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Ecosystem

Displaying 1321 - 1340 of 5894 results

Fire severity assessment is crucial for predicting ecosystem response and prioritizing post-fire forest management strategies. Although a variety of remote sensing approaches have been developed, more research is still needed to improve the accuracy…
Author(s): Raquel Montorio Llovería, Fernando Pérez-Cabello, Daniel Borini Alves, Alberto García-Martín
Year Published:

Complex, reciprocal interactions among climate, disturbance, and vegetation dramatically alter spatial landscape patterns and influence ecosystem dynamics. As climate and disturbance regimes shift, historical analogs and past empirical studies may…
Author(s): Rachel A. Loehman, Robert E. Keane, Lisa M. Holsinger
Year Published:

Field measurements of surface dead fine fuel moisture content (FFMC) are integral to wildfire management, but conventional measurement techniques are limited. Automated fuel sticks offer a potential solution, providing a standardised, continuous and…
Author(s): Jane G. Cawson, Petter Nyman, Christian Schunk, Gary J. Sheridan, Thomas J. Duff, Kelsy E. Gibos, William D. Bovill, Marco Conedera, Gianni B. Pezzatti, Annette Menzel
Year Published:

The simultaneous occurrence of wildfire can hinder firefighting effectiveness via multiple mechanisms that might explain historical resource demand trends. We validate this hypothesis by using data from the Monitoring Trends in Burn Severity (MTBS)…
Author(s): Harry Podschwit, Alison Cullen
Year Published:

Over the last decades, the different issues regarding the expansion of the wildland-urban interface (WUI) - particularly those related to fires - have spread around the world with particular exposure in the USA, Canada, Australia, and, more recently…
Author(s): A. Bento-Gonçalves, A. Vieira
Year Published:

A new global sensitivity analysis has been conducted of fuel-type-dependent input variables of the simplified physical fire spread model (PhyFire) to understand how the use of spatial averages, that is, fuel models, influences the results of PhyFire…
Author(s): María Isabel Asensio-Sevilla, M. Teresa Santos-Martín, David Álvarez-León, Luis Ferragut-Canals
Year Published:

Fire-stimulated flowering and fire-stimulated resprouting are associated traits common in plants that evolved in fire-prone habitats, e.g., Vellozia pyrantha, an iconic plant that has economic potential and is endemic to a fully protected area. By…
Author(s): Bárbara Paula dos Santos Borges, Andressa Priscila Piancó Santos Lima, Alone Lima-Brito, José Raniere Ferreira de Santana, Abel Augusto Conceição
Year Published:

Wildfire detection is a time-critical application as the difficulty to pinpoint ignition locations in a short time-frame often leads to the escalation of the severity of fire events. This problem has motivated considerable interest from expert…
Author(s): Maria João Sousa, Alexandra Moutinho, Miguel Almeida
Year Published:

Nearly a century of fire suppression in most forested land of the United States has limited researchers’ ability to construct and rigorously test conceptual models of forest structural development in mixed-conifer ecosystems. As a result, land…
Author(s): Julia Berkey, R. Travis Belote, Colin T. Maher, Andrew J. Larson
Year Published:

The first few years of the 21st century brought a series of unprecedented natural disturbances to the southwestern U.S. A severe drought, later tagged as a “global change type drought,” triggered the mortality of 1,000 of native trees. For some…
Author(s): Carolyn Hull Sieg, Rodman Linn, F. Pimont, Chad M. Hoffman, Joel D. McMillin, Judith Winterkamp, L. Scott Baggett
Year Published:

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:

After a more than a century of fighting to keep fire out of forests, reintroducing it is now an important management goal. Yet changes over the past century have left prescribed burning with a big job to do. Development, wildfire suppression, rising…
Author(s): Sylvia Kantor, Becky K. Kerns, Michelle A. Day
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:

Fuels are highly variable and dynamic in space and time, and fuel loading can vary considerably even within fine spatial scales and within specific fuel types, such as downed wood or organic soils. Given this inherent variability in fuel loadings,…
Author(s): Nancy H. F. French, Michael Billmire, Susan J. Prichard, Maureen C. Kennedy, Donald McKenzie, Narasimhan K. Larkin, Roger D. Ottmar
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:

This FEIS species review synthesizes information on the relationship of Atriplex gardneri (Gardner's saltbush) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Janet L. Fryer
Year Published:

Fire is a powerful ecological and evolutionary force. Animals that modify drivers of fire behaviour could therefore have far-reaching effects on ecosystems. Yet, with a few notable exceptions, effects of animals on fire have been often overlooked.…
Author(s): Claire N. Foster, Sam C. Banks, Geoffrey J. Cary, Christopher N. Johnson, David B. Lindenmayer, Leonie E. Valentine
Year Published:

Forested fire refugia (trees that survive fires) are important disturbance legacies that provide seed sources for post-fire regeneration. Conifer regeneration has been limited following some recent western fires, particularly in ponderosa pine (…
Author(s): Teresa B. Chapman, Tania L. Schoennagel, Thomas T. Veblen, Kyle Rodman
Year Published:

Much distortion about the real role of fire in different ecosystems exists, mostly because fire events attract media attention, usually focusing on the negative aspects of fire. In the perception of the general public, fire events are usually linked…
Author(s): Alessandra Fidelis
Year Published:

Nine multipurpose silvicultural treatments, formulated as a synthesis of recently implemented prescriptions offered by forest managers, were simulated to evaluate their effectiveness at enhancing fire resistance. The Forest Vegetation Simulator was…
Author(s): Theresa B. Jain, Jeremy S. Fried, Sara Loreno
Year Published: