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Displaying 1381 - 1400 of 5651

Pacific salmon spawning and rearing habitats result from dynamic interactions among geomorphic processes, natural disturbances, and hydro‐climatological factors acting across a range of spatial and temporal scales. We used a 21‐year record of redd…
Author(s): Gregory R. Jacobs, Russell F. Thurow, John M. Buffington, Daniel J. Isaak, Seth J. Wenger
Year Published:

To inform future restoration efforts, we reviewed the known effects of fire and habitat management and restoration on hummingbirds in four key habitat types in North America. We examined seven species that most commonly occur west of the Rocky…
Author(s): John D. Alexander, Elizabeth Williams, Caitlyn R. Gillespie, Sarahy Contreras-Martínez, Deborah M. Finch
Year Published:

A new burner is presented, designed to generate laminar and axisymmetric diffusion flames from wildland fuels. This burner consists of a porous sample holder where wildland fuel elements are deposited. The sample holder is mounted on a cylindrical…
Author(s): G. Severino, A. Cabrera, J. Contreras, P. Pinto, J.J. Cruz, A. Fuentes
Year Published:

California’s high density, fire-excluded forests experienced an extreme drought accompanied by warmer than normal temperatures from 2012 to 2015, resulting in the deaths of millions of trees. We examined tree mortality and growth of mixed-conifer…
Author(s): Eric E. Knapp, Alexis Bernal, Jeffrey M. Kane, Christopher J. Fettig, Malcolm P. North
Year Published:

Over the past several decades, the impacts of climate change have threatened the health and functioning of forested ecosystems on a global scale. Warming and drying trends have altered disturbance regimes and have created significant uncertainty…
Author(s): Zoe Schapira, Camille Stevens-Rumann
Year Published:

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:

Fires shape the biogeochemistry and functioning of many ecosystems, and fire frequencies are changing across much of the globe. Frequent fires can change soil carbon (C) and nitrogen (N) storage by altering the quantity and chemistry of plant inputs…
Author(s): Adam F. A. Pellegrini, Sarah E. Hobbie, Peter B. Reich, Ari A. Jumpponen, E.N. Jack Brookshire, Anthony C. Caprio, Corli Coetsee, Robert B. Jackson
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In arid and semiarid ecosystems, invasion by exotic grasses may be driving state changes in vegetation defined by losses of native shrub communities. Changes in wildfire regimes and fall precipitation timing related to climate change may promote…
Author(s): Tara B. B. Bishop, Baylie C. Nusink, Rebecca Lee Molinari, Justin B. Taylor, Samuel B. St. Clair
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:

Wildfires are exorbitantly cataclysmic disasters that lead to the destruction of forest cover, wildlife, land resources, human assets, reduced soil fertility and global warming. Every year wildfires wreck havoc across the globe. Therefore, there is…
Author(s): Harkiran Kaur, Sandeep K. Sood
Year Published:

Runoff increases after wildfires that burn vegetation and create a condition of soil-water repellence (SWR). A new post-fire watershed hydrological model, PFHydro, was created to explicitly simulate vegetation interception and SWR effects for four…
Author(s): Jun Wang, Michelle A. Stern, Vanessa M. King, Charles N. Alpers, Nigel W.T. Quinn, Alan L. Flint, Lorraine E. Flint
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:

Abrupt changes in wind direction and speed can dramatically impact wildfire development and spread. Most importantly, such changes can pose significant problems to firefighting efforts and have resulted in a number of fire fatalities over the years…
Author(s): Jordan G. Powers, Jim Bresch, Craig S. Schwartz, Janice L. Coen, Ryan A. Sobash
Year Published:

To improve access and understanding of postfire resources, scientists with the Rocky Mountain Research Station and its partners have drawn on years of science/management collaboration to compile an online resource called the After Fire Toolkit and…
Author(s): Brian Cooke
Year Published:

Climate change is transforming forest structure and function by altering the timing, frequency, intensity, and spatial extent of episodic disturbances. Wildland fire regimes in western U.S. coniferous forests are now characterized by longer fire…
Author(s): Elizabeth R. Pansing, Diana F. Tomback, Michael B. Wunder
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:

With the effects of climate change expected to intensify over the coming century, land managers will require more proactive and novel approaches to conserve and restore threatened ecosystems. In the US Intermountain West, quaking aspen (Populus…
Author(s): Alexander A. Howe, Simon M. Landhäusser, Owen T. Burney, James N. Long, Randall D. Violett, Karen Mock
Year Published:

Smouldering peat fires are reported across continents and their emissions result in regional haze crisis (large scale accumulation of smoke at low altitudes) and large carbon foot prints. Inorganic content (IC) and bulk density vary naturally in…
Author(s): Yuqi Hu, Wuquan Cui, Guillermo Rein
Year Published:

Wildfire events have been impacting many parts of the United States. Of particular importance are the Wildland-Urban Interface (WUI) areas, where residential development exposes residents to increased risk from the threat of wildfire. However,…
Author(s): Benjamin Ghasemi, Gerard T. Kyle, James D. Absher
Year Published:

The practice of “cyanobacterization” (soil inoculation with cyanobacteria) has been shown to be effective in increasing soil fertility and physical stability in natural and agricultural soils, but little is known about its utility for the recovery…
Author(s): Sonia Chamizo, Alessandra Adessi, Giacomo Certini, Roberto De Philippis
Year Published: