind : eBook
Book Rating : 936/5 ( reviews)

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Book Synopsis Ecosystem Dynamics of the Boreal Forest by : Charles J. Krebs

Download or read book Ecosystem Dynamics of the Boreal Forest written by Charles J. Krebs. This book was released on 2001. 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.

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