Treesearch
Displaying 9,481 - 9,490 of 65,202 Publications- Using U.S. Department of Agriculture Forest Service Forest Inventory and Analysis (FIA) data, we examined changes in land use, ownership, parcel size, and parcel level in the U.S. South. Over a nominal 10-year period (2001 to 2011), 93.8 percent of the acreage did not change land use. Forest was the most common type and there was a small net gain of forested acreage. Of the forested acreage, 85.4 percent did not change ownership type. Families were the most common ownership type, and there was a small net loss of family-owned lands—primarily to corporate ownerships. Of family-owned forest...AuthorsJesse Caputo, Brett J. Butler, Thomas Brandeis, Kurt RiittersSourcee-Research Paper-63. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station.Year2020
- Aim: Previous work demonstrated the global variability of synchrony in tree growth within populations, that is, the covariance of the year-to-year variability in growth of individual neighbouring trees. However, there is a lack of knowledge about the causes of this variability and its trajectories through time. Here, we examine whether climate can explain variation in within-population synchrony (WPS) across space but also through time and we develop models capable of explaining this variation. These models can be applied to the global tree cover under current and future climate change...AuthorsErnesto Tejedor, Roberto Serrano‐Notivoli, Martin Luis, Miguel Angel Saz, Claudia Hartl, Scott St. George, Ulf Büntgen, Andrew M. Liebhold, Mathias Vuille, Jan EsperKeywordsSourceGlobal Ecology and BiogeographyYear2020
- Although they are the foundations of most efforts to conserve biodiversity, protected areas in the United States have, historically, not always been located in the most important areas to accomplish this goal. We investigated the overlap between suitable habitat for wildlife species of conservation concern and the location of public and private highly protected areas to assess the degree to which current highly protected areas are providing fine-scale habitat for wildlife species of conservation concern, to explore the relationship between the size of total suitable habitat of a species...AuthorsMatthew S. Dietz, R. Travis Belote, Josh Gage, Beth HahnKeywordsSourceBiological Conservation. 248: 108646.Year2020
The Fire and Tree Mortality Database, for empirical modeling of individual tree mortality after fire
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 mortality from fire, as trees provide a vast range of biological services. We assembled a database of individual-tree records from prescribed fires and wildfires in the United States. The Fire and Tree Mortality (FTM) database includes records from 164,293 individual trees with records of fire injury (crown scorch, bole char, etc.), tree diameter, and either mortality or top-kill up to ten years post-fire. Data span 142 species and 62...AuthorsC. Alina Cansler, Sharon M. Hood, J. Morgan Varner, Phillip J. van Mantgem, Michelle C. Agne, Robert A. Andrus, Matthew P. Ayres, Bruce D. Ayres, Jonathan D. Bakker, Michael A. Battaglia, Barbara J. Bentz, Carolyn R. Breece, James Brown, Daniel R. Cluck, Tom Coleman, R. Gregory Corace, W. Wallace Covington, Douglas S. Cram, James Cronan, Joseph E. Crouse, Adrian J. Das, Ryan S. Davis, Darci M. Dickinson, Stephen A. Fitzgerald, Peter Z. Fulé, Lisa M. Ganio, Lindsay M. Grayson, Charles B. Halpern, Jim L. Hanula, Brian J. Harvey, J. Kevin Hiers, David W. Huffman, MaryBeth Keifer, Tara L. Keyser, Leda N. Kobziar, Thomas E. Kolb, Crystal A. Kolden, Karen E. Kopper, Jason R. Kreitler, Jesse K. Kreye, Andrew M. Latimer, Andrew Lerch, Maria J. Lombardero, Virginia McDaniel, Charles W. McHugh, Joel D. McMillin, Jason J. Moghaddas, Joseph J. O’Brien, Daniel D. B. Perrakis, David W. Peterson, Susan J. Prichard, Robert Progar, Kenneth F. Raffa, Elizabeth Reinhardt, Joseph Restaino, John P. Roccaforte, Brendan M. Rogers, Kevin C. Ryan, Hugh D. Safford, Alyson E. Santoro, Timothy M. Shearman, Alice M. Shumate, Carolyn H. Sieg, Sheri L. Smith, Rebecca J. Smith, Nathan L. Stephenson, Mary Stuever, Jens Stevens, Michael T. Stoddard, Walter G. Thies, Nicole M. Vaillant, Shelby A. Weiss, Douglas J. Westlind, Travis J. Woolley, Micah C. WrightSource2020. The Fire and Tree Mortality Database, for empirical modeling of individual tree mortality after fire. Scientific Data. 7: 194.Year2020- Understanding the detailed physical and social context surrounding wildfire and WUI fire fatalities is crucial in terms of ensuring effective emergency management policy and practice. Studies of fatalities over prolonged periods ensure changing trends in vulnerabilities and exposure are identified (e.g., Haynes et al. 2010; Molina- Terrén et al. 2019). There have been a number of catastrophic fires leading to high numbers of fatalities in recent years, including the 2009 Victorian bushfires in Australia, with 173 fatalities (Teague et al. 2010); the 2017 Portugal forest fires, with 66...AuthorsKatharine Haynes, Karen C. Short, Gavriil Xanthopoulos, Domingos Viegas, Luis Mario Ribeiro, Raphaele BlanchiKeywordsSourceIn: Manzello, Samuel L., ed. Encyclopedia of Wildfires and Wildland-Urban Interface (WUI) Fires. Cham, Switzerland: Springer. 16 p.Year2020
- Monte Carlo simulations using wildland fire spread models have been conducted to produce numerical estimates of fire likelihood, project potential fire effects, and produce event sets of realistic wildfires (Parisien et al., 2019). The application of these methods has greatly expanded over the last few decades as a result of increased computation capabilities, available data, and our fundamental understanding of landscape fire dynamics. In their recently published article, Beverly and McLoughlin (2019) attempt to assess the accuracy of fire likelihood outputs (hereafter “burn probability”...AuthorsMarc-Andre Parisien, Alan Ager, Ana M. Barros, Denyse Dawe, Sandy Erni, Mark A. Finney, Charles W. McHugh, Carol L. Miller, Sean A. Parks, Karin Riley, Karen C. Short, Christopher A. Stockdale, Xianli Wang, Ellen WhitmanSourceForest Ecology and Management. 460: 117698.Year2020
- The complex topography, climate, and geological history of Western North America have shaped contemporary patterns of biodiversity and species distributions in the region. Pacific martens (Martes caurina) are distributed along the northern Pacific Coast of North America with disjunct populations found throughout the Northwestern Forested Mountains and Marine West Coast Forest ecoregions of the West Coast. Martes in this region have been classified into subspecies; however, the subspecific designation has been extensively debated. In this study, we use genomic data to delineate conservation...AuthorsMichael K. Schwartz, Ashley Walters, Kristine L. Pilgrim, Katie Moriarty, K. M. Slauson, Bill Zielinski, Keith B. Aubry, B. N. Sacks, Katherine Zarn, C. B. Quinn, Michael K. YoungKeywordsSourceJournal of Heredity. 2020: 169-181.Year2020
- Understanding the driving mechanisms behind existing patterns of vegetation hydraulic traits and community trait diversity is critical for advancing predictions of the terrestrial carbon cycle because hydraulic traits affect both ecosystem and Earth system responses to changing water availability. Here, we leverage an extensive trait database and a long-term continental forest plot network to map changes in community trait distributions and quantify “trait velocities” (the rate of change in community-weighted traits) for different regions and different forest types across the United States...AuthorsAnna T. Trugman, Leander D. L. Anderegg, John D. Shaw, William R. L. AndereggSourceProceedings of the National Academy of Sciences. 117(15): 8532-8538.Year2020
- Before weed biocontrol insects are transported and released in a new area, they are commonly collected into small paper containers, chilled, and kept under dark conditions. This process can be termed a pre-release protocol. The influence of a prerelease protocol on establishment success of a gregarious biological control agent was assessed using the northern tamarisk beetle, Diorhabda carinulata (Desbrochers), and its exotic, invasive host plant saltcedar (Tamarix spp.). Pre-release protocol impacts on aggregation pheromone production by D. carinulata were characterized under controlled...AuthorsAlexander M. Gaffke, Sharlene E. Sing, Tom L. Dudley, Daniel W. Bean, Justin A. Russak, Agenor Mafra-Neto, Robert K. D. Peterson, David K. WeaverSourceJournal of Chemical Ecology. doi: 10.1007/s10886-020-01176-4.Year2020
- Nature prescription programs have emerged to address the high burden of chronic disease and increasingly sedentary and screen-based lifestyles. This study examines the base of evidence regarding such programs. We conducted a narrative review of published literature using four electronic databases. We included case studies, research design articles, and empirical studies that discussed any type of outdoor exposure or activities initiated by a health-care provider from an outpatient clinic. We examined articles for information on target populations, health outcomes, and structural and...AuthorsMichelle Kondo, Kehinde O. Oyekanmi, Allison Gibson, Eugenia C. South, Jason Bocarro, J. Aaron. HippSourceInternational Journal of Environmental Research and Public HealthYear2020