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Displaying 11,381 - 11,390 of 65,196 Publications- The Forest Futures Horizon Scanning project depends on volunteer scanners, who often have no experience with scanning. Therefore, it was important to find ways to help volunteers become productive scanners quickly and effectively. This paper describes a method that was developed for identifying a list of useful and relevant scanning sources for the forest futures domain. The table of scanning sources produced by this research is a valuable first step to help new scanners begin to identify signals of change related to forest futures.AuthorsBo Roe, Andy HinesSourceIn: Hines, Andy; Bengston, David N.; Dockry, Michael J., comps. The Forest Futures Horizon Scanning project. Gen. Tech. Rep. NRS-P-187. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 14-21.Year2019
- A vital step in any ongoing horizon scanning process is periodically analyzing the growing database of scanning hits to identify emerging issues, provide insight into possible implications of these issues, and generate foresight. This paper is a preliminary and partial effort to "connect the dots" in the Forest Futures Horizon Scanning system. We examine the descriptive tags associated with each scanning hit as a way to characterize the database, and then describe several themes that have emerged from multiple scanning hits.AuthorsDavid N. Bengston, Nicole Zimmerman, Kurt CallawaySourceIn: Hines, Andy; Bengston, David N.; Dockry, Michael J., comps. The Forest Futures Horizon Scanning project. Gen. Tech. Rep. NRS-P-187. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 22-28.Year2019
- A key purpose of the Forest Futures Horizon Scanning system is to identify weak signals of potential future change and emerging issues for the USDA Forest Service and its stakeholders. An understanding of current issues facing the agency is a prerequisite for identifying weak signals and emerging issues. Scanners who work for the Forest Service generally have this understanding, but scanners from outside typically have little or no familiarity with current agency issues. This paper briefly describes an effort to develop a list of current issues for the Forest Service to be used by scanners...AuthorsKurt Callaway, Andy Hines, David N. BengstonSourceIn: Hines, Andy; Bengston, David N.; Dockry, Michael J., comps. The Forest Futures Horizon Scanning project. Gen. Tech. Rep. NRS-P-187. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 29-33.Year2019
- The Implications Wheel® is a structured brainstorming technique to explore possible consequences of any type of change. This paper describes an exploratory application of the Implications Wheel method to uncover potential consequences of important emerging issues identified through horizon scanning. The issue "growing apathy toward the environment" was explored. We found that even a quick, small-scale application of the method can identify many useful insights: 155 implications were generated, including many scored as highly significant.AuthorsDavid N. Bengston, Leif A. DeVaney, Mike Dockry, Andy Hines, George H. Kubik, Bo Roe, Maria RomeroSourceIn: Hines, Andy; Bengston, David N.; Dockry, Michael J., comps. The Forest Futures Horizon Scanning project. Gen. Tech. Rep. NRS-P-187. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 34-41.Year2019
- Mushroom-forming fungi (Agaricomycetes) have the greatest morphological diversity and complexity of any group of fungi. They have radiated into most niches and fulfil diverse roles in the ecosystem, including wood decomposers, pathogens or mycorrhizal mutualists. Despite the importance of mushroom-forming fungi, large-scale patterns of their evolutionary history are poorly known, in part due to the lack of a comprehensive and dated molecular phylogeny. Here, using multigene and genome-based data, we assemble a 5,284-species phylogenetic tree and infer ages and broad patterns of speciation/e...AuthorsTorda Varga, Krisztina Krizsán, Csenge Földi, Bálint Dima, Marisol Sánchez-García, Santiago Sánchez-Ramírez, Gergely J. Szöllősi, János G. Szarkándi, Viktor Papp, László Albert, William Andreopoulos, Claudio Angelini, Vladimír Antonín, Kerrie W. Barry, Neale L. Bougher, Peter Buchanan, Bart Buyck, Viktória Bense, Pam Catcheside, Mansi Chovatia, Jerry Cooper, Wolfgang Dämon, Dennis Desjardin, Péter Finy, József Geml, Sajeet Haridas, Karen Hughes, Alfredo Justo, Dariusz Karasiński, Ivona Kautmanova, Brigitta Kiss, Sándor Kocsubé, Heikki Kotiranta, Kurt M. LaButti, Bernardo E. Lechner, Kare Liimatainen, Anna Lipzen, Zoltán Lukács, Sirma Mihaltcheva, Louis N. Morgado, Tuula Niskanen, Machiel E. Noordeloos, Robin A. Ohm, Beatriz Ortiz-Santana, Clark Ovrebo, Nikolett Rácz, Robert Riley, Anton Savchenko, Anton Shiryaev, Karl Soop, Viacheslav Spirin, Csilla Szebenyi, Michal Tomšovský, Rodham E. Tulloss, Jessie Uehling, Igor V Grigoriev, Csaba Vágvölgyi, Tamás Papp, Francis M. Martin, Otto Miettinen, David S. Hibbett, László G. NagySourceNature Ecology & EvolutionYear2019
- This resource update provides an overview of forest resources in South Carolina based on an inventory conducted by the U.S. Forest Service, Forest Inventory and Analysis (FIA) program at the Southern Research Station (SRS) in cooperation with the South Carolina Forestry Commission. Estimates are based on field data collected using the FIA annualized sample design and are updated yearly. The estimates presented in this update are for the measurement year 2017 with comparisons made to data reported in 2016 and prior years.AuthorsSamuel G. Lambert, S. Danskin, B.E. RomingerSourceResource Update FS–179Year2019
- Climate change may affect export of essential nutrients to downstream ecosystems in regions that host substantial winter snowpack, yet nutrient uptake is rarely quantified in snow- and ice-covered streams and rivers. To evaluate how nutrient uptake varied year-round in relation to commonly identified drivers of uptake (nutrient concentrations, biological activity, organic matter supply and composition), we measured uptake of ammonium (NH4) and soluble reactive phosphorus (SRP) at 2 to 4 week intervals for 3 years and dissolved organic carbon (DOC) for 2 years in a forested headwater stream...AuthorsAshley A. Coble, Amy M. Marcarelli, Evan KaneKeywordsSourceFreshwater ScienceYear2019
- Forest degradation is common in tropical landscapes, but estimates of the extent and duration of degradation impacts are highly uncertain. In particular, selective logging is a form of forest degradation that alters canopy structure and function, with persistent ecological impacts following forest harvest. In this study, we employed airborne laser scanning in 2012 and 2014 to estimate three-dimensional changes in the forest canopy and understory structure and aboveground biomass following reduced-impact selective logging in a site in Eastern Amazon. Also, we developed a binary classificatio...AuthorsEkena Rangel Pinagé, Michael Keller, Paul Duffy, Marcos Longo, Maiza dos-Santos, Douglas MortonSourceRemote SensingYear2019
- Trees in cities affect air quality and greenhouse gases in numerous ways and consequently affect environmental quality and human health. Urban vegetation can directly and indirectly affect local and regional air quality by altering the urban atmospheric environment. The main ways that urban trees affect air quality and greenhouse gases are through (a) air temperature reduction and other microclimatic effects, (b) removal of air pollutants and atmospheric carbon, (c) emission of volatile organic compounds and emissions associated with tree maintenance, and (d) altering energy use in...AuthorsDavid J. NowakSourceIn: Hall, M.H.P.; Balough, S.B., eds. Understanding Urban Ecology. Springer Nature Switzerland: 175-199.Year2019
- Clouds persistently engulf many tropical mountains at elevations cool enough for clouds to form, creating isolated areas with frequent fog and mist. Under these isolated conditions, thousands of unique species have evolved in what are known as tropical montane cloud forests (TMCF) and páramo. Páramo comprises a set of alpine ecosystems that occur above TMCF from about 11° N to 9° S along the Americas continental divide. TMCF occur on all continents and island chains with tropical climates and mountains and are increasingly threatened by climate and land-use change. Climate change could...AuthorsEileen Helmer, E. A. Gerson, Scott Baggett, Benjamin Bird, Thomas S. Ruzycki, Shannon M. VoggesserSourcePLOS ONEYear2019