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195 results found
Human beings are one of the most important agents of ecosystem disturbance and have been for millenia (Pyne 1982, 1995). Until recently, fire was the major tool peopel used to alter vegetation to their benefit. The variability in the occurrence and influnce of fire on forested ecosystems over long…
Author(s): Daniel C. Dey, Richard P. Guyette
Keywords: Fire history, Ontario, travel, disturbance, vegetation, migration, Ottawa river, Great Lakes
Source: Forest Research Report. Issue 140. 1996. pp. 1-9
Year: 1996
Quantitative data on structure and composition of all strata of vegetation were collected from 20 study sites in the Boston Mountains Subsection of the Ozark Mountains of northwestern Arkansas in June 2004. All study sites were located at upper slope or ridgetop positions and occurred at elevations…
Author(s): Steven L. Stephenson, Harold S. Adams, Cynthia D. Huebner
Keywords: Appalachians, forest ecology, Ozarks, vegetation
Source: Rhodora. 109(938): 197-221.
Year: 2007
The exponential growth of recreation and tourism or ecotourism activities is affecting ecological processes in protected areas of Chile. In order to protect protected areas integrity, all projects inside their boundaries must pass through the Environmental Impact Assessment (EIA). The purpose of…
Author(s): Anibal Pauchard, Eduardo Ugarte, Jaime Millan
Keywords: wilderness, protected areas, recreation, tourism, ecotourism, ecosystems, biodiversity, vegetation, monitoring, human impacts, Chile
Source: In: McCool, Stephen F.; Cole, David N.; Borrie, William T.; O’Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference—Volume 3: Wilderness as a place for scientific inquiry; 1999 May 23–27; Missoula, MT. Proceedings RMRS-P-15-VOL-3. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 111-116
Year: 2000
This long-term study, monitoring visitor impact on subalpine vegetation beginning in 1967, revealed that after 30 years all treatment plots had returned to pre-treatment ratios of vegetation (all species combined), organic litter and bare ground. Higher trampling intensities produced longer term…
Author(s): Ernest Hartley
Keywords: Wilderness, visitor impacts, trampling, vegetation, Glacier National Park
Source: In: Cole, David N.; McCool, Stephen F.; Borrie, William T.; O’Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference-Volume 5: Wilderness ecosystems, threats, and management; 1999 May 23–27; Missoula, MT. Proceedings RMRS-P-15-VOL-5. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 124-132
Year: 2000
The consequences of human trampling disturbance on two codominant vegetation types at the Wyoming Nature Conservancy’s Sweetwater Preserve were examined. Small trampling lanes (1.5m x 0.5m) were established in both vegetation types and trampling treatments ranging from 0 to 800 passes were applied…
Author(s): Christopher A. Monz, Tami Pokorny, Jerry Freilich, Sharon Kehoe, Dayna Ayers-Baumeister
Keywords: Artemisia, Equisetum, trampling, vegetation, visitor use, Wyoming
Source: In: Cole, David N.; McCool, Stephen F.; Borrie, William T.; O’Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference-Volume 5: Wilderness ecosystems, threats, and management; 1999 May 23–27; Missoula, MT. Proceedings RMRS-P-15-VOL-5. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 153-159
Year: 2000
Forested wetland restoration assessment is difficult because of the timeframe necessary for the development of a forest ecosystem. The development of a forested wetland ecosystem includes the recovery of hydrology, soils, vegetation, and faunal communities. To assess forested wetland restoration…
Author(s): R. K. Kolka, C. C. Trettin, E. A. Nelson, C. D. Barton, D. E. Fletcher
Keywords: Wetland, restoration, assessment, bottomland, riparian, succession, soil, hydrology, vegetation, fauna
Source: Journal of Environmental Monitoring and Restoration 1(1): 37-51
Year: 2002
The principal purpose of any classification is to relate common properties among different entities to facilitate understanding of evolutionary and adaptive processes. In the context of this volume, it is to facilitate ecosystem stewardship, i.e., to help support ecosystem conservation and…
Author(s): Dennis H. Grossman, Patrick Bourgeron, Wolf-Dieter N. Busch, David T. Cleland, William Platts, G. Ray, C. Robins, Gary Roloff
Keywords: Biogeography, ecoregions, vegetation, watersheds, climate, geology
Source: Ecological stewardship: a common reference for ecosystem management, vol. 2. p.353-393. (1999)
Year: 1999
Recent advances in remote sensing and the adoption of geographic information systems (GIS) have greatly increased the availibility of high-resolution spatial and attribute data for examing the relationship between social and vegetation structure in urban areas. There are several motivations for…
Author(s): J. Morgan Grove, Mary L. Cadenasso, William R., Jr. Burch, Steward T. Pickett, Kirsten Schwarz, Jarlath O'Neil-Dunne, Matthew Wilson, Austin Troy, Christopher Boone
Keywords: Baltimore, landcover, LTER, remote-sensing, social structure. urban ecology, vegetation
Source: Society and Natural Resources 19:117-136
Year: 2006
Forested wetland restoration assessment is difficult because of the timeframe necessary for the development of a forest ecosystem. The development of a forested wetland ecosystem includes the recovery of hydrology, soils, vegetation, and faunal communities. To assess forested wetland restoration…
Author(s): R.K. Kolka, Carl C. Trettin, E.A. Nelson, C.D. Barton, D.E. Fletcher
Keywords: Wetland, restoration, assessment, bottomland, riparian, succession, soil, hydrology, vegetation, fauna
Source: Journal of Environmental Monitoring & Restoration 1(1): 37-51
Year: 2002
Effective natural resources management requires knowledge of the character of resources and of interactions between resource components. Estimates of forest and other vegetation resources are presented to provide managers with information about the character of the resource. Slightly less than half…
Author(s): Willem W.S. van Hees, Bert R. Mead
Keywords: Alaska (southeast), inventory, forest, vegetation
Source: Landscape and Urban Planning. 72: 25-48
Year: 2005
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