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Ecosystem

Displaying 1001 - 1020 of 5894 results

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:

Managed wildfires, naturally ignited wildfires that are managed for resource benefit, have the potential to reduce fuel loads and minimize the effects of future wildfires, but have been utilized mainly in remote settings. A new policy federal…
Author(s): Jose M. Iniguez, Andrea E. Thode, Sarah M. McCaffrey, Alexander M. Evans, Marc D. Meyer, Shaula J. Hedwall
Year Published:

Abrupt changes in wind direction and speed can dramatically impact wildfire development and spread, endangering firefighters. A frequent cause of such wind shifts is outflow from thunderstorms and organised convective systems; thus, their…
Author(s): Jim Bresch, Jordan G. Powers, Craig S. Schwartz, Ryan A. Sobash, Janice L. Coen
Year Published:

In this study, we investigate a novel application of the photogrammetric monoplotting technique for assessing wildfires. We demonstrate the use of the software program WSL Monoplotting Tool (MPT) to georeference operational oblique aerial wildfire…
Author(s): Henry Hart, Daniel D. B. Perrakis, Stephen W. Taylor, Christopher Bone, Claudio Bozzini
Year Published:

Dead fuel moisture content (DFMC) is a key driver for fire occurrence and is often an important input to many fire simulation models. There are two main approaches to estimating DFMC: empirical and process-based models. The former mainly relies on…
Author(s): Chanquan Fan, Binbin He
Year Published:

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:

Following the 2020 wildfires in Australia an extremely large amount of smoke entered the stratosphere and was dispersed throughout the southern hemisphere stratosphere. However, the pathway and entry point of the smoke into the stratosphere and the…
Author(s): Leehi Magaritz-Ronen, Shira Raveh-Rubin
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:

While fire is an important ecological process in the western United States, wildfire size and severity have increased over recent decades as a result of climate change, historical fire suppression, and lack of adequate fuels management. Due to the…
Author(s): Lisa Patrick Bentley, Brieanne Forbes
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:

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:

Fire and fuel management is a high priority in North American sagebrush ecosystems where the expansion of piñon and juniper trees and the invasion of nonnative annual grasses are altering fire regimes and resulting in loss of sagebrush species and…
Author(s): Jeanne C. Chambers, Alexandra K. Urza, David Board, Richard F. Miller, David A. Pyke, Bruce A. Roundy, Eugene Schupp, Robin J. Tausch
Year Published:

Wildfire is increasing in frequency and size in the western United States with climate change and invasive species such as cheatgrass. This increase is also causing an increase in the need for restoration techniques, especially in low-elevation,…
Author(s): Madeline N. Grant-Hoffman, Heidi L. Plank
Year Published:

Across the globe, aircraft that apply water and suppressants during active wildfires play key roles in wildfire suppression, and these suppression resources can be highly effective. In the United States, US Department of Agriculture Forest Service (…
Author(s): Crystal S. Stonesifer, David E. Calkin, Matthew P. Thompson, Erin J. Belval
Year Published: