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- Archaeological attributes important for determining cultural affiliation, site age, or artifact origin can be damaged or destroyed by wildfires. Satellite-derived fire severity products are used in post-fire rapid response to prioritize and guide stabilization and preservation activities, but their ability to predict archaeological fire effects has not yet been tested. We compared the severity of fire from Burned Area Reflectance Classification (BARC) maps with ground-based observations of fire severity (“archaeological fire severity”) and fire-induced changes to architecture, features, or...AuthorsRachel A. Loehman, Megan M. Friggens, Connie I. Constan, Anastasia SteffenKeywordsSourceFire EcologyYear2026
- Climate-driven alterations to fire regimes challenges forest management and restoration in the western United States, where increased wildfire severity threatens ecosystem integrity and resilience. In this study, we demonstrate the application of the FireCLIME (Fire-Climate-Landscape Interactions in Montane Ecosystems) Vulnerability Assessment (VA) as a decision-support tool for evaluating management actions, including restoration strategies, under climate uncertainty. Through collaborative workshops with USDA Forest Service managers, we assessed three project areas in two national...AuthorsMegan M. Friggens, Rachel A. Loehman, Stephanie Mueller, William Flatley, Andrea ThodeKeywordsSourceEcological RestorationYear2026
- Land cover data are commonly used to model the terrestrial carbon (C) sink, yet these data have wide margins of error that significantly alter estimates of global C storage. Here we demonstrate this data vulnerability in grasslands, which are critical to C cycling but whose estimated distribution has varied by >50 million km 2 (3.5–42% of the Earth’s terrestrial surface). Comparing multiple high-resolution land cover products with expertly annotated grassland data from six continents, we show sources of mapping error and discuss C implications based on 2023 United Nations (UN) FAO estimates...AuthorsA. S. MacDougall, B. Vanzant, J. Sulik, S. Bagchi, D. Naidu, T. O. Muraina, E. W. Seabloom, E. T. Borer, P. Wilfahrt, I. Slette, J. L. Hierro, Dean E. Pearson, M. Abedi, M. Akasaka, J. Alberti, A. Aleksanyan, A. A. Amisu, T. M. Anderson, C. A. Arnillas, M. Ayer, J. D. Bakker, S. Basant, S. Basto, L. Biederman, K. J. Bloodworth, F. Boscutti, E. H. Boughton, C. M. Bruschetti, H. L. Buckley, Y. M. Buckley, M. N. Bugalho, M. C. Caldeira, G. Campetella, N. Cannone, M. Carbognani, C. Carbutt, M. A. Carniello, M. Cervellini, T. Chaudhary, Q. Chen, A. T. Clark, S. Cousins, M. Dalle Fratte, N. J. Day, B. Deák, J. Dietrich, A. Dixon, N. Eisenhauer, K. J. Elgersma, O. Eren, A. Eskelinen, C. Estrada, P. A. Fay, G. Fayvush, K. C. Flynn, D. García Meza, D. Gargano, L. Gherardi, N. T. Girkin, L. González, P. Graff, L. W. C. Hagenberg, A. H. Halbritter, N. A. Havrilchak, N. Herdoiza, E. Hersch-Green, K. Hopping, A. Jentsch, S. O. Jimoh, J. Kerby, K. Kirkman, J. M. H. Knops, S. E. Koerner, A. Koltz, K. J. Komatsu, B. I. Koura, S. Kruse, L. Laanisto, L. S. Lannes, W. Li, M. Liang, A. Lkhagva, L. López-Olmedo, P. Lorenzo, C. J. Lortie, A. Loydi, W. Luo, P. Macek, F. Malfasi, P. Mariotte, J. P. Martina, A. Martínez-Blancas, H. Martinson, C. Martorell, J. A. Meave, S. Medina-Villar, K. Z. Mganga, J. Monsimet, A. N. Nerlekar, S. Niu, T. Ohlert, I. Oliveras Menor, G. R. Oñatibia, Yvette K. Ortega, B. Osborne, S. Palpurina, J. Pascual, S. C. Pennings, E. Pérez-García, P. L. Peri, M. Petit Bon, A. Petraglia, F. Pijcke, S. M. Prober, R. E. Quiroga, J. I. Ramirez, S. Reed, B. H. P. Rosado, C. Roscher, D. W. Rowley, I. Sereda, D. M. Small, N. G. Smith, Y. Song, C. Stevens, L. E. Suarez Jimenez, M. te Beest, M. Tedder, R. S. Terry, K. S. Thornton, D. Tian, G. Titcomb, O. Valkó, G. F. ‘Ciska’ Veen, R. Virtanen, E. A. R. Welti, G. R. Wheeler, A. A. Wolf, P. Wolff, A. L. Young, H. S. Young, L. H. Zeglin, K. Zhu, S. Zong, M. B. SiewertKeywordsSourceNature Ecology and EvolutionYear2026
- In this study, we used coniferous and non-coniferous hosts to assess the pathogenicity of a Fusarium annulatum isolate derived from southwestern white pine ( Pinus strobiformis), along with F. commune isolates derived from coniferous and herbaceous, non-conifer hosts. All isolates of both Fusarium spp. were found to be pathogenic to conifer hosts. For the tested non-coniferous hosts, F. commune isolates were found to be pathogenic to both rice and tomato, whereas F. annulatum was pathogenic to rice and potentially less aggressive on tomato. To investigate the molecular basis of pathogenicit...AuthorsJohn T. Dobbs, Mee-Sook Kim, Ned B. Klopfenstein, Jane E. StewartKeywordsSourcePhytopathologyYear2026
