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Ecosystem

Displaying 1141 - 1160 of 5893 results

With an increase in the frequency and severity of wildfires across the globe and resultant changes to long-established fire regimes, the mapping of fire severity is a vital part of monitoring ecosystem resilience and recovery. The emergence of…
Author(s): Samuel Hillman, Bryan Hally, Luke Wallace, Darren Turner, Arko Lucieer, Karin J. Reinke, Simon D. Jones
Year Published:

Background: Fire suppression and anthropogenic land use have increased severity of wildfire in western U.S. dry conifer forests. Managers use fuels reduction methods (e.g., prescribed fire) to limit high-severity wildfire and restore ecological…
Author(s): Quresh Latif, Victoria A. Saab, Jonathan G. Dudley
Year Published:

Policy initiatives such as the Collaborative Forest Landscape Restoration Program (Rep. Holt, 2009) have emphasized landscape-scale (> 10,000 ac) fuel reduction treatments to mitigate adverse impacts of large, uncharacteristic wildfires in the…
Author(s): Chad M. Hoffman, William E. Mell, Russell A. Parsons, Seth A. Ex, Justin P. Ziegler
Year Published:

We estimated cardiopulmonary morbidity and mortality associated with wildfire smoke (WFS) fine particulate matter (PM2.5) in the Front Range of Colorado from 2010 - 2015. To estimate WFS PM2.5, we developed a daily kriged PM2.5 surface at a 15km X…
Author(s): Sheryl Magzamen, Ryan W. Gan, Jingyang Liu, Katelyn O'Dell, Bonne Ford Hotmann, Kevin Berg, Kirk Bol, Ander Wilson, Emily V. Fischer, Jeffrey R. Pierce
Year Published:

Pile burning is the most common method of logging residue disposal in Rocky Mountain forests. Though the high temperatures reached during burning affect numerous soil properties in the short term, the longer-term effects of the practice are less…
Author(s): Charles C. Rhoades, Timothy S. Fegel, Tahir Zaman, Paula J. Fornwalt, Susan Miller
Year Published:

The purpose of this study was to investigate the merging behavior of small-scale buoyant flames that might be representative of flames from a leaf in a shrub. Zirconia felt pads soaked in n-heptane were suspended on thin rods and spaced both…
Author(s): Thomas H. Fletcher, Denver Haycock, Seth Tollefsen, David O. Lignell
Year Published:

A typographical error in the original version of Table S1 as posted in 2012 has been brought to our attention. The coefficient in the Thomas (1963) equation (0.02665) is correct but the exponent should have read 0.667 and not 0.46. Any calculations…
Author(s): Martin E. Alexander, Miguel G. Cruz
Year Published:

Fire is one of the main causes of environmental and ecosystem change. Geospatial data, derived from satellite images and surveying observations, are a useful tool in managing land use and land cover changes. In this paper, we present a multi-…
Author(s): Narissara Nuthammachot, Dimitris Stratoulias
Year Published:

Firefighters’ safety during fire responses depends on sound policies and procedures that ensure they can do their jobs efficiently and effectively. Decisions on vehicle crew size and total effective response force deployment should be based on the…
Author(s): Lori Moore-Merrell, Steve Kerber, Gavin P. Horn, Denise L. Smith
Year Published:

Daily, fine-scale spatially explicit wildland fire occurrence prediction (FOP) models can inform fire management decisions. Many different data-driven modelling methods have been used for FOP. Several studies use multiple modelling methods to…
Author(s): Nathan Phelps, Douglas G. Woolford
Year Published:

Aim: Fine‐scale topography and canopy cover can play an important role in mediating effects of regional‐scale climate change on the below‐canopy environment in mountain forests. The aim of this study was to determine how below‐canopy temperatures in…
Author(s): Amanda R. Carlson, Jason S. Sibold, Jose F. Negron
Year Published:

Water supply impairment from increased contaminant mobilization and transport after wildfire is a major concern for communities that rely on surface water from fire-prone watersheds. In this article we present a Monte Carlo simulation method to…
Author(s): Benjamin Gannon, Yu Wei, Matthew P. Thompson, Joe H. Scott, Karen C. Short
Year Published:

Wildfires significantly influence ecosystem patterns and processes on a global scale. In many cases, they pose a threat to human lives and property. Through greenhouse gas emissions, wildfires also directly contribute to climate change. The…
Author(s): Michael Nolde, Simon Plank, Rudolf Richter, Doris Klein, Torsten Riedlinger
Year Published:

The objective of this work is to model and simulate aerial drops of fire retardants in dangerous fire environments. Specifically, the work develops a computational framework for a model problem combining: [1.] A meshless discrete element component…
Author(s): T. I. Zohdi
Year Published:

One of the main sources of greenhouse gases is forest fire, with carbon dioxide as its main constituent. With increasing global surface temperatures, the probability of forest fire events also increases. A method that enables rapid quantification of…
Author(s): Putri Setiani, Luhur Akbar Devianto, Fatwa Ramdani
Year Published:

Wildfire size and frequency have increased in the western United States since the 1950s, but it is unclear how seeding treatments have altered fire regimes in arid steppe systems. We analyzed how the number of fires since 1955 and the fire return…
Author(s): Chris Bowman-Prideaux, Beth A. Newingham, Eva K. Strand
Year Published:

Delaying protective action decision making in wildfire is inconsistent with fire authorities’ advice and is associated with fatalities. A comprehensive understanding of why at-risk residents wait and see whether they will evacuate from a wildfire or…
Author(s): Ken Strahan, John Gilbert
Year Published:

Expert opinion can be a valuable tool for informed decision making. Concerning wildfire susceptibility reduction at the landscape scale, forest ecosystem experts play a key role in offering advice about appropriate fuel management practices to be…
Author(s): Ana Martins, Ana Novais, José L. Santos, Maria João Canadas
Year Published:

Fire plays a role in the vast majority of terrestrial ecosystems. Researchers have discovered that the negative effects of prescribed fire on soil, water and vegetation are transitory, and that benefits are much greater. This paper presents a…
Author(s): Marcos Francos, Xavier Ubeda
Year Published:

Understanding how abiotic disturbance and biotic interactions determine pollinator and flowering‐plant diversity is critically important given global climate change and widespread pollinator declines. To predict responses of pollinators and…
Author(s): Joseph A. LaManna, Laura A. Burkle, R. Travis Belote, Jonathan A. Myers
Year Published: