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Displaying 951 - 960 of 12,497 Publications
- Terrestrial LiDAR scans (TLS) offer a rich data source for high-fidelity vegetation characterization, addressing the limitations of traditional fuel sampling methods by capturing spatially explicit distributions that have a significant impact on fire behavior. However, large volumes of complex, high resolution data are difficult to use directly in wildland fire models. In this study, we introduce a novel method that employs a voxelization technique to convert high-resolution TLS data into fine-grained reference voxels, which are subsequently aggregated into lower-fidelity fuel cells for...AuthorsAnthony A. Marcozzi, Jesse V. Johnson, Russell A. Parsons, Sarah J. Flanary, Carl A. Seielstad, Jacob Z. DownsSourceFireYear2023
- As climate changes in coming decades, ponderosa pine forest persistence may be increasingly dictated by their regeneration. Sustained regeneration failure has been predicted for forests of the southwestern US (SWUS) even in absence of stand-replacing wildfire, but regeneration in undisturbed and lightly disturbed forests has been studied infrequently and at a limited number of locations. We characterized 77 ponderosa pine sites in 7 SWUS locations, documented regeneration occurring over the past ∼20 years, and utilized gridded meteorological estimates and water balance modeling to determine...AuthorsM.D. Petrie, Robert M. Hubbard, J.B. Bradford, T.E. Kolb, A. Noel, D.R. Schlaepfer, M.A. Bowen, L.R. Fuller, W. Keith MoserKeywordsSourceForest Ecology and Management 545: 121208.Year2023
- ABSTRACT Issues related to diversity, equity, and inclusion are becoming increasingly important to park and protected area managers. Recently, several Executive Orders have established policies and priorities for steering public lands to better serve the diversity of the US public. Certain groups, compared to the US population at large, are underrepresented as visitors to parks and protected areas in the US, including BIPOC communities (Black, Indigenous, and other People of Color), women, people with disabilities, veterans, people with lower socioeconomic status, and the elderly. This...AuthorsElena R. Thomas, Jaclyn Rushing, William L. Rice, Jennifer M. Thomsen, Chris A. ArmatasSourceInternational Journal of Wilderness. 29(2): 127-147.Year2023
- US federal land management agencies serve the American people and work to ensure that all Americans connect with and value wilderness. As a result, wilderness managers may prioritize diversity, equity, and inclusion (DEI), though may lack wilderness-specific tools and resources to foster commitments to DEI. As agencies and organizations turn to virtual resources to share information - what we refer to as toolboxes - questions remain about their utility and potential to impact DEI outcomes in wilderness. This article describes the process and results of five virtual focus group discussions...AuthorsLauren Redmore, Kim Fox-Middleton, Keren-Happuch Crum, Margaret Gregory, Cassidy Motahari, Mary Powers, Ruby Sainz Armendariz, Amanda Grace Santos, Lea Schram von HauptKeywordsSourceInternational Journal of Wilderness. 29(2): 82-102.Year2023
- Increasing fire severity and warmer, drier postfire conditions are making forests in the western United States (West) vulnerable to ecological transformation. Yet, the relative importance of and interactions between these drivers of forest change remain unresolved, particularly over upcoming decades. Here, we assess how the interactive impacts of changing climate and wildfire activity influenced conifer regeneration after 334 wildfires, using a dataset of postfire conifer regeneration from 10,230 field plots. Our findings highlight declining regeneration capacity across the West over the...AuthorsKimberley T. Davis, Marcos D. Robles, Kerry B. Kemp, Philip E. Higuera, Teresa Chapman, Kerry L. Metlen, Jamie L. Peeler, Kyle C. Rodman, Travis Woolley, Robert N. Addington, Brian J. Buma, Alina Cansler, Michael J. Case, Brandon M. Collins, Jonathan D. Coop, Solomon Z. Dobrowski, Nathan S. Gill, Collin Haffey, Lucas B. Harris, Brian J. Harvey, Ryan D. Haugo, Matthew D. Hurteau, Dominik Kulakowski, Caitlin E. Littlefield, Lisa A. McCauley, Nicholas Povak, Kristen L. Shive, Edward Smith, Jens Stevens, Camille S. Stevens-Rumann, Alan H. Taylor, Alan J. Tepley, Derek J. N. Young, Robert A. Andrus, Michael A. Battaglia, Julia K. Berkey, Sebastian Busby, Amanda R. Carlson, Marin E. Chambers, Erich Dodson, Daniel C. Donato, William M. Downing, Paula J. Fornwalt, Joshua S. Halofsky, Ashley Hoffman, Andrés Holz, Jose Iniguez, Meg A. Krawchuk, Mark R. Kreider, Andrew J. Larson, Garrett W. Meigs, John Paul Roccaforte, Monica T. Rother, Hugh Safford, Michael Schaedel, Jason S. Sibold, Megan P. Singleton, Monica G. Turner, Alexandra K. Urza, Kyra D. Clark-Wolf, Larissa Yocom, Joseph B. Fontaine, John L. CampbellKeywordsSourcePNAS. 120(11): e2208120120.Year2023
- We developed spatial Bayesian hierarchical models to assess potential climate change impacts on suitable habitat for five important tree species in the Pacific northwestern United States (California, Oregon, and Washington). Individual-species models were fit with presence-absence data from forest inventory field plots and spatial relationships were specified through a conditional autoregressive model. This modeling approach allowed us to visualize uncertainty in response curves, map current and future prediction uncertainty, and provide interval estimates for change. Upward elevational or...AuthorsKarin Kralicek, Jay M. Ver Hoef, Tara M. Barrett, Hailemariam TemesgenKeywordsSourceEcosphere. 14(3): e4449.Year2023
- 1. Dominance often indicates one or a few species being best suited for resource capture and retention in a given environment. Press perturbations that change availability of limiting resources can restructure competitive hierarchies, allowing new species to capture or retain resources and leaving once dominant species fated to decline. However, dominant species may maintain high abundances even when their new environments no longer favour them due to stochastic processes associated with their high abundance, impeding deterministic processes that would otherwise diminish them.2. Here, we...AuthorsPeter A. Wilfahrt, Eric W. Seabloom, Jonathan D. Bakker, Lori Biederman, Miguel N. Bugalho, Marc W. Cadotte, Maria C. Caldeira, Jane A. Catford, Qingqing Chen, Ian Donohue, Anne Ebeling, Nico Eisenhauer, Sylvia Haider, Robert W. Heckman, Anke Jentsch, Sally E. Koerner, Kimberly J. Komatsu, Ramesh Laungani, Andrew MacDougall, Jason P. Martina, Holly Martinson, Joslin L. Moore, Yujie Niu, Timothy Ohlert, Harry Olde Venterink, Devyn Orr, Pablo Peri, Edwin Pos, Jodi Price, Xavier Raynaud, Zhengwei Ren, Christiane Roscher, Nicholas G. Smith, Carly J. Stevens, Lauren L. Sullivan, Michelle Tedder, Pedro M. Tognetti, Ciska Veen, George Wheeler, Alyssa L. Young, Hillary Young, Elizabeth T. BorerKeywordsSourceJournal of Ecology. 111: 2472-2482.Year2023
- The Great Basin floristic region spans three Level III ecoregions (Central Basin and Range, Northern Basin and Range, and Snake River Plain) and makes up a large portion of the Intermountain West of the United States. Over 75% of the Great Basin is publicly owned and managed by the US federal land management agencies, with state agencies also managing large areas. The primary human uses of public lands are grazing and recreation, with mining and oil and gas development found in some locations. The Great Basin has a range of mostly arid and semi-arid ecosystems from salt desert through...AuthorsFrancis F. Kilkenny, Jeffrey E. Ott, Sarah C. Barga, Jessica Irwin, Kimberly Rizkowsky, Nyika Campbell, Bryce A. Richardson, Elizabeth R. Milano, Corey GuckerKeywordsSourceBoise, ID: U.S. Department of Agriculture, Rocky Mountain Research Station. 53 p.Year2023
- The risk of destructive wildfire on fire-prone landscapes with excessive fuel buildup has prompted the use of fuel reduction treatments to protect valued resources from wildfire damage. The question of how to maximize the effectiveness of fuel reduction treatments at landscape scales is important because treating an entire landscape may be undesirable or unfeasible. We reviewed 86 simulation studies that examined landscape-scale fuel reduction treatment effectiveness for landscapes of the USA or Canada. Each of these studies tested effects of fuel reduction treatments on wildfire through...AuthorsJeffrey E. Ott, Francis F. Kilkenny, Terrie B. JainKeywordsSourceFire Ecology. 19: 10.Year2023
- By all measures, wildfires in the western United States are becoming more extreme. Fires are growing larger and burning more intensely, and suppression costs are spiraling upward. Maximizing the effectiveness of fuel treatments at the landscape scale is key given limited resources and the inability to treat all areas likely to burn in a wildfire.AuthorsTerrie B. Jain, Sharon M. Hood, Shawn McKinney, Jeffrey E. Ott, Alexandra K. Urza, Morgan Varner, Ilana Abrahamson, Nathaniel Anderson, Michael A. Battaglia, Jeanne C. Chambers, Brice Hanberry, Francis F. Kilkenny, Joseph O’BrienKeywordsSourceScience You Can Use Bulletin, Issue 59. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 11 p.Year2023