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Ecosystem

Displaying 1001 - 1020 of 6066 results

Extreme wildfires are increasing in frequency globally, prompting new efforts to mitigate risk. The ecological appropriateness of risk mitigation strategies, however, depends on what factors are driving these increases. While regional syntheses…
Author(s): Erin J. Hanan, Jianning Ren, Christina Tague, Crystal A. Kolden, John T. Abatzoglou, Ryan R. Bart, Maureen C. Kennedy, Mingliang Liu, Jennifer C. Adam
Year Published:

The National Cohesive Wildland Fire Management Strategy (hereafter: Cohesive Strategy) mandates the restoration and maintenance of landscapes, with the goal that “landscapes across all jurisdictions are resilient to fire-related disturbances in…
Author(s): Sharon M. Hood, Donald A. Falk, Martin Nie
Year Published:

The main purpose of this study was to characterise the thermal environment and risk of heat burns of wildland firefighters in relation to the suppression tasks performed in real wildland fires. Measurements of air temperature and heat flux were…
Author(s): Belén Carballo-Leyenda, José G. Villa, Jorge López-Satué, Jose A. Rodríguez-Marroyo
Year Published:

As wildland fires amplify in size in many regions in the western USA, land and water managers are increasingly concerned about the deleterious effects on drinking water supplies. Consequences of severe wildfires include disturbed soils and areas of…
Author(s): Sarah A. Lewis, Peter R. Robichaud, Andrew T. Hudak, Eva K. Strand, Jan U. H. Eitel, Robert E. Brown
Year Published:

A key challenge in the United States is how to manage wildfire risk across boundaries and scales, as roles, responsibilities, and ability to act are distributed among actors in ways that do not always incentivize collective action. In this review…
Author(s): Emily Jane Davis, Heidi Huber-Stearns, Anthony S. Cheng, Meredith Jacobson
Year Published:

We appreciate Hutto’s call to promote positive ecological outcomes by recognizing diverse forest fire ecologies. Nevertheless, we continue to argue that restoration treatments are appropriate in the approximately 17 million ha of forest in the…
Author(s): Scott L. Stephens, Anthony L. Westerling, Matthew D. Hurteau, M. Zachariah Perry, Courtney Schultz, Sally Thompson
Year Published:

Wildfire activity in the western United States has been increasing since the 1970s, with many fires occurring on land managed by government agencies. Over six million acres of public lands are surrounded by private land and lack road access, making…
Author(s): Bryan Leonard, Andrew J. Plantinga, Matthew J. Wibbenmeyer
Year Published:

Risk management is a significant part of federal wildland fire management in the USA because policy encourages the use of fire to maintain and restore ecosystems while protecting life and property. In this study, patterns of wildfire risk were…
Author(s): Erin Noonan-Wright, Carl A. Seielstad
Year Published:

A physics/chemistry-based numerical model for predicting the emission of fine particles from wildfires is proposed. This model implements the fundamental mechanisms of soot formation in a combustion environment: soot nucleation, surface growth,…
Author(s): Alexander J. Josephson, Daniel Castaño, Eunmo Koo, Rodman Linn
Year Published:

im Gumm: I have the privilege of talking to Leslie Weldon and Holly Krake about psychological safety in general and, in particular, an article that Holly led in writing called “The Big Quiet.” Leslie, let’s start with you: What comes to mind when we…
Author(s): Jim Gumm
Year Published:

Bark beetle outbreaks and forest fires have imposed severe ecological damage and caused billions of dollars in lost resources in recent decades. The impact of such combined disturbances is projected to become more severe, especially as climate…
Author(s): Peter C. Jentsch, Chris T. Bauch, Madhur Anand
Year Published:

Wildland fire management decision-makers need to quickly understand large amounts of quantitative information under stressful conditions. Categorization and visualization 'schemes' have long been used to help, but how they are done affects the speed…
Author(s): Den Boychuk, Colin B. McFayden, Douglas G. Woolford, B. Mike Wotton, Aaron Stacey, Jordan Evens, Chelene C. Krezek-Hanes, Melanie J. Wheatley
Year Published:

The wildland firefighter exposure and health effect (WFFEHE) study was a 2-year repeated-measures study to investigate occupational exposures and acute and subacute health effects among wildland firefighters. This manuscript describes the study…
Author(s): Kathleen M. Navarro, Corey Butler, Kenneth Fent, Christine Toennis, Deborah Sammons, Alejandra Ramirez-Cardenas, Kathleen A. Clark, David C. Byrne, Pamela S. Graydon, Christa Hale, Andrea F. Wilkinson, Denise L. Smith, Marissa C. Alexander-Scott, Lynne E. Pinkerton, Judith Eisenberg, Joseph W. Domitrovich
Year Published:

Subalpine forests that historically burned every 100–300 yr are expected to burn more frequently as climate warms, perhaps before trees reach reproductive maturity or produce a serotinous seedbank. Tree regeneration after short‐interval (<30‐yr)…
Author(s): Nathan S. Gill, Tyler J. Hoecker, Monica G. Turner
Year Published:

This FEIS species review synthesizes information on the relationship of Rubus armeniacus, R. bifrons(Himalayan blackberry) to fire--how fire affects the species and its habitat, invasiveness of the species, and fire management considerations.…
Author(s): Janet L. Fryer
Year Published:

Ponderosa pine (Pinus ponderosa) forests are increasingly experiencing high-severity, stand-replacing fires. Whereas alterations to aboveground ecosystems have been extensively studied, little is known about soil fungal responses in fire-adapted…
Author(s): M. Fabiola Pulido-Chavez, Ernesto Alvarado, Thomas H. DeLuca, Robert L. Edmonds, Sydney I. Glassman
Year Published:

Objectives: To determine the impact of bushfires on children’s physical activity. Design: Natural experiment comparing device-measured physical activity and air quality index data for schools exposed and not exposed to the Australian bushfires.…
Author(s): Borjadel Pozo Cruz, Timothy B. Hartwig, Taren Sanders, Michael Noetel, Philip Parker, Devan Antczak, Jane Lee, David R. Lubans, Adrian Bauman, Ester Cerin, Chris Lonsdale
Year Published:

In recent years wildland fires in the United States have had significant impacts on local and regional air quality and negative human health outcomes. Although the primary health concerns from wildland fires come from fine particulate matter (PM2:5…
Author(s): Russell W. Long, Andrew Whitehill, Andrew Habel, Shawn P. Urbanski, Hannah Halliday, Maribel Colón, Surender Kaushik, Matthew S. Landis
Year Published:

Extreme wildfire events in recent years are shaking our established knowledge of how fire regimes respond to climate variables and how societies need to react to fire impacts. Albeit fires are stochastic and extreme in nature, the speed, intensity,…
Author(s): Andrea Duane, Marc Castellnou, Lluis Brotons
Year Published:

The 2020 fire season in the western United States (the West) has been staggering: over 2.5 million ha have burned as of 30 September, including over 1.5 million ha in California (3.7% of the state), in part from five of the six largest fires in…
Author(s): Philip E. Higuera, John T. Abatzoglou
Year Published: