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Ecosystem

Displaying 1381 - 1400 of 6051 results

High-severity wildfires, which can homogenize floral communities, are becoming more common relative to historic mixed-severity fire regimes in the Northern Rockies of the U.S. High-severity wildfire could negatively affect bumble bees, which are…
Author(s): Michael P. Simanonok, Laura A. Burkle
Year Published:

The impact of wildfires and of restoration actions on soil organic matter (SOM) content and structure was studied in a soil under pine (Pinus pinea) from Doñana National Park (SW Spain). Samples were collected from burnt areas before (B) and after…
Author(s): Nicasio T. Jiménez-Morillo, Gonzalo Almendros, José M. de la Rosa, Antonio Jordán, Lorena M. Zavala, Arturo J. P. Granged, José A. González-Pérez
Year Published:

Smoke exposure from bushfires, such as those experienced in Australia during 2019-2020, can reach levels up to 10 times those deemed hazardous. Short‐term and extended exposure to high levels of air pollution can be associated with adverse health…
Author(s): Clare M. Walter, Elena K. Schneider-Futschik, Luke D. Knibbs, Louis B. Irving
Year Published:

Increasing temperatures and irregular precipitation associated with climate change, along with increasing frequency and severity of wildfires, contribute to increased downstream transport of sediment and total organic carbon (TOC), with potential…
Author(s): Danielle Loiselle, Xinzhong Du, Daniel S. Alessi, Kevin D. Bladon, Monireh Faramarzi
Year Published:

Complex, reciprocal interactions among climate, disturbance, and vegetation dramatically alter spatial landscape patterns and influence ecosystem dynamics. As climate and disturbance regimes shift, historical analogs and past empirical studies may…
Author(s): Rachel A. Loehman, Robert E. Keane, Lisa M. Holsinger
Year Published:

Climate-driven increases in disturbance frequency and extent augment the potential for compounded disturbances. Drawing on well-studied forests that experienced successive disturbances, we asked: (1) how does post-fire cover of litter, herbaceous…
Author(s): Nathan S. Gill, Daniel Jarvis, John Rogan, Dominik Kulakowski
Year Published:

“Coproduction” as a transformative model for fire science application is receiving increasing attention as wildland fire managers face increasingly complex contexts for prescribed fire applications and wildfire suppression (Hiers 2017). Among…
Author(s): J. Morgan Varner, J. Kevin Hiers
Year Published:

Understanding the soil heat and moisture transport is significant for assessing the living condition of vegetation and microorganisms in soils. Numerous studies have been conducted to understand the coupled soil heat and moisture transport under '…
Author(s): Ting Bao, Si Liu, Yinghong Qin, Zhen Liu
Year Published:

Recent data show that fire concentration is becoming rather predominant in Southern European areas. Specifically, 2017–2018 were some of the worst years on record for fires in Europe. We conduct a survey among households in order to understand…
Author(s): Maria Alló, Maria L. Loureiro
Year Published:

Globally, wildfires are increasing in frequency and severity, exposing populations to toxic trace elements stored within forests. Trace element and Pb isotope compositions in aerosols (n = 87) from four major wildfires near Sydney, Australia (1994-…
Author(s): Cynthia F. Isley, Mark Patrick Taylor
Year Published:

Large wildfires can have profound and lasting impacts not only from direct consumption of vegetation but also longer‐term effects such as persistent soil erosion. The 2002 Hayman Fire burned in one of the watersheds supplying water to the Denver…
Author(s): Peter R. Robichaud, Sarah A. Lewis, Joseph W. Wagenbrenner, Robert E. Brown, Frederick B. Pierson
Year Published:

Nearly a century of fire suppression in most forested land of the United States has limited researchers’ ability to construct and rigorously test conceptual models of forest structural development in mixed-conifer ecosystems. As a result, land…
Author(s): Julia Berkey, R. Travis Belote, Colin T. Maher, Andrew J. Larson
Year Published:

Warming‐induced mountain pine beetle (Dendroctonus ponderosae; MPB) outbreaks have caused extensive mortality of whitebark pine (Pinus albicaulis; WBP) throughout the species’ range. In the highest mountains where WBP occur, they cross alpine…
Author(s): Colin T. Maher, Constance I. Millar, David L.R. Affleck, Robert E. Keane, Anna Sala, Claudine Tobalske, Andrew J. Larson, Cara R. Nelson
Year Published:

Increasingly, scholars have sought to understand the role of collective action across property boundaries to address natural resource management challenges. Although the growing focus on collective action for natural resource management has led to…
Author(s): Rebecca M. Niemiec, Sarah M. McCaffrey, Megan S. Jones
Year Published:

Contingency firelines can be used to back up primary lines to increase probability of fire containment, decrease fire losses, and improve firefighter safety. In this study, we classify firelines into primary, contingency, and response lines. We…
Author(s): Yu Wei, Matthew P. Thompson, Erin J. Belval, Benjamin Gannon, David E. Calkin, Christopher D. O'Connor
Year Published:

Seeding an area after a fire has long been used to control erosion and suppress problem invasive grasses like cheatgrass. But for managers, choosing the right seed mix to use can be tricky. Seed mixes containing only native species are ideal for…
Author(s):
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To better understand the implications of the word resilience for western forest and fire management, this study explores its emerging use in a large body of policy and management documents produced between 1980 and 2016. We performed a computer-…
Author(s): Owen A. Selles, Adena R. Rissman
Year Published:

California’s high density, fire-excluded forests experienced an extreme drought accompanied by warmer than normal temperatures from 2012 to 2015, resulting in the deaths of millions of trees. We examined tree mortality and growth of mixed-conifer…
Author(s): Eric E. Knapp, Alexis Bernal, Jeffrey M. Kane, Christopher J. Fettig, Malcolm P. North
Year Published:

The present study aimed to determine moisture thresholds for combustion of organic soils sampled from various vegetation types at 63 locations in Tasmania, Australia. To observe whether the soil sample sustained smouldering combustion, moisture…
Author(s): Lynda D. Prior, Ben J. French, Kathryn Storey, Grant J. Williamson, David M. J. S. Bowman
Year Published:

Air pollution with PM2.5 (particulate matter smaller than 2.5 micro-metres in diameter) is a major health hazard in many cities worldwide, but since measuring instruments have traditionally been expensive, monitoring sites are rare and generally…
Author(s): Hugh Forehead, Johan Barthelemy, Bilal Arshad, Nicolas Verstaevel, Owen F. Price, Pascal Perez
Year Published: