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Ecosystem

Displaying 1201 - 1220 of 6066 results

Native grasslands have been vastly transformed with the expansion of human activities. Applied fire regimes offer conservation-based management an opportunity to enhance remaining grassland biodiversity and secure its persistence into the future.…
Author(s): Paul J. Gordijn, Timothy G. O'Connor
Year Published:

This review summarizes information that was available in the scientific literature as of 2020 on the biology, ecology, and effects of fire and control methods on yellow starthistle in North America. Yellow starthistle is a nonnative, invasive forb…
Author(s): Kristin L. Zouhar, Robin J. Innes
Year Published:

Every year forest fires destroy millions of hectares of land worldwide. Detecting forest fire ignition in the early stages is fundamental to avoid forest fires catastrophes. In this approach, Wireless Sensor Network is explored to develop a…
Author(s): Beatriz Azevedo, Thadeu Brito, José Lima, Ana Pereira
Year Published:

Formal regulation of private property and exploration of 'risk transmission' across ownerships are two popular means for addressing wildfire management at landscape scales. However, existing studies also indicate that a number of barriers exist for…
Author(s): Travis B. Paveglio, Amanda M. Stasiewicz, Catrin Edgeley
Year Published:

In recent years, the importance of soil health for ecosystem functions has come further into the scientific focus (Lehmann et al., 2020). Especially after severe ecosystem disturbances, soil formation has to start anew. Such disturbances, which…
Author(s): Maik Veste, Vincent John Martin Noah Felde, Steven D. Warren, Nicole Pietrasiak
Year Published:

Wildfires are known to be one of the main causes of soil erosion and land degradation, and their impacts on ecosystems and society are expected to increase in the future due to changes in climate and land use. It is therefore vital to mitigate the…
Author(s): Antonio Girona-García, Diana C.S. Vieira, Joana Silva, Cristina Fernández, Peter R. Robichaud, Jan J. Keizer
Year Published:

Effective wildland fire management increasingly entails fostering shared stewardship of the landscape across ownership boundaries, and enacting collaborative strategies that require management responsibilities distributed among public agencies,…
Author(s): Alex W. Kirkpatrick
Year Published:

We celebrate the 50th anniversary of the Canadian Journal of Forest Research by reflecting on the considerable progress accomplished in select areas of Canadian wildland fire science over the past half century. Specifically, we discuss key…
Author(s): Sean C. P. Coogan, Lori D. Daniels, Den Boychuk, Philip J. Burton, Michael D. Flannigan, Sylvie Gauthier, Victor G. Kafka, Jane Park, B. Mike Wotton
Year Published:

Increasing wildfire activity in western North America has the potential to remove forest canopy cover over large areas, increasing the vulnerability of understory plants and juvenile trees to microclimatic extremes. To understand the impacts of…
Author(s): Kyra D. Wolf, Philip E. Higuera, Kimberley T. Davis, Solomon Z. Dobrowski
Year Published:

Wildfire is a dynamic natural process that continually shapes the structure and composition of landscapes. However, due to a combination of factors including climate change, management decisions and population growth, this natural process is having…
Author(s): Brooke R. Saari, Sonia A. Hall
Year Published:

Mountain pine beetle (MPB; Dendroctonus ponderosae Hopkins) causes extensive tree mortality in whitebark pine (Pinus albicaulis Engelm) forests. Previous studies conducted in lodgepole pine (Pinus contorta Douglas), Douglas-fir (Pseudotsuga…
Author(s): Curtis A. Gray, Chelsea Toone, Michael J. Jenkins, Sarah E. Null, Larissa L. Yocom
Year Published:

The effectiveness of a fuelbreak, created in a homogeneous grassland on a flat terrain, was studied numerically. The analysis relies on 3D numerical simulations that were performed using a detailed physical-fire-model (FIRESTAR3D) based on a…
Author(s): N. Frangieh, Gilbert Accary, Jean Louis Rossi, D. Morvan, Sofiane Meradji, Thierry Marcelli, François Joseph Chatelon
Year Published:

A new instrument to quantify firebrand dynamics during fires with particular focus on those associated with the Wildland-Urban Interface (WUI) has been developed. During WUI fires, firebrands can ignite spot fires, which can rapidly increase the…
Author(s): Simone Zen, Jan C. Thomas, Eric Mueller, Bhisham Dhurandher, Michael R. Gallagher, Nick Skowronski, Rory Hadden
Year Published:

The current COVID-19 pandemic has demonstrated the vulnerability of healthcare systems worldwide. When combined with natural disasters, pandemics can further strain an already exhausted healthcare system. To date, frameworks for quantifying the…
Author(s): Emad M. Hassan, Hussam Mahmoud
Year Published:

Motivation. The World Health Organization declared COVID-19 a global pandemic on March 11, 2020 just as the southwestern region begins to see increased fire activity. The project PIs had been collaborating on other wildfire projects but also had…
Author(s): Jude Bayham, Erin J. Belval, Matthew P. Thompson
Year Published:

Violent fire-driven convection can manifest as towering pyrocumulus (pyroCu) or pyrocumulonimbus (pyroCb) clouds, which can have devastating impacts on the environment and society. Their associated fire spread is erratic, unpredictable and not…
Author(s): Rachel Badlan, J. Sharples, Jason P. Evans, Richard H. D. McRae
Year Published:

We present an analysis of the spatio-temporal trends derived from long-term burned area (BA) data series. Two global BA products were included in our analysis, the FireCCI51 (2001-2019) and the FireCCILT11 (1982-2018) datasets. The former was…
Author(s): Gonzalo Otón, Jose M. C. Pereira, João M. N. Silva, Emilio Chuvieco
Year Published:

A conceptual model based on the balance of energy in a system composed of a burning cigarette, ambient flow and a porous fuel bed is proposed to study the burning of a single cigarette and the process of fuel bed dehydration, pyrolysis and its…
Author(s): Domingos Xavier Viegas, Ricardo Oliveira, Miguel Almeida, Donghyun Kim
Year Published:

Changing climatic conditions prompt concerns about vegetation response to disturbance under future compared to past conditions. In this long‐term study, we examined soil climate and vegetation differences at lower, mid, and upper elevations in two…
Author(s): Bruce A. Roundy, Jeanne C. Chambers
Year Published:

Grazing and fire are both independently important drivers of plant community dynamics; however, their interactive effects may be even more influential. Little is known about prefire grazing effects on postfire plant community dynamics. We…
Author(s): Kirk W. Davies, Jonathan D. Bates, Chad S. Boyd, Rory O'Connor, Stella M. Copeland
Year Published: