Open Access. Powered by Scholars. Published by Universities.®

Forest Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2007

Discipline
Institution
Keyword
Publication
Publication Type

Articles 1 - 30 of 233

Full-Text Articles in Forest Sciences

Gordie News, December 2007, West Chester University Of Pennsylvania Dec 2007

Gordie News, December 2007, West Chester University Of Pennsylvania

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.


Monitoring Old Growth In Frequent-Fire Landscapes, Carl E. Fiedler, Peter Friederici, Mark Petruncio Dec 2007

Monitoring Old Growth In Frequent-Fire Landscapes, Carl E. Fiedler, Peter Friederici, Mark Petruncio

Forest Management Faculty Publications

In this article, we discuss how to monitor the structural and functional attributes of old growth, as well as its associated plant communities and wildlife, both to determine the possible need for treatment and to assess post-treatment progress toward desired conditions. Monitoring can be used to detect conditions (or agents) that threaten existing old growth and also to document indicators of healthy, functioning old-growth systems.


Managing For Old Growth In Frequent-Fire Landscapes, Carl E. Fiedler, Peter Friederici, Mark Petruncio, Charles Denton, W. David Hacker Dec 2007

Managing For Old Growth In Frequent-Fire Landscapes, Carl E. Fiedler, Peter Friederici, Mark Petruncio, Charles Denton, W. David Hacker

Forest Management Faculty Publications

There is no one-size-fits-all approach to managing frequent-fire, old-growth forests. However, there are general guidelines to follow: 1) set objectives for both structure (tree density, diameter distribution, tree species composition, spatial arrangement, amount of coarse woody debris) and function (nutrient cycling, desired tree species regeneration); 2) prioritize treatments according to ecological, economic, and social needs and risks; 3) identify the potential treatments (natural fire, prescribed fire, silvicultural cutting) that best meet the objectives and scale of the project; and 4) implement the treatment (s). We discuss each of these guidelines in this article.


Review: Wild Trees: A Story Of Passion And Daring, Karen Minton Dec 2007

Review: Wild Trees: A Story Of Passion And Daring, Karen Minton

Georgia Library Quarterly

Review of the non-fiction book "Wild Trees: A Story of Passion and Daring," by Richard Preston.


Smokejumper Obituary: Lewis, Tedford P. (Missoula 1943), National Smokejumper Association Nov 2007

Smokejumper Obituary: Lewis, Tedford P. (Missoula 1943), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


The Ecological Significance Of The Herbaceous Layer In Temperate Forest Ecosystems, Frank S. Gilliam Nov 2007

The Ecological Significance Of The Herbaceous Layer In Temperate Forest Ecosystems, Frank S. Gilliam

Biological Sciences Faculty Research

Despite a growing awareness that the herbaceous layer serves a special role in maintaining the structure and function of forests, this stratum remainsan underappreciated aspect of forest ecosystems. In this article I review and synthesize information concerning the herb layer’s structure,composition, and dynamics to emphasize its role as an integral component of forest ecosystems. Because species diversity is highest in the herb layeramong all forest strata, forest biodiversity is largely a function of the herb-layer community. Competitive interactions within the herb layer candetermine the initial success of plants occupying higher strata, including the regeneration of dominant overstory tree species. Furthermore, …


Gordie News, November 2007, West Chester University Of Pennsylvania Nov 2007

Gordie News, November 2007, West Chester University Of Pennsylvania

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.


Smokejumper Obituary: Lowman, Ben J. (Missoula 1968), National Smokejumper Association Oct 2007

Smokejumper Obituary: Lowman, Ben J. (Missoula 1968), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Relative Effects Of Mammal Herbivory And Plant Spacing On Seedling Recruitment Following Fire And Mining, Michael H. Parsons, Christine M. Rafferty, Byron B. Lamont, Kenneth Dods, Meredith M. Fairbanks Oct 2007

Relative Effects Of Mammal Herbivory And Plant Spacing On Seedling Recruitment Following Fire And Mining, Michael H. Parsons, Christine M. Rafferty, Byron B. Lamont, Kenneth Dods, Meredith M. Fairbanks

Natural Resources Research Articles

No abstract provided.


Smokejumper Obituary: Weinmann, Harold J. "Hal" (North Cascades 1947), National Smokejumper Association Oct 2007

Smokejumper Obituary: Weinmann, Harold J. "Hal" (North Cascades 1947), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


The Fire-Climate Connection, Gail Wells Oct 2007

The Fire-Climate Connection, Gail Wells

Joint Fire Science Program Digests

JFSP-funded research is exploring and quantifying relationships among the large-scale drivers of climate and the occurrence and extent of wildfire in the various regions of the western United States.

A complex of stressors, Quick turnaround, Urgent questions, Weather, Climate, The research, The uncertain future, Help for land managers, A clearer picture


Terrestrial Gastropod Responses To An Ecosystem-Level Calcium Manipulation In A Northern Hardwood Forest, Monica A. Skeldon, Matthew A. Vadeboncoeur, Steven P. Hamburg, Joel D. Blum Oct 2007

Terrestrial Gastropod Responses To An Ecosystem-Level Calcium Manipulation In A Northern Hardwood Forest, Monica A. Skeldon, Matthew A. Vadeboncoeur, Steven P. Hamburg, Joel D. Blum

All Materials

The effects of acid deposition on soil calcium (Ca), and in turn on land snail populations, have been of heightened concern for several decades. We compiled a 10 year record (1997–2006) of gastropod abundance on two small watersheds at the Hubbard Brook Experimental Forest, one of which was treated with a Ca addition in 1999. In years 3–7 post Ca addition, snail abundance in the treated watershed was 73% higher than in the reference area (p < 0.001); there was no significant difference in the 3 years prior to treatment, and no significant difference in slug abundance in any year. We analyzed relationships between snail density and microsite spatial variation in leaf-litter Ca concentration, litter-layer thickness, tree species composition, slope, dead wood, and forest-floor light level. We found that snail abundance was significantly correlated with litter Ca concentration (p < 0.001) and negatively correlated with the importance value of American beech (p = 0.05). Isotopic-tracer analysis indicated that, on average, 76% of Ca in snail shells 5 years post treatment was derived from the added Ca. However, interannual variation in snail numbers indicates that other factors beyond available Ca have a strong influence on snail abundance.


Gordie News, October 2007, West Chester University Of Pennsylvania Oct 2007

Gordie News, October 2007, West Chester University Of Pennsylvania

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.


Community Forestry In Oaxaca: An Assessment Of The Level Of Autonomy In Forest Decision-Making And Its Environmental And Economic Importance, Peter Gill Oct 2007

Community Forestry In Oaxaca: An Assessment Of The Level Of Autonomy In Forest Decision-Making And Its Environmental And Economic Importance, Peter Gill

Independent Study Project (ISP) Collection

No abstract provided.


Smokejumper Obituary: Elliott, Jack B. (Mccall 1947), National Smokejumper Association Sep 2007

Smokejumper Obituary: Elliott, Jack B. (Mccall 1947), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Davis, John T. (North Cascades 1966), National Smokejumper Association Sep 2007

Smokejumper Obituary: Davis, John T. (North Cascades 1966), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Cramer, Robert G. (Missoula 1946), National Smokejumper Association Sep 2007

Smokejumper Obituary: Cramer, Robert G. (Missoula 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Meeting Minutes, September 7th, 2007, National Smokejumper Association Board Of Directors Sep 2007

Meeting Minutes, September 7th, 2007, National Smokejumper Association Board Of Directors

National Smokejumper Association Meeting Minutes

Agenda: NCSB Reunion Update.; Minutes of the Last Meeting.; Treasurer's Report.; Investments.; Life Membership.; Membership Update.; Trails Program.; National Smokejumper Center (NSC) Update.; Boise Reunion Recommendations.; Seeley Lake Ranger District Opportunity.; History Program.; Next year's Meetings.; Potential Reunion Locations.;


Validation And Refinement Of Allometric Equations For Roots Of Northern Hardwoods, Matthew A. Vadeboncoeur, Steven P. Hamburg, Ruth D. Yanai Sep 2007

Validation And Refinement Of Allometric Equations For Roots Of Northern Hardwoods, Matthew A. Vadeboncoeur, Steven P. Hamburg, Ruth D. Yanai

All Materials

The allometric equations developed by Whittaker et al. (1974. Ecol. Monogr. 44: 233–252), at the Hubbard Brook Experimental Forest have been used to estimate biomass and productivity in northern hardwood forest systems for over three decades. Few other species-specific allometric estimates of belowground biomass are available because of the difficulty in collecting the data, and such equations are rarely validated. Using previously unpublished data from Whittaker’s sampling effort, we extended the equations to predict the root crown and lateral root components for the three dominant species of the northern hardwood forest: American beech (Fagus grandifolia Ehrh.), yellow birch (Betula alleghaniensis …


Gordie News, September 2007, West Chester University Of Pennsylvania Sep 2007

Gordie News, September 2007, West Chester University Of Pennsylvania

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.


Working Trees For Wildlife Aug 2007

Working Trees For Wildlife

Working Trees (USDA-NAC)

Sustaining quality wildlife habitat is challenging, especially where agricultural fields offer little plant diversity and in suburban areas where human development has fragmented the landscape.

Increasingly, these areas are managed primarily for people. But, an amazing variety of animals call the same areas home and depend on us to make sure that their needs are met.

Working Trees are trees and shrubs, especially native species, that are in the right place to do a specific job. Whether Working Trees come in the form of a windbreak to enhance crop or livestock production or a riparian forest buffer to filter storm …


Smokejumper Obituary: Kahler, Lee (Ncsb 1946), National Smokejumper Association Aug 2007

Smokejumper Obituary: Kahler, Lee (Ncsb 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Clark, James Robert (Missoula 1964), National Smokejumper Association Aug 2007

Smokejumper Obituary: Clark, James Robert (Missoula 1964), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: French, Thomas L. (Mccall 1975), National Smokejumper Association Aug 2007

Smokejumper Obituary: French, Thomas L. (Mccall 1975), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Whitt, Charles R. "Chuck" (Mccall 1946), National Smokejumper Association Aug 2007

Smokejumper Obituary: Whitt, Charles R. "Chuck" (Mccall 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Gordie News, August 2007, West Chester University Of Pennsylvania Aug 2007

Gordie News, August 2007, West Chester University Of Pennsylvania

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.


Analysis Of Flow Competence In An Alluvial Gravel Bed Stream, Dupuyer Creek, Montana, Andrew C. Whitaker, Donald F. Potts Jul 2007

Analysis Of Flow Competence In An Alluvial Gravel Bed Stream, Dupuyer Creek, Montana, Andrew C. Whitaker, Donald F. Potts

Forest Management Faculty Publications

Critical shear stress and unit discharge flow competence models were tested against coarse bed load data from Dupuyer Creek, Montana, United States. Maximum particle sizes sampled (Dmax) and D-50 to D-90 percentiles in the bed load grain size distribution were well correlated with both shear stress and unit discharge. Bed load grain sizes became coarser with increasing flow strength. For the D-max curve, Shields dimensionless parameter for the surface D-50 was estimated at 0.044, and the exponent for relative particle size (D-i/ D-50) was - 0.59. In the unit discharge criterion the critical flow to entrain the surface D50 was …


Gordie News, July 2007, West Chester University Of Pennsylvania Jul 2007

Gordie News, July 2007, West Chester University Of Pennsylvania

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.


Smokejumper Obituary: Brauer, Fred O. (Missoula 1941), National Smokejumper Association Jun 2007

Smokejumper Obituary: Brauer, Fred O. (Missoula 1941), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Noel, Harry E. (Missoula 1948), National Smokejumper Association Jun 2007

Smokejumper Obituary: Noel, Harry E. (Missoula 1948), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.