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Ecosystem

Displaying 1061 - 1080 of 5953 results

Questions: Invasive‐plant treatments often target a single or few species, but many landscapes are diversely invaded. Exotic annual grasses (EAGs) increase wildfires and degrade native perennial plant communities in cold‐desert rangelands, and…
Author(s): Brynne E. Lazarus, Matthew J. Germino
Year Published:

Wildfires were a frequent source of disturbance in forests of the Western United States prior to Euro-American settlement. Following a series of catastrophic wildfires in the Northern Rockies in 1910, the U.S. Forest Service adopted a broad wildfire…
Author(s): Andrea Watts, Frederick C. Meinzer, Thomas A. Spies, Andrew G. Merschel, Steven L. Voelker
Year Published:

Question: Reliable estimates of understory (non-tree) plant cover following fire are essential to assess early forest community recovery. Photographic digital image analysis (DIA) is frequently used in seral, single-strata vegetation, given its…
Author(s): Brandi E. Wheeler, Andrew J. Andrade, Elizabeth R. Pansing, Diana F. Tomback
Year Published:

Wildfires are a critical phenomenon in terrestrial ecosystems, and the intensity and frequency of these events have increased in recent years. High temperatures in the topsoil during wildfires can induce changes in soil physical, chemical, and…
Author(s): Sebastián A. Aedo, Carlos A. Bonilla
Year Published:

Wildland fire management across the US is under intense scrutiny as it faces challenges of extreme wildfire seasons, a warming climate and increasing pressures on natural resources. As he ends his term as President of the Student Association for…
Author(s): Lars Filson
Year Published:

Fire-prone dry forests often face increasing fires from climate change with low resistance and resilience due to logging of large, old fire-resistant trees. Their restoration across large landscapes is constrained by limited mature trees, physical…
Author(s): William L. Baker
Year Published:

Fires, among other forms of natural and anthropogenic disturbance, play a central role in regulating the location, composition and biomass of forests. Understanding the role of fire in global forest loss is crucial in constraining land‐use change…
Author(s): Dave van Wees, Guido R. Van der Werf, James T. Randerson, Niels Andela, Yang Chen, Douglas C. Morton
Year Published:

Complexity is the main feature of many fire-prone environments, in which the fire regime is driven by climate and socio-economic development on short and long timescales. In this study, the interaction between social and forest environments is…
Author(s): Nadia Ursino
Year Published:

Traditional fire smoke detection methods mostly rely on manual algorithm extraction and sensor detection; however, these methods are slow and expensive to achieve discrimination. We proposed an improved convolutional neural network (CNN) to achieve…
Author(s): Xiaofang Sun, Liping Sun, Yinglai Huang
Year Published:

Aim: Pyrodiversity is the spatial or temporal variability in fire effects across a land- scape. Multiple ecological hypotheses, when applied to the context of post- fire sys- tems, suggest that high pyrodiversity will lead to high biodiversity. This…
Author(s): Gavin M. Jones, Morgan W. Tingley
Year Published:

The globe is struggling with concurrent planetary health emergencies: COVID-19 and wildfires worsened by human activity. Unfortunately, a lack of awareness of climate change as a health issue, as well as of the interconnections between biodiversity…
Author(s): Attila J. Hertelendy, Courtney Howard, Roberto de Almeida, Kate Charlesworth, Lwando Maki
Year Published:

Wildfire behavior predictions typically suffer from significant uncertainty. However, wildfire modeling uncertainties remain largely unquantified in the literature, mainly due to computing constraints. New multifidelity techniques provide a…
Author(s): M.M. Valero, Lluís Jofre, Ricardo Torres
Year Published:

Understanding tree physiological responses to fire is needed to accurately model post‐fire carbon processes and inform management decisions. Given trees can die immediately or at extended time periods after fire, we combined two experiments to…
Author(s): Raquel Partelli Feltrin, Alistair M. S. Smith, Henry D. Adams, Crystal A. Kolden, Daniel M. Johnson
Year Published:

Forest landscapes across western North America (wNA) have experienced extensive changes over the last two centuries, while climatic warming has become a global reality over the last 4 decades. Resulting interactions between historical increases in…
Author(s): Paul F. Hessburg, Susan J. Prichard, R. Keala Hagmann, Nicholas A. Povak, Frank K. Lake
Year Published:

Forest fires are a well-known source of polycyclic aromatic hydrocarbons (PAHs), playing an important role on their formation and redistribution across the terrestrial and aquatic compartments. Fire-induced inputs of PAHs to the environment are of…
Author(s): Isabel Campos, Nelson Abrantes
Year Published:

Regeneration is an essential demographic step that affects plant population persistence, recovery after disturbances, and potential migration to track suitable climate conditions. Challenges of restoring big sagebrush (Artemisia tridentata) after…
Author(s): Daniel Schlaepfer, John Bradford, William Lauenroth, Robert K. Shriver
Year Published:

Post‐fire shifts in vegetation composition will have broad ecological impacts. However, information characterizing post‐fire recovery patterns and their drivers are lacking over large spatial extents. In this analysis we used Landsat imagery…
Author(s): Melanie K. Vanderhoof, Todd J. Hawbaker, Andrea Ku, Kyle E. Merriam, Erin Berryman, Megan E. Cattau
Year Published:

Highlights: A review of active fire remote sensing using EO satellites is presented. Different approaches for fire detection and characterization are compared and contrasted. Main satellite active fire products and their applications are summarised…
Author(s): Martin J. Wooster, Gareth Roberts, Louis Giglio, David P. Roy, Patrick H. Freeborn, Luigi Boschetti, Christopher O. Justice, Charles Ichoku, Wilfrid Schroeder, Diane Davies, Alistair M. S. Smith, Alberto Setzer, Ivan A. Csiszar, Tercia Strydom, Philip Frost, Tianran Zhang, Weidong Xu, Mark C. de Jong, Joshua M. Johnston, Luke Ellison, Krishna P. Vadrevu, Jessica L. McCarty, Veerachai Tanpipat, Christopher Schmidt, Jesus San-Miguel-Ayanz
Year Published:

A key pursuit in contemporary ecology is to differentiate regime shifts that are truly irreversible from those that are hysteretic. Many ecological regime shifts have been labeled as irreversible without exploring the full range of variability in…
Author(s): Christine H. Bielski, Rheinhardt Scholtz, Victoria M. Donovan, Craig R. Allen, Dirac Twidwell
Year Published:

Runoff and erosion processes can increase after wildfire and post‐fire salvage logging, but little is known about the specific effects of soil compaction and surface cover after post‐fire salvage logging activities on these processes. We carried out…
Author(s): Sergio A. Prats, Maruxa C. Malvar, Joseph W. Wagenbrenner
Year Published: