Wind Redistribution of Snow at Treeline, Medicine Bow Mountains, Wyoming

Wind Redistribution of Snow at Treeline, Medicine Bow Mountains, Wyoming PDF Author: Christopher Aaron Hiemstra
Publisher:
ISBN:
Category : Wind-snow interaction
Languages : en
Pages : 326

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Wind Redistribution of Snow at Treeline, Medicine Bow Mountains, Wyoming

Wind Redistribution of Snow at Treeline, Medicine Bow Mountains, Wyoming PDF Author: Christopher Aaron Hiemstra
Publisher:
ISBN:
Category : Wind-snow interaction
Languages : en
Pages : 326

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Snow Redistribution by Wind and the Subsequent Meltwater Influence on Ecosystem Properties at Treeline in the Medicine Bow Mountains, Wyoming

Snow Redistribution by Wind and the Subsequent Meltwater Influence on Ecosystem Properties at Treeline in the Medicine Bow Mountains, Wyoming PDF Author: Christopher Aaron Hiemstra
Publisher:
ISBN:
Category : Mountain ecology
Languages : en
Pages : 360

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The Changing Alpine Treeline

The Changing Alpine Treeline PDF Author: David R. Butler
Publisher: Elsevier
ISBN: 0080957099
Category : Science
Languages : en
Pages : 223

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Book Description
The alpine treeline ecotone (ATE) is an area of transition high on mountains where closed canopy forests from lower elevations give way to the open alpine tundra and rocky expanses above. Alpine tundra is an island biome and its ecotone with forest is subject to change, and like oceanic islands, alpine tundra is subject to invasion – or the upward advance of treeline. The invasion of tundra by trees will have consequences for the tundra biome as invasion does for other island flora and fauna. To examine the invasibility of tundra we take a plant’s-eye-view, wherein the local conditions become extremely important. Among these local conditions, we find geomorphology to be exceptionally important. We concentrate on aspects of microtopography (and microgeomorphology) and microclimate because these are the factors that matter: from the plant’s-eye-view, but we pay attention to multiple scales. At coarse scales, snow avalanches and debris flows are widespread and create “disturbance treelines whose elevation is well below those controlled by climate. At medium scales, turf-banked terraces create tread-and-riser topography that is a difficult landscape for a tree seedling to survive upon because of exposure to wind, dryness, and impenetrable surfaces. At fine scales, turf exfoliation of the fronts of turf-banked risers, and boulders, offer microsites where tree seedlings may find shelter and are able to gain a foothold in the alpine tundra; conversely, however, surfaces of needle-ice pans and frost heaving associated with miniature patterned ground production are associated with sites inimical to seedling establishment or survival. We explicitly consider how local scale processes propagate across scales into landscape patterns. The objective of this book is to examine the controls on change at alpine treeline. All the papers are focused on work done in Glacier National Park, Montana, USA. Although any one place is limiting, we are able to examine the alpine treeline here in some detail – and an advantage is that the treeline ecotone in Glacier National Park is quite variable in itself due to the underlying variability in geomorphology at multiple scales. This book will provide insights into an important ecological phenomenon with a distinctly geomorphic perspective. The editors collectively have over 100 years of experience in working in geomorphology, biogeography, and ecology. They also have each worked on research in Glacier National Park for several decades. The book will be a reference for a variety of professionals and students, both graduate and undergraduate, with interests in Physical Geography, Geomorphology, Ecology, and Environmental Science. Because of the importance of the alpine treeline ecotone for recreation and aesthetic interests in mountain environments, wildland and park managers will also use this book. * Subject matter: geomorphology at alpine treeline* Expertise of contributors: each editor brings over 25 years of experience in studies of ecotones and geomorphology, and collectively over 100 years of experience in Glacier National Park* Changing alpine treeline examines climate change

Alpine and Polar Treelines in a Changing Environment

Alpine and Polar Treelines in a Changing Environment PDF Author: Gerhard Wieser
Publisher: MDPI
ISBN: 3039286307
Category : Science
Languages : en
Pages : 268

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Book Description
Concerns have been raised with respect to the state of high-altitude and high-latitude treelines, as they are anticipated to undergo considerable modifications due to global changes, and especially due to climate warming. As high-elevation treelines are temperature-limited vegetation boundaries, they are considered to be sensitive to climate warming. As a consequence, in this future, warmer environment, an upward migration of treelines is expected because low air and root-zone temperatures constrain their regeneration and growth. Despite the ubiquity of climate warming, treeline advancement is not a worldwide phenomenon: some treelines have been advancing rapidly, others have responded sluggishly or have remained stable. This variation in responses is attributed to the potential interaction of a continuum of site-related factors that may lead to the occurrence of locally conditioned temperature patterns. Competition amongst species and below-ground resources have been suggested as additional factors explaining the variability in the movement of treelines. This Special Issue (book) is dedicated to the discussion of treeline responses to changing environmental conditions in different areas around the globe.

Mountain Timberlines

Mountain Timberlines PDF Author: Friedrich-Karl Holtmeier
Publisher: Springer Science & Business Media
ISBN: 1402097050
Category : Science
Languages : en
Pages : 445

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Book Description
For more than 40 years I have been engaged in timberline research. Thus, one could suppose that writing this book should not have been too difficult. It was harder, however, than expected, and in the end I felt that more questions had arisen than could be answered within its pages. Perhaps it would have been easier to write the book 30 years ago and then leave the subject to mature. Lastly it was the late Prof. Heinz Ellenberg who had convinced me to portray a much needed and complete picture of what we know of the timberline with special respect to its great physiognomic, structural and ecological variety. The first version of this book was p- lished in the German language (Holtmeier, 2000). Nevertheless, I was very delighted when Prof. Martin Beniston encouraged me to prepare an English edition for the series ‘Advances in Global Change Research’, which guaranteed a wider circulation. Timberline is a worldwide and very heterogeneous phenomenon, which can only be presented by way of examples. My own field experience is necessarily limited to certain timberline areas, such as the Alps, northern Scandinavia, northern Finland and many high mountain ranges in the western United States and Canada. However, my own observations and the results of my and my previous collaborators research were essential for developing the concept of the book and became integrated into the picture of timberline that is presented in the following chapters.

Transport Processes in Nature Hardback with CD-ROM

Transport Processes in Nature Hardback with CD-ROM PDF Author: William A. Reiners
Publisher: Cambridge University Press
ISBN: 9780521800495
Category : Nature
Languages : en
Pages : 332

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Book Description
A conceptual framework for the study and understanding of the propagation of ecological influences in nature.

Biodiversity and Conservation in Forests

Biodiversity and Conservation in Forests PDF Author: Diana F. Tomback
Publisher: MDPI
ISBN: 3038975745
Category : Environmental sciences
Languages : en
Pages : 173

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Book Description
This book is a printed edition of the Special Issue "Biodiversity and Conservation in Forests" that was published in Forests

Arctic, Antarctic, and Alpine Research

Arctic, Antarctic, and Alpine Research PDF Author:
Publisher:
ISBN:
Category : Alpine regions
Languages : en
Pages : 564

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Transport Processes in Nature PB with CD-ROM

Transport Processes in Nature PB with CD-ROM PDF Author: William A. Reiners
Publisher: Cambridge University Press
ISBN: 9780521804844
Category : Nature
Languages : en
Pages : 322

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Book Description
William Reiners and Kenneth Driese introduce a conceptual framework for studying the propagation of ecological influences across landscapes. They also provide examples of models that describe and predict propagation. Their volume is an excellent graduate-level introduction to the field of landscape ecology, which is concerned with the effects of spatial patterns on ecological processes, especially the movement of organisms, abiotic materials and energy across landscapes.

Proceedings of the Western Snow Conference

Proceedings of the Western Snow Conference PDF Author:
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 368

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Book Description