Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 61 - 76 of 76
Full-Text Articles in Social and Behavioral Sciences
The Geomorphic Influences Of Beaver Dams And Failures Of Beaver Dams, David Butler, George Malanson
The Geomorphic Influences Of Beaver Dams And Failures Of Beaver Dams, David Butler, George Malanson
George P Malanson
No abstract provided.
Sedimentation Rates And Patterns In Beaver Ponds In A Mountain Environment, David Butler, George Malanson
Sedimentation Rates And Patterns In Beaver Ponds In A Mountain Environment, David Butler, George Malanson
George P Malanson
Sediment depth was measured at several sites within each of eight beaver ponds in Glacier National Park, Montana, and sediment samples were collected from five of these ponds. Accumulation rates of sediments far exceeded published rates from boreal forest landscapes in eastern and central North America. Pond area strongly predicts volume of sedimentation. Textural differences illustrated spatial variations associated with position in a pond and along a pond sequence. Organic matter content was significantly higher in older ponds, and has ramifications for the development of the benthos and the long-term storage of matter in ponds. The role of beavers as …
Snow-Avalanche Paths; Conduits From The Periglacial-Alpine To The Subalpine-Depositional Zone, David Butler, George Malanson, Stephen Walsh
Snow-Avalanche Paths; Conduits From The Periglacial-Alpine To The Subalpine-Depositional Zone, David Butler, George Malanson, Stephen Walsh
George P Malanson
No abstract provided.
Precipitation And Temperature Estimation Error At Alpine Treeline Ecotones Using The Mountain Climate Simulator Model (Mt-Clim), Darren Grafius, George Malanson
Precipitation And Temperature Estimation Error At Alpine Treeline Ecotones Using The Mountain Climate Simulator Model (Mt-Clim), Darren Grafius, George Malanson
George P Malanson
In order to improve modeling of alpine treeline responses to climate change, estimations of snowfall at treeline sites are needed. The MT-CLIM climate model was evaluated for this purpose by extrapolating precipitation and temperature from standard weather stations at lower elevations to 30 alpine SNOTEL study sites across the western United States. Quantification of the topography between the base stations and the SNOTEL sites was used in inverse distance weighting and compared to straight-line weighting. The predicted temperature and precipitation under different weighting methods were compared to observed data over three months during the winter of 2006-2007. The errors were …
Alpine Treeline Of Western North America; Linking Organism-To-Landscape Dynamics, George Malanson, David Butler, Daniel Fagre, Stephen Walsh
Alpine Treeline Of Western North America; Linking Organism-To-Landscape Dynamics, George Malanson, David Butler, Daniel Fagre, Stephen Walsh
George P Malanson
No abstract provided.
Modeling Interactive Effects Of Climate Change, Air Pollution, And Fire On A California Shrubland, George Malanson, Walter Westman
Modeling Interactive Effects Of Climate Change, Air Pollution, And Fire On A California Shrubland, George Malanson, Walter Westman
George P Malanson
A computer simulation model (FINICS) was used to project the interactive effects of CO2-induced climate change on a drought-deciduous shrubland. FINICS simulates the competitive relations of five dominant shrub species of Californian coastal sage scrub, based on their aboveground growth and reproductive behavior. The model was used to simulate the separate and combined effects of altered precipitation, temperature, ambient ozone levels, and fuel loads and fire intensity, on species composition. Both growth chamber and field data were used to parameterize the model. Projections show that changes attributed to climate variation alone were markedly accentuated when the indirect effects of climate …
Introduction To The Special Issue: Mountain Geomorphology--Integrating Earth Systems, David Butler, Stephen Walsh, George Malanson
Introduction To The Special Issue: Mountain Geomorphology--Integrating Earth Systems, David Butler, Stephen Walsh, George Malanson
George P Malanson
No abstract provided.
The Biodiversity Crisis., J. Kupfer, George Malanson
The Biodiversity Crisis., J. Kupfer, George Malanson
George P Malanson
No abstract provided.
Neutral Landscapes: Bases For Exploration In Landscape Ecology, Qian Wang, George Malanson
Neutral Landscapes: Bases For Exploration In Landscape Ecology, Qian Wang, George Malanson
George P Malanson
No abstract provided.
Sedimentation Patterns And Rates In Beaver Ponds, David Butler, George Malanson
Sedimentation Patterns And Rates In Beaver Ponds, David Butler, George Malanson
George P Malanson
No abstract provided.
Ecological Response To Global Climatic Change, George Malanson, D. Butler, S. Walsh
Ecological Response To Global Climatic Change, George Malanson, D. Butler, S. Walsh
George P Malanson
This volume, celebrating the 100th anniversary of the Association of American Geographers, is dedicated to the idea that geographers can make substantive differences to the lives of people and to the well being of the planet that gives the discipline its name. WorldMinds provides broad exposure to a geography that is engaged with discovery, interpretation, and problem solving. Its 100 succinct chapters demonstrate the theories, methods, and data used by geographers, and exemplify the conceptual and topical richness of contemporary geography. The 150 contributing authors and co-authors address the challenges posed by issues such as globalization, regional and ethnic conflict, …
A Major Sediment Pulse In A Subalpine River Caused By Debris Flows In Montana, Usa, David Butler, George Malanson
A Major Sediment Pulse In A Subalpine River Caused By Debris Flows In Montana, Usa, David Butler, George Malanson
George P Malanson
No abstract provided.
Non-Equilibrium Geomorphic Processes And Patterns On Avalanche Paths In The Northern Rocky Mountains, U.S.A, David Butler, George Malanson
Non-Equilibrium Geomorphic Processes And Patterns On Avalanche Paths In The Northern Rocky Mountains, U.S.A, David Butler, George Malanson
George P Malanson
No abstract provided.
Nonequilibrium Geomorphic Processes And Deterministic Chaos, George Malanson, David Butler, Konstantine Georgakakos
Nonequilibrium Geomorphic Processes And Deterministic Chaos, George Malanson, David Butler, Konstantine Georgakakos
George P Malanson
No abstract provided.
Linear Vegetation Patterns In Subalpine Forests., Matthew Bekker, George Malanson
Linear Vegetation Patterns In Subalpine Forests., Matthew Bekker, George Malanson
George P Malanson
The study of vegetation pattern can yield valuable insight into interactions between vegetation and the environment. These interactions often involve positive feedback wherein biological, atmospheric, or geomorphic processes are amplified, resulting in abrupt vegetation boundaries, rapid changes, and/or thresholds in system behavior. Many relatively linear vegetation patterns have been described in subalpine forests, including "ribbon forests," "krummholz islands," "hedges," "fingers," and "fir waves." In this paper I review research on these phenomena, including an assessment of their distribution, the combinations of environment and species that produce them, and the implications of their existence for using vegetation boundaries as indicators of …
The Fractal Shape Of Riparian Forest Patches, K. Rex, George Malanson
The Fractal Shape Of Riparian Forest Patches, K. Rex, George Malanson
George P Malanson
Remnant patches of a forest corridor were examined along the Iowa and Cedar Rivers, Iowa. A fractal dimension was found for these patches which was incorporated with the perimeter:area ratio in an index of shape. This index was then regressed on 5 hydrogeomorphic variables hypothesized to represent processes which might control patch dimensions, plus a variable to represent human impact. The hydrogeomorphic variables were derived from topographic maps; the impact variable used was the proportion of perimeter that was occupied by a road, railroad, transmission line, urban or other built area, or a straight line judged to be agricultural. Three …