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Displaying 1 - 10 of 62,935 Publications- Advance preparation for wildfire is essential for safe evacuation, and fire weather warnings can alert people to times of high fire danger when additional actions are recommended. However, little is known about the level of preparation of most wildland-urban interface (WUI) community residents, and potential influences on them carrying out preparatory actions. This study assessed the personal preparation undertaken by residents of California, United States, communities, including understanding of and response to fire weather warnings issued by the National Weather Service. We used a mixed-mode...AuthorsAlyssa Thomas, Emily E. Schlickman, Joseph E. Trujillo-FalcónKeywordsSourceInternational Journal of Disaster Risk Reduction. 120: 105396.Year2025
- Stream-dwelling salmonids in the low-latitude and -altitude margins of their range are particularly threatened by climate change. However, they possess a variety of evolutionary, plastic, and behavioural mechanisms that provide resistance against rapid changes in their environment. Behavioural plasticity can be important under rapid environmental change because it is relatively fast and flexible. In particular, salmonids can exhibit flexible diel activity patterns in response to new environmental conditions, but the consequences of this capability for long-term population persistence in the fa...AuthorsDaniel Ayllón, Steven F. Railsback, Bret C. Harvey, Graciela G. Nicola, Benigno Elvira, Ana AlmodóvarKeywordsSourceIndividual-based Ecology. 1: e139560.Year2025
Representing mortality risk in mechanistic models
Formally Refereed
Mortality risk is a critical and complex component of individual fitness and individual-based ecology, especially when risk-avoidance behaviors are considered. Organisms are subject to multiple kinds of risk that can vary with habitat, time, individual state, individual activity and behavior, and population status. Yet risk is often represented very simply in models and there is little literature on practical ways to model its variation. In our experience, desirable characteristics of risk models include: (a) survival probability can vary with multiple variables of individuals, habitat, and ot...AuthorsSteven F. Railsback, Bret C. HarveySourceIndividual-based Ecology. 1: e141005.Year2025- This research note describes the development of a pre-assessment survey of urban Black, Indigenous, and People of Color (BIPOC) youth participating in the Outward Bound Adventures (OBA) Environmental Studies Expeditions (ESE) program. The objective of the pre-assessment was to understand their baseline perceptions of nature and their experiences with the outdoors within their cultural context, as well as to inform the pre-and post-surveys that would be used to measure the benefits of OBA’s ESE program by focusing on participants’ understanding of nature, self-improvement, and the effect of hav...AuthorsJosé J. Sánchez, David Flores, Lorie Srivastava, Emily Schlickman, Jianhao Cui, Maria V Arias, Antonio DavilaKeywordsSourceSociety & Natural Resources. 28(4): 1-14.Year2025
- Audible sound is known to originate from wildland fires. We show audible sound is accompanied by infrasound emissions, originating from the active combustion zone in a prescribed fire. We collected data from one of multiple prescribed burns conducted at Eglin Airforce Base, Florida in March of 2023. Single-unit infrasonic sensors and a six-element array were deployed outside the burn unit to capture acoustic signals. The array was configured as a hexagon with aperture of ~10 m. Dual-band radiometers were deployed inside the unit to track the fire’s evolution. A broadband signal is observed by ...AuthorsOmar Marcillo, Jonathan M. Lees, Kara Yedinak, Keith Bourne, Brian Potter, Steven Flanagan, Joseph O’Brien, Joseph PakiKeywordsSourceApplied Acoustics. 235(1): 110657.Year2025
Reducing fire severity and extent bolsters subalpine forest resilience to global change through key demographic pathways
Formally Refereed
High-elevation subalpine forests are experiencing rapid changes in climatic conditions, biological disturbances, and wildfire regimes. Despite this, evidence is mixed as to whether they will undergo major ecological transformation or be resilient to a confluence of global change drivers. Here we use subalpine fir (Abies lasiocarpa) and Englemann spruce (Picea engelmannii), which form co-dominant forests through much of the western United States, to investigate how species' demographic responses to global change influence forest community-wide resilience. We do this by adapting and building on ...AuthorsDaniel L. Perret, David M. Bell, Harold S. J. ZaldKeywordsSourceGlobal Change Biology. 31(2): e70052.Year2025- Large-diameter trees provide vital ecological functions in forested ecosystems. Old, large-diameter trees may also be vulnerable to climate-driven mortality events, but past work on large tree populations has been geographically limited. Here, we characterize the population of large-diameter trees from two size categories, 50 to 100 cm diameter at breast height (DBH) (medium) and >100 cm DBH (big), within the United States using Forest Inventory and Analysis data. Although populations of big trees are concentrated along the west coast, populations of medium trees are more evenly distributed ac...AuthorsPaul J. Chisholm, Andrew N. GrayKeywordsSourceProceedings of the National Academy of Sciences. 122(11): e2421780122.Year2025
- The escalating wildfire problem in Portugal motivated policymakers to develop a wildfire management plan that calls for rural fuel reduction throughout the country. The plan specifies fuel treatments on 250,000-300,000 ha per year over 10 years. Spatial priorities for treatments were delegated to regional and municipal entities. We use a scenario optimization model to allocate and map fuel treatment projects using three hazard metrics (ignition probability, building exposure to wildfire, and potential large fires). The results reveal sharp decision trade-offs among the three priorities within ...AuthorsAlan Ager, Bruno A. Aparıcio, Jose M. C. PereiraKeywordsSourceCell Reports Sustainability. 2: 100361.Year2025
Comparing modeled soil temperature and moisture dynamics during prescribed fires, slash-pile burns and wildfires
Formally Refereed
Background. Wildfires, prescribed fires and slash-pile burns are disturbances that occur in many terrestrial ecosystems. Such fires produce variable surface heat fluxes causing a spectrum of effects on soil, such as seed mortality, nutrient loss, changes in microbial activity and water repellency. Accurately modeling soil heating is vital to predicting these second-order fire effects. The process-based Massman HMV (Heat-Moisture-Vapor) model incorporates soil water evaporation, heat transport and water vapor movement, and captures the observed rapid evaporation of soil moisture. Aims. Improve ...AuthorsPeter R. Robichaud, William J. Massman, Anthony Bova, Antonio Girona-García, Andoni Alfaro-Leranoz, Nancy E. GibsonKeywordsSourceInternational Journal of Wildland Fire. 34: WF22082.Year2025- Current and long-term historic commercial logging in the Black Hills National Forest provided a cost-effective opportunity to investigate exotic plant responses to a wide range of thinning intensities on a large scale. We asked two questions. First, after over 125 years of post-settlement commercial logging, what role does the pre-harvest exotic plant community play in post-harvest responses to logging. Second, how does a broad range of harvest intensities influence exotic plant responses on a large spatial scale. We averaged exotic species relative cover and relative richness to create a synt...AuthorsJack L. Butler, Stefanie D. Wacker, Jacqueline P. Ott, Scott Baggett, Michael A. BattagliaKeywordsSourceForest Ecology and Management. 585: 122652.Year2025