- Understory plants are an integral part of forests, serving a variety of functions that help maintain healthy eco-systems. The structure and composition of the understory are influenced by numerous biotic and abiotic factors, with light being critical. The introduction of the pathogen Cronartium ribicola, which causes white pine blister rust, into North America in the early 20th century led to the near total loss of western white pine (Pinus mon-ticola) from moist forests of the Northern Rockies. Management is reintroducing blister rust-resistant western white pine across the landscape, but...AuthorsAndrew S. Nelson, Terrie B. Jain, Jason R. Reinhardt, Eva K. Strand, Nicole Mutchler, John C. ByrneKeywordsSourceForest EcosystemsYear2026
- Artificial intelligence (AI), cloud computing, robotics, automation, and remote sensing technologies are all contributing to digital transformation in forestry. Improving on low-accuracy Global Navigation Satellite Systems (GNSS) positioning affected by multipath error and interception under forest canopies is critical for integrating smart and digital technologies into equipment in forest operations. In an era where lidar-derived individual tree locations are now increasingly available in digital forest inventories, a possible alternative approach to positioning resources such as people...AuthorsMichael P. Salerno, Robert F. Keefe, Andrew T. Hudak, Ryer M. BeckerKeywordsSourceForestsYear2026
- White pine blister rust (WPBR) is a disease on North American five‐needle white pine trees caused by the non‐native fungal pathogen Cronartium ribicola that is causing widespread decline and mortality of Pinus flexilis (limber pine) in high elevation western forests. Elucidating the infection process is important for developing solutions for managing the disease. As an obligate biotroph, C. ribicola infects pine needles through stomatal pores and parasitizes needle tissue before growing into the stem, causing stem cankers. Pinus flexilis retains 8–9 years of needles on shoots, and it...AuthorsAshley E. Miller, Anna W. Schoettle, Jorge R. Ibarra Caballero, Tori Teegardin, Jane E. StewartKeywordsSourceForest PathologyYear2026
- Conservation assessments of imperiled species require information on population structure, abundance, and connectivity which benefit from integrated demographic and genetic data. Humboldt martens ( Martes caurina humboldtensis ) are a federally threatened subspecies of Pacific marten ( Martes caurina ) whose conservation has been hindered by knowledge gaps and data deficiencies due to rarity and elusiveness. Here, we assessed population structure and genetic viability of Humboldt martens by exploring synergies between reduced representation sequencing and noninvasive genetic approaches. We...AuthorsMargaret A. Hallerud, Katie Moriarty, Kristine L. Pilgrim, Cate Quinn, Charlotte E. Eriksson, Michael K. Schwartz, Taal LeviKeywordsSourceEvolutionary ApplicationsYear2026
- Intensively monitored watersheds provide long-term data sets for evaluating land management activities and can also identify causal mechanisms for population-level changes in aquatic species including life history diversity in salmonids. The influence of dam removal (ecosystem restoration), conservation hatchery practices, and an in-river fishing moratorium (i.e., management actions) on life history diversity in salmonids has not been fully evaluated. We used scale and genetic samples collected during intensive monitoring following these management actions in the Elwha River to determine...AuthorsRoger J. Peters, George R. Pess, Keith P. Denton, Andrew M. Claiborne, John R. McMillan, Alexandra Fraik, Martin C. Liermann, Jeffery R. Johnson, Michael L. McHenry, Krista M. Nichols, Daniel K. Pierce, Todd R. BennettKeywordsSourceFrontiers in Ecology and EvolutionYear2026
- High climatic variability and livestock grazing are ubiquitous across greater sage‐grouse ( Centrocercus urophasianis ) range and may influence the population dynamics of this imperiled rangeland species. We examined how annual variability in climate, vegetation productivity, grazing intensity, and conservation grazing program enrollment influenced a greater sage‐grouse population in a 1500‐km 2 rangeland landscape in central Montana (2002–2022). Using a Gompertz density‐dependent population model, we found that winter temperatures positively influenced annual population dynamics (standardi...AuthorsDavid Messmer, Kaitlyn Reintsma, Lorelle Berkeley, Jennifer Helm, Mark Szczypinski, Victoria Dreitz, Justin GudeKeywordsSourceConservation Science and PracticeYear2026