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Ecosystem

Displaying 1681 - 1700 of 5957 results

Thermal heterogeneity provides options for organisms during extreme temperatures that can contribute to their fitness. Sagebrush (Artemisia spp.) communities exhibit vegetation heterogeneity that creates thermal variation at fine spatial scales.…
Author(s): Christopher R. Anthony, Christian A. Hagen, Katie M. Dugger, R. Dwayne Elmore
Year Published:

Goals of fostering ecological resilience are increasingly used to guide U.S. public land management in the context of anthropogenic climate change and increasing landscape disturbances. There are, however, few operational means of assessing the…
Author(s): Robert E. Keane, Sharon M. Hood, Rachel A. Loehman, Lisa M. Holsinger, Philip E. Higuera, Donald A. Falk
Year Published:

Modelling the spatial prioritisation of fuel treatments and their net effect on values at risk is an important area for applied work as economic damages from wildfire continue to grow. We model and demonstrate a cost-effective fuel treatment…
Author(s): Jason Kreitler, Matthew P. Thompson, Nicole M. Vaillant, Todd J. Hawbaker
Year Published:

Restoration and rehabilitation treatments that manipulate vegetation can be expensive to implement but are infrequently evaluated to determine whether spending more improves intended outcomes. We assessed commonly implemented vegetation treatments…
Author(s): Seth Munson, Ethan O. Yackulic, Lucas S. Bair, Stella M. Copeland, Kevin L. Gunnell
Year Published:

Understanding the social acceptability of managing forest fuels to reduce wildfire risk is essential to achieving long-term investment in fuel management that is supported publicly and politically. Integrative Complexity Theory (ICT) examines how…
Author(s): Melinda R. Mylek, Jacki Schirmer
Year Published:

Increasingly frequent large wildfires in the western US raise questions about the effects of climate and site-level factors on forest ecosystem resilience. This study presents findings from seedling and sapling surveys conducted across 179 sites 15–…
Author(s): Angela Boag, Mark J. Ducey, Michael W. Palace, Joel Hartter
Year Published:

Previous research has suggested that prescribed fire will become more necessary in the northern Great Plains of the United States as woody encroachment and invasive plant species cover increase. Prescribed fire will likely become a more frequent…
Author(s): Katherine C. Kral-O'Brien, Kevin K. Sedivec, Benjamin A. Geaumont, Amanda L. Gearhart
Year Published:

This review examines the impact of prescribed fire on the water quality variables (a) sediment load and (b) limiting macronutrients in forested environments globally. We aim to characterize the forested environments subject to prescribed fire, to…
Author(s): Kipling Klimas, Patrick Hiesl, Donald L. Hagan, Dara Park
Year Published:

Homeowners in the Wildland Urban Interface (WUI) are strongly encouraged to protect their property from the risk of damage from forest fires. FireSmart Canada, similar to Firewise used in the United States, and Community Fireguard, Community…
Author(s): Mohamed Ergibi, Hayley Hesseln
Year Published:

Disasters have become increasingly common, calling for the need to more fully understand the impacts of such events. This article presents a scoping review of the psychosocial impacts of wildland fires on children, adolescents and family functioning…
Author(s): Judith C. Kulig, Julia Dabravolskaj
Year Published:

Determining the age of natural conifer regeneration following wildfires is crucial to understanding ecological trajectories and predicting post-fire effects in conifer forests. However, traditional methods of determining seedling age via growth ring…
Author(s): Eva K. Strand, Darcy H. Hammond
Year Published:

Indigenous fire management is experiencing a resurgence worldwide. Northern Australia is the world leader in Indigenous savanna burning, delivering social, cultural, environmental and economic benefits. In 2016, a greenhouse gas abatement fire…
Author(s): Michelle McKemey, Emilie Ens, Yugul Mangi Rangers, Oliver Costello, Nick Reid
Year Published:

Fire exclusion has dramatically altered historically fire adapted forests across western North America. In response, forest managers reduce forest fuels with mechanical thinning and/or prescribed burning to alter fire behavior, with additional…
Author(s): Harold S. Zald, Becky K. Kerns, Michelle A. Day
Year Published:

The fire radiative power (FRP) of active fires (AFs) is routinely assessed with spaceborne sensors. MODIS is commonly used, and its 1 km nadir pixel size provides a minimum per-pixel FRP detection limit of ~5-8 MW, leading to undercounting of AF…
Author(s): Samuel Sperling, Martin J. Wooster, Bruce D. Malamud
Year Published:

One goal of fuels treatments is to limit potential fire behavior by reducing overstory tree density, but this may precipitate regeneration, which contributes to increasing potential fire behavior over time. To understand factors that influence tree…
Author(s): Kathleen Fialko, Seth A. Ex, Brett Wolk
Year Published:

Using observations and model simulations (ESM 4.1) during 1988–2018, we show large year‐to‐year variability in western U.S. PM2.5 pollution caused by regional and distant fires. Widespread wildfires, combined with stagnation, caused summer PM2.5…
Author(s): Yuanyu Xie, Meiyun Lin, Larry W. Horowitz
Year Published:

Background: The Monitoring Trends in Burn Severity (MTBS) program has been providing the fire science community with large fire perimeter and burn severity data for the past 14 years. As of October 2019, 22 969 fires have been mapped by the MTBS…
Author(s): Joshua J. Picotte, Krishna Bhattarai, Danny Howard, Jennifer Lecker, Justin Epting, Brad Quayle, Nathan C. Benson, Kurtis J. Nelson
Year Published:

Aims: Wildfires in dry forest ecosystems in western North America are producing fire effects that are more severe than historical estimates, raising concerns about the resilience of these landscapes to contemporary disturbances. Despite increasing…
Author(s): William M. Downing, Meg A. Krawchuk, Jonathan D. Coop, Garrett W. Meigs, Sandra L. Haire, Ryan B. Walker, Ellen Whitman, Geneva W. Chong, Carol Miller, Claire Tortorelli
Year Published:

Novel combinations of fire regime and forest type are emerging in areas affected by climate change, fire exclusion, and other stressors. Species interactions following wildfire in these areas are not well understood. In Sierra Nevada mixed‐conifer…
Author(s): Carmen L. Tubbesing, Robert A. York, Scott L. Stephens, John J. Battles
Year Published:

The Great Basin can be defined floristically by plant communities dominated by species of sagebrush (Artemisia) and saltbush (Atriplex) in its southern portions and in its northern portions by sagebrush steppe and woodlands dominated by juniper (…
Author(s): Pamela E. Padgett
Year Published: