Search Results - "Covington, W. Wallace"

Ecological Restoration Treatments Increase Butterfly Richness and Abundance: Mechanisms of Response by Waltz, Amy E. M., Wallace Covington, W.

“…Few ecosystem restoration studies evaluate whether arthropods are important components of ecosystem recovery. We tested the hypothesis that ponderosa pine…”
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Recommendations for Integrating Restoration Ecology and Conservation Biology in Ponderosa Pine Forests of the Southwestern United States by Noss, Reed F., Beier, Paul, Wallace Covington, W., Edward Grumbine, R., Lindenmayer, David B., Prather, John W., Schmiegelow, Fiona, Sisk, Thomas D., Vosick, Diane J.

“…Over the past century, ponderosa pine–dominated landscapes of the southwestern United States have been altered by human activities such as grazing, timber…”
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Nonnative species influence vegetative response to ecological restoration: Two forests with divergent restoration outcomes by McGlone, Christopher M., Stoddard, Michael T., Springer, Judith D., Daniels, Mark L., Fulé, Peter Z., Wallace Covington, W.

“…► We compared two ponderosa pine forest restoration projects in northern Arizona. ► Restoration consisted of tree thinning and prescribed fire. ► Understory…”
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The hierarchy of predictability in ecological restoration: are vegetation structure and functional diversity more predictable than community composition? by Laughlin, Daniel C., Strahan, Robert T., Moore, Margaret M., Fulé, Peter Z., Huffman, David W., Covington, W. Wallace

“…1. Predicting restoration outcomes requires an understanding of the natural variability of ecosystem properties. A hierarchy of predictability has been…”
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Diameter caps for thinning southwestern ponderosa pine forests: Viewpoints, effects, and tradeoffs by Abella, S.R, Fule, P.Z, Covington, W.W

“…Abstract Upper size limits of trees allowed to be cut, termed diameter caps, have resulted in polarization, litigation, and delays and alterations to thinning…”
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Forest restoration treatments increased growth and did not change survival of ponderosa pines in severe drought, Arizona by Fulé, Peter Z., Sánchez Meador, Andrew J., Moore, Margaret M., Covington, W. Wallace, Kolb, Thomas E., Huffman, David W., Normandin, Donald P., Roccaforte, John Paul

“…We report on survival and growth of ponderosa pines (Pinus ponderosa Douglas ex P. Lawson & C. Lawson) 2 decades after forest restoration treatments in the G…”
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Slow carbon and nutrient accumulation in trees established following fire exclusion in the southwestern United States by Kaye, Jason P., Kaye, Margot W., Hart, Stephen C., Covington, W. Wallace, Fulé, Peter Z.

“…Increasing tree density that followed fire exclusion after the 1880s in the southwestern United States may have also altered nutrient cycles and led to a…”
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Diverse responses across soil parent materials during ecological restoration by Abella, Scott R, Crouse, Joseph E, Covington, W. Wallace, Springer, Judith D

“…A major challenge to advancing the science and practice of ecological restoration is working across large landscapes containing diverse sites that may respond…”
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The Fire and Tree Mortality Database, for empirical modeling of individual tree mortality after fire by Cansler, C. Alina, Hood, Sharon M., Varner, J. Morgan, van Mantgem, Phillip J., Agne, Michelle C., Andrus, Robert A., Ayres, Matthew P., Ayres, Bruce D., Bakker, Jonathan D., Battaglia, Michael A., Bentz, Barbara J., Breece, Carolyn R., Brown, James K., Cluck, Daniel R., Coleman, Tom W., Corace, R. Gregory, Covington, W. Wallace, Cram, Douglas S., Cronan, James B., Crouse, Joseph E., Das, Adrian J., Davis, Ryan S., Dickinson, Darci M., Fitzgerald, Stephen A., Fulé, Peter Z., Ganio, Lisa M., Grayson, Lindsay M., Halpern, Charles B., Hanula, Jim L., Harvey, Brian J., Kevin Hiers, J., Huffman, David W., Keifer, MaryBeth, Keyser, Tara L., Kobziar, Leda N., Kolb, Thomas E., Kolden, Crystal A., Kopper, Karen E., Kreitler, Jason R., Kreye, Jesse K., Latimer, Andrew M., Lerch, Andrew P., Lombardero, Maria J., McDaniel, Virginia L., McHugh, Charles W., McMillin, Joel D., Moghaddas, Jason J., O’Brien, Joseph J., Perrakis, Daniel D. B., Peterson, David W., Prichard, Susan J., Progar, Robert A., Raffa, Kenneth F., Reinhardt, Elizabeth D., Restaino, Joseph C., Roccaforte, John P., Rogers, Brendan M., Ryan, Kevin C., Safford, Hugh D., Santoro, Alyson E., Shearman, Timothy M., Shumate, Alice M., Sieg, Carolyn H., Smith, Sheri L., Smith, Rebecca J., Stephenson, Nathan L., Stuever, Mary, Stevens, Jens T., Stoddard, Michael T., Thies, Walter G., Vaillant, Nicole M., Weiss, Shelby A., Westlind, Douglas J., Woolley, Travis J., Wright, Micah C.

“…Wildland fires have a multitude of ecological effects in forests, woodlands, and savannas across the globe. A major focus of past research has been on tree…”
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Relationships of exotic plant communities with native vegetation, environmental factors, disturbance, and landscape ecosystems of Pinus ponderosa forests, USA by Abella, Scott R., Cayenne Engel, E., Springer, Judith D., Wallace Covington, W.

“…► Exotic plant invasions often threaten indigenous forest ecosystems. ► We examined exotic plant communities on a southwestern USA forest landscape. ► Native…”
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Reference Conditions and Ecological Restoration: A Southwestern Ponderosa Pine Perspective by Moore, Margaret M., Covington, W. Wallace, Fule, Peter Z.

“…Ecological restoration is the process of reestablishing the structure and function of native ecosystems and developing mutually beneficial human-wildland…”
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Spatial patterns of Mexican pine-oak forests under different recent fire regimes by Fule, P.Z. (Northern Arizona Univ., Flagstaff, AZ (USA). School of Forestry), Covington, W.W

“…Patterns of spatial arrangement, tree density, and species composition were compared in three unharvested pine-oak forests under different recent fire regimes:…”
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Comparison of historical and contemporary forest structure and composition on permanent plots in southwestern ponderosa pine forests by Moore, M.M, Huffman, D.W, Fule, P.Z, Covington, W.W, Crouse, J.E

“…We compared historical (1909-1913) and contemporary (1997-1999) forest structure and composition on 15 permanent plots in ponderosa pine (Pinus ponderosa…”
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Initial carbon, nitrogen, and phosphorus fluxes following ponderosa pine restoration treatments by Kaye, Jason P., Hart, Stephen C., Fulé, Peter Z., Covington, W. Wallace, Moore, Margaret M., Kaye, Margot W.

“…Southwestern ponderosa pine forests were dramatically altered by fire regime disruption that accompanied Euro-American settlement in the 1800s. Major changes…”
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Vegetation-Environment Relationships and Ecological Species Groups of an Arizona Pinus ponderosa Landscape, USA by Abella, Scott R., Covington, W. Wallace

“…Pinus ponderosa forests occupy numerous topographic and soil complexes across vast areas of the south-western United States, yet few data exist on species…”
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Small mammal community maintains stability through compensatory dynamics after restoration of a ponderosa pine forest by Kalies, Elizabeth L, Covington, W. Wallace

“…Ecosystem stability has been of increasing interest in the past several decades as it helps predict the consequences of anthropogenic disturbances on…”
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Mixed-severity fire regime in a high-elevation forest of Grand Canyon, Arizona, USA by FULE, Peter Z, CROUSE, Joseph E, HEINLEIN, Thomas A, MOORE, Margaret M, COVINGTON, W. Wallace, VERKAMP, Greg

“…Fire regime characteristics of high-elevation forests on the North Rim of the Grand Canyon, Arizona, were reconstructed from fire scar analysis, remote…”
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Changes in forest floor organic matter and nutrient content following clear cutting in northern hardwoods by Covington, W. Wallace

“…A secondary succession sequence of 14 northern hardwoods stands was sampled for forest floor organic matter and nutrient content. During the first 15 yr…”
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Posttreatment Tree Mortality After Forest Ecological Restoration, Arizona, United States by Fulé, Peter Z, Roccaforte, John P, Covington, W. Wallace

“…Pine-oak forests are of high ecological importance worldwide, but many are threatened by uncharacteristically severe wildfire. Forest restoration treatments,…”
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Assessing Targets for the Restoration of Herbaceous Vegetation in Ponderosa Pine Forests by Laughlin, Daniel C., Moore, Margaret M., Bakker, Jonathan D., Casey, Cheryl A., Springer, Judith D., Fulé, Peter Z., Covington, W. Wallace

“…A restoration project is considered a success when the initial target is met, but many targets are plausible. We evaluated the success of a restoration project…”
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