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Ecosystem

Displaying 1601 - 1620 of 5949 results

Here, we show that the last century of fire suppression in the western U.S. has resulted in fire intensities that are unique over more than 900 years of record in ponderosa pine forests (Pinus ponderosa). Specifically, we use the heat-sensitive…
Author(s): Christopher I. Roos, T. M. Rittenour, Thomas W. Swetnam, Rachel A. Loehman, Kacy L. Hollenback, Matthew J. Liebmann, Dana Drake Rosenstein
Year Published:

Extreme wildfire events are becoming more common and while the immediate risks of particulate exposures to susceptible populations (i.e., elderly, asthmatics) are appreciated, the long-term health effects are not known. In 2017, the Seeley Lake (SL…
Author(s): Ava Orr, Cristi A. L. Migliaccio, Mary Buford, Sarah Ballou, Christopher T. Migliaccio
Year Published:

This study contributes to the understanding of the relationship between crisis management procedures and local resilience responses. Utilizing the context of the 416 wildfire in southwest Colorado during the summer of 2018, this study proposes that…
Author(s): Elizabeth A. Cartier, Lorraine L. Taylor
Year Published:

Increases in burned area across the western US since the mid‐1980’s have been widely documented and linked partially to climate factors, yet evaluations of trends in fire severity are lacking. Here, we evaluate fire severity trends and their…
Author(s): Sean A. Parks, John T. Abatzoglou
Year Published:

The effect of ignition protocol on the development of grassfires is investigated using physics-based simulation. Simulation allows measurement of the forward rate of spread of a fire as a function of time at high temporal resolution. Two ignition…
Author(s): Duncan Sutherland, J. Sharples, K. A. M. Moinuddin
Year Published:

The global COVID-19 pandemic will pose unique challenges to the management of wildland fire in 2020. Fire camps may provide an ideal setting for the transmission of SARS-CoV-2, the virus that causes COVID-19. However, intervention strategies can…
Author(s): Matthew P. Thompson, Jude Bayham, Erin J. Belval
Year Published:

Social acceptability of environmental management actions, such as prescribed burning used to reduce wildfire risk, is critical to achieving positive outcomes. However, environmental managers often need to implement strategies over a long time period…
Author(s): Melinda R. Mylek, Jacki Schirmer
Year Published:

Climate change is causing increased wildfire activity across the western US and creating post-fire conditions that are warmer and drier than they were in the past. Scientists and managers are concerned with the potential for post-fire tree…
Author(s): Kimberley T. Davis, Lacey Hankin
Year Published:

Large outdoor fires are an increasing danger to the built environment. Wildfires that spread into communities, labeled as Wildland-Urban Interface (WUI) fires, are an example of large outdoor fires. Other examples of large outdoor fires are urban…
Author(s): Sam Manzello, Sayaka Suzuki, Michael J. Gollner, A. Carlos Fernandez-Pello
Year Published:

Wildfires shape landscapes and ecosystems, affecting health and infrastructure. Understanding the complex interactions between social organization, human activity and the natural environment that drive wildfire occurrence is becoming increasingly…
Author(s): Yiannis Kountouris
Year Published:

Context: Landscape science relies on foundational concepts of landscape ecology and seeks to understand the physical, biological, and human components of ecosystems to support land management decision-making. Incorporating landscape science into…
Author(s): Sarah Carter, David S. Pilliod, Travis Haby, Karen L. Prentice, Cameron L. Aldridge, Patrick J. Anderson, Z.H. Bowen, John Bradford, Samuel A. Cushman, Joseph C. DeVivo, Michael C. Duniway, Ryan S. Hathaway, Lisa Nelson, Courtney Schultz, Rudy M. Schuster, E. Jamie Trammell
Year Published:

Background: Ecological disturbance is a major driver of ecosystem structure and evolutionary selection, and theory predicts that the frequency and/or intensity of disturbance should determine its effects on communities. However, adaptations of…
Author(s): Jesse E. D. Miller, Hugh Safford
Year Published:

Field and laboratory emission factors (EFs) of wildland fire emissions for 276 known air pollutants sampled across Canada and the US were compiled. An online database, the Smoke Emissions Repository Application (SERA), was created to enable analysis…
Author(s): Susan J. Prichard, Susan M. O'Neill, Paige C. Eagle, Anne Andreu, Brian Drye, Joel Dubowy, Shawn P. Urbanski, Tara Strand
Year Published:

Litterfall production and composition, fall pattern and nutrient content were studied in a mixed stand of Pinus nigra and Pinus pinaster (El Pozuelo), as well as in a pure stand of Pinus nigra (Beteta) in the Cuenca Mountains in order to determine…
Author(s): Juncal Espinosa, Javier Madrigal, Valentín Pando, Ana C. De La Cruz, Mercedes Guijarro, Carmen Hernando
Year Published:

Fire is a complex Earth system phenomenon that fundamentally affects vegetation distributions, biogeochemical cycling, climate, and human society across most of Earth's land surface. Fire regimes are currently changing due to multiple interacting…
Author(s): Brendan M. Rogers, Jennifer Balch, Scott J. Goetz, Caroline E. R. Lehmann, Merritt R. Turetsky
Year Published:

In many fire-prone watersheds, wildfire threatens surface drinking water sources with eroded contaminants. We evaluated the potential to mitigate the risk of degraded water quality by limiting fire sizes and contaminant loads with a containment…
Author(s): Benjamin Gannon, Yu Wei, Matthew P. Thompson
Year Published:

Fungal assemblages after a large-scale disturbance can be diverse and have functionally important roles in forests. However, fungi include several functional groups, and the responses of these groups to different forest disturbances is poorly…
Author(s): Jari Kouki, Kauko Salo
Year Published:

Fires transform soil microbial communities directly via heat-induced mortality and indirectly by altering plant and soil characteristics. Emerging evidence suggests the magnitude of changes to some plant and soil properties increases with burn…
Author(s): Jaron Adkins, Kathryn M. Docherty, Jessica L.M. Gutknecht, Jessica R. Miesel
Year Published:

FIRE PHOTOGRAPHY BEGAN EARLY. As soon as photographs could replace lithographs in magazines and newspapers, photos of firefights, the aftermath of bad burns, and occasionally even flame and smoke appeared. When Harper’s Weekly covered the 1871 and…
Author(s): Stephen Pyne
Year Published:

As we enter the wildfire season in the northern hemisphere, the potential for a dangerous interaction between SARS-CoV-2 and smoke pollution should be recognized and acknowledged. This is challenging because the public health threat of COVID-19 is…
Author(s): Sarah B. Henderson
Year Published: