Quantifying Upland Boreal Forest Successional Pathways Near Fairbanks, Alaska PDF Download
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Author: Thomas Andrew Kurkowski
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 92
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Book Description
"Previous studies have suggested that post-fire forest succession in Interior Alaska can occur in two different ways. Self-replacement occurs when pre-fire dominant species immediately replace themselves as the canopy dominants after fire. Species-dominance relay occurs when, after simultaneously establishing themselves after fire, deciduous trees relinquish canopy dominance to conifer species as the stand ages. The relative importance of these different successional processes at landscape scales in Interior Alaska is unknown. To test for the importance of these two trajectories, we built a multinomial logistic regression model explaining the relationship between classified vegetation type and topographic variables. We also determined the relative occurrence of species-dominance relay by comparing aged stands to known successional patterns. The model correctly predicted 78% of spruce distribution, and the majority of stands are not following the species-dominance relay pattern, implying that most of the study area appears to be following a self-replacement trajectory with only a small proportion of sites capable of supporting both deciduous and spruce species. These results have important implications for modeling forest succession in Interior Alaska because of the importance of these dynamics in determining the fire regime, carbon storage, and global warming scenanos"--Leaf iii.
Author: Thomas Andrew Kurkowski
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 92
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Book Description
"Previous studies have suggested that post-fire forest succession in Interior Alaska can occur in two different ways. Self-replacement occurs when pre-fire dominant species immediately replace themselves as the canopy dominants after fire. Species-dominance relay occurs when, after simultaneously establishing themselves after fire, deciduous trees relinquish canopy dominance to conifer species as the stand ages. The relative importance of these different successional processes at landscape scales in Interior Alaska is unknown. To test for the importance of these two trajectories, we built a multinomial logistic regression model explaining the relationship between classified vegetation type and topographic variables. We also determined the relative occurrence of species-dominance relay by comparing aged stands to known successional patterns. The model correctly predicted 78% of spruce distribution, and the majority of stands are not following the species-dominance relay pattern, implying that most of the study area appears to be following a self-replacement trajectory with only a small proportion of sites capable of supporting both deciduous and spruce species. These results have important implications for modeling forest succession in Interior Alaska because of the importance of these dynamics in determining the fire regime, carbon storage, and global warming scenanos"--Leaf iii.
Author: F. Stuart Chapin
Publisher: Oxford University Press
ISBN: 0195154312
Category : Nature
Languages : en
Pages : 369
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Book Description
The Boreal forest is the northern-most forest in the world, whose organisms and dynamics are shaped by low temperature and high latitude. The Alaskan Boreal forest is warming as rapidly as any place on earth, providing an opportunity to examine a biome as it adjusts to change. This book looks at this issue.
Author:
Publisher:
ISBN:
Category : Animal ecology
Languages : en
Pages : 92
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Book Description
Author: D. C. West
Publisher: Springer Science & Business Media
ISBN: 1461259509
Category : Science
Languages : en
Pages : 530
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Book Description
Succession-nothing in plant, community, or ecosystem ecology has been so elaborated by terminology, so much reviewed, and yet so much the center of controversy. In a general sense, every ecologist uses the concept in teaching and research, but no two ecologists seem to have a unified concept of the details of succession. The word was used by Thoreau to describe, from a naturalist's point of view, the general changes observed during the transition of an old field to a forest. As data accumulated, a lengthy taxonomy of succession developed around early twentieth century ecologists such as Cooper, Clements, and Gleason. Now, nearer the end of the century, and after much discussion concerning the nature of vegetation communities, where do ecologists stand with respect to knowledge of ecological succession? The intent of this book is not to rehash classic philosophies of succession that have emerged through the past several decades of study, but to provide a forum for ecologists to present their current research and present-day interpretation of data. To this end, we brought together a group of scientists currently studying terrestrial plant succession, who represent research experience in a broad spectrum of different ecosystem types. The results of that meeting led to this book, which presents to the reader a unique summary of contemporary research on forest succession.
Author: F Stuart Chapin III
Publisher: Springer Science & Business Media
ISBN: 0387216634
Category : Science
Languages : en
Pages : 449
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Book Description
Features review questions at the end of each chapter; Includes suggestions for recommended reading; Provides a glossary of ecological terms; Has a wide audience as a textbook for advanced undergraduate students, graduate students and as a reference for practicing scientists from a wide array of disciplines
Author: Herman H. Shugart
Publisher: Cambridge University Press
ISBN: 9780521619738
Category : Nature
Languages : en
Pages : 584
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Book Description
The world's boreal forests, which lie to the south of the Arctic, are considered to be the Earth's most significant terrestrial ecosystems. A panel of ecologists here provide a synthesis of the important patterns and processes which occur in boreal forests and review the principal mechanisms which control the forest's patterns.
Author: Leonard F. Ruggiero
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 198
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Book Description
This cooperative effort by USDA Forest Service Research and the National Forest System assesses the state of knowledge related to the conservation status of four forest carnivores in the western United States: American marten, fisher, lynx, and wolverine. The conservation assessment reviews the biology and ecology of these species. It also discusses management considerations stemming from what is known and identifies information needed. Overall, we found huge knowledge gaps that make it difficult to evaluate the species' conservation status.
Author: JERRY. BROWN
Publisher: Forgotten Books
ISBN: 9780666831941
Category :
Languages : en
Pages : 0
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Book Description
Excerpt from Ecological Investigations of the Tundra Biome in the Prudhoe Bay Region, Alaska Observations on the Seasonal Snow Cover and Radiation Climate at Prudhoe Bay, Alaska during 1972. Carl Benson, Robert Timmer, Bjorn Holmgren, Gunter Weller, and Scott Parrish. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Jerry Brown
Publisher: Stroudsburg, Pa. : Dowden, Hutchinson & Ross ; [New York] : Distributed world-wide by Academic Press
ISBN:
Category : Nature
Languages : en
Pages : 614
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Book Description
One of a series of volumes reporting results of research under the International Biological Program concerning the ecology of the Alaskan arctic coastal plain.
Author: David J. Downing
Publisher:
ISBN: 9780778545729
Category : Ecological regions
Languages : en
Pages : 254
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Book Description
This document presents the climatic, physiographic, vegetation, soil, wildlife and land use attributes that characterize each natural region and subregion. It has been organized into four parts: part one outlines national region and subregion concepts, part two describes methods used to generate climate statistics, part three presents a comparative analysis of selected climate statistics to facilitate comparison of natural regions and subregions, and part four presents detailed climatic, vegetation, soils and physiographic descriptions for six natural regions and twenty-one natural subregions currently recognized in Alberta.
