Ecological Effects of the Wickersham Dome Fire Near Fairbanks, Alaska
Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
Published: 1979
Total Pages: 80
ISBN-13:
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Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
Published: 1979
Total Pages: 80
ISBN-13:
DOWNLOAD EBOOKAuthor: Tina V. Boucher
Publisher:
Published: 2003
Total Pages: 68
ISBN-13:
DOWNLOAD EBOOKBetween 1977 and 1997, 4000 ha were burned to promote regeneration of tree and shrub species used for browse by moose (Alces alces) in the Kenai Mountains. Species composition was documented along burned and unburned transects at 17 prescribed burn sites. Relationships among initial vegetation composition, physical site characteristics, browse species abundance, and competitive herbaceous vegetation were examined to determine controls on browse species regeneration after prescribed burning. Browse species abundance after burning was inversely related to Calamagrostis canadensis Michx. Beauv. (bluejoint reedgrass) abundance prior to burning. Calamagrostis canadensis abundance was related to specific landscape characteristics. Depositional slopes, such as fluvial valley bottoms and toe slopes, often featured soils with deep, loamy surface horizons. Sites with these characteristics generally showed large increases in C. canadensis cover after prescribed burning, even when C. canadensis was a low percentage (3 percent) of the canopy cover prior to burning. The most important preburn variables for predicting postburn browse species abundance were preburn C. canadensis cover and the type of surficial deposit. Site conditions that are favorable to C. canadensis may be problematic for successful regeneration of browse species, especially if browse species are not present in the initial composition.
Author:
Publisher:
Published: 2000
Total Pages: 92
ISBN-13:
DOWNLOAD EBOOKAuthor: Herman H. Shugart
Publisher: Cambridge University Press
Published: 2005-03-07
Total Pages: 584
ISBN-13: 9780521619738
DOWNLOAD EBOOKThe 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:
Publisher:
Published: 1981
Total Pages: 64
ISBN-13:
DOWNLOAD EBOOKAuthor: Audrey Jean Magoun
Publisher:
Published: 1991
Total Pages: 316
ISBN-13:
DOWNLOAD EBOOKAuthor: D. C. West
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 530
ISBN-13: 1461259509
DOWNLOAD EBOOKSuccession-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: Robert J. Whelan
Publisher: Cambridge University Press
Published: 1995-08-10
Total Pages: 364
ISBN-13: 0521328721
DOWNLOAD EBOOKWildfires kill many animals, but are populations of animals affected? How do animals survive the passage of fire? Why do some tree species survive and others die in a fire? Do frequent fires cause changes in plant community composition? Answering questions such as these requires an understanding of the ecological effects of fire. Aimed at senior undergraduate students, researchers, foresters and other land managers, Dr Whelan's book examines the changes wrought by fires with reference to general ecological theory. The impacts of fires on individual organisms, populations and communities are examined separately, and emphasis is placed on the importance of fire regime. Each chapter includes a listing of 'outstanding questions' that identify gaps in current knowledge. The book finishes by summarising the major aspects of ecology that are of particular relevance to management of fires - both protection against wildfires and deliberate use of fire.
Author:
Publisher:
Published: 1978
Total Pages: 80
ISBN-13:
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