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Ecosystem

Displaying 1981 - 2000 of 6011 results

Wildland fire and ecological researchers use empirical and semi-empirical modeling systems to assess fire behavior and danger. This technical note describes the firebehavioR package, a porting of two fire behavior modeling systems, Crown Fire…
Author(s): Justin P. Ziegler, Chad M. Hoffman, William E. Mell
Year Published:

Habitat use of bats may shift following population-level impacts of white-nose syndrome (WNS). Specifically, the effect of WNS across forest landscapes is unclear in relation to prescribed fire. Mammoth Cave National Park (MACA) has employed a…
Author(s): Luke E. Dodd, Matthew B. Dickinson, Michael J. Lacki, Lynne K. Rieske, Nick Skowronski, Steven C. Thomas, Rickard S. Toomey III
Year Published:

Recent shifts in global forest area highlight the importance of understanding the causes and consequences of forest change. To examine the influence of several potential drivers of forest cover change, we used supervised classifications of…
Author(s): Kyle Rodman, Thomas T. Veblen, Sara Saraceni, Teresa B. Chapman
Year Published:

Fluorosurfactants used in current firefighting foams must be replaced with environmentally-friendly surfactants; however, current fluorine-free surfactants have subpar fire performance. Understanding how a surfactant affects fire performance of a…
Author(s): K. M. Hinnant, S. L. Giles, E. P. Smith, A. W. Snow, R. Ananth
Year Published:

Post-fire recovery trajectories in ponderosa pine (Pinus ponderosa Laws.) forests of the southwestern United States are increasingly shifting away from pre-burn vegetation communities. This study investigated whether phenological metrics derived…
Author(s): Jessica J. Walker, Christopher E. Soulard
Year Published:

Ensemble transform Kalman filter (ETKF) is an extension of ensemble Kalman filter (EnKF), which avoids using 'perturbed observations' to eliminate additional sampling errors. This paper demonstrates the capability of ETKF algorithm for sequentially…
Author(s): Tengjiao Zhou, Long Ding, Jie Ji, Lin Li, Weiwei Huang
Year Published:

In this paper, we describe the international activities that FAO has undertaken with partners over the years and then reflect on the role of international relations in reducing wildfire impacts on ecosystem services. FAO has long had a focus on…
Author(s): Pieter van Lierop, Peter F. Moore
Year Published:

Smouldering wildfire in peatlands is one of the largest and longest-lasting fire phenomena on Earth, but whether peat can support a flaming fire like other surface fuels is still unclear. Our experiments demonstrate the successful piloted flaming…
Author(s): Shaorun Lin, Peiyi Sun, Xinyan Huang
Year Published:

Background: Behavioral responses are the most immediate ways animals interact with their environment, and are primary mechanisms by which individuals mitigate mortality risk while ensuring reproductive success. In disturbance-driven landscapes,…
Author(s): Bradley S. Cohen, Thomas J. Prebyl, Bret A. Collier, Michael J. Chamberlain
Year Published:

Safety rules have long been associated with a rationalist or compliance/violation logic, meaning that workers must comply with rules, and can expect disciplinary action if they violate them. In recent years, scholars have begun to introduce an…
Author(s): Jody L. Jahn
Year Published:

Previously burned areas can influence the occurrence, extent, and severity of subsequent wildfires, which may influence expenditures on large fires. We develop a conceptual model of how interactions of fires with previously burned areas may…
Author(s): Erin J. Belval, Christopher D. O'Connor, Matthew P. Thompson, Michael S. Hand
Year Published:

Climate change is expected to cause widespread shifts in the distribution and abundance of plant species through direct impacts on mortality, regeneration, and survival. At landscape scales, climate impacts will be strongly mediated by disturbances…
Author(s): Kerry Kemp, Philip E. Higuera, Penelope Morgan, John T. Abatzoglou
Year Published:

In the managed forest of Canada, forest fires are actively suppressed through efficient initial attack capability; however, the impact of different factors on the suppression success remains to be understood. The aim of this paper was to analyze the…
Author(s): Adrián Cardil, Miren Lorente, Dominique Boucher, Jonathan Boucher, Sylvie Gauthier
Year Published:

Firebrands generated from structures are known to be a source of rapid flame spread within communities in large outdoor fires, such as wildland-urban (WUI) fires, and urban fires. It is important to better understand firebrand generation mechanism…
Author(s): Sayaka Suzuki, Sam Manzello
Year Published:

Early forest fire detection can effectively be achieved by systems of specialised tower-mounted cameras. With the aim of maximising system visibility of smoke above a prescribed region, the process of selecting multiple tower sites from a large…
Author(s): Andries Heyns, Warren du Plessis, Michael Kosch, Gavin Hough
Year Published:

Forest fires threaten a large part of the world's forests, communities, and industrial plants, triggering technological accidents (Natechs). Forest fire modelling with respect to contributing spatial parameters is one of the well-known ways not only…
Author(s): Mohsen Naderpour, Hossein Mojaddadi Rizeei, Nima Khakzad, Biswajeet Pradhan
Year Published:

A series of small-scale laboratory fires were conducted to study the relationship between fuel type, moisture content, energy released and emissions during the combustion process of live wildland fuels. The experimental design sought to understand…
Author(s): Nathaniel W. May, Evan Ellicott, Michael J. Gollner
Year Published:

Forests fires in northern Iran have always been common, but the number of forest fires has been growing over the last decade. It is believed, but not proven, that this growth can be attributed to the increasing temperatures and droughts. In general…
Author(s): Omid Ghorbanzadeh, Thomas Blaschke, Khalil Gholamnia, Jagannath Aryal
Year Published:

The emergence of affordable unmanned aerial systems (UAS) creates new opportunities to study fire behavior and ecosystem pattern-process relationships. A rotor-wing UAS hovering above a fire provides a static, scalable sensing platform that can…
Author(s): Christopher J. Moran, Carl A. Seielstad, Matthew R. Cunningham, Valentijn Hoff, Russell A. Parsons, Lloyd P. Queen, Katie Sauerbrey, Tim Wallace
Year Published:

from text "In the recent manuscript by Collins et al. [1], the authors conclude that the manuscript sample (n = 9) of wildland firefighters (WLFFs) experienced changes in body composition across the 2017 season. However, the authors outline a…
Author(s): Brent Ruby
Year Published: