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Ecosystem

Displaying 2281 - 2300 of 6051 results

Forest fires and their legacy form an inherently dynamic relationship between ecology and human uses of the forest. This paper provides an overview of the dynamic dimensions that are present in the aftermath of a fire. These include the evolution of…
Author(s): Jeffrey Englin
Year Published:

Numerical simulations of laboratory-scale experiments, with no wind imposed, were performed for fuel bed slopes ranging from 0° to 45°. The implementation of a vertical symmetry plane (SP) placed, span-wise, along the middle of the computational…
Author(s): X. Sánchez-Monroy, William E. Mell, J. Torres-Arenas, Bret W. Butler
Year Published:

The Earth has experienced large changes in global and regional climates over the past one million years. Understanding processes and feedbacks that control those past environmental changes is of great interest for better understanding the nature,…
Author(s): Anne Laure Daniau, Stéphanie Desprat, Julie C. Aleman, Laurent Bremond, Basil A. S. Davis, William Fletcher, Jennifer R. Marlon, Laurent Marquer, Vincent Montade, César Morales-Molino, Filipa Naughton, Damien Rius, Dunia H. Urrego
Year Published:

The aim of this study was to determine the effects of burn severity on soil properties (chemical, biochemical and microbiological) in fire-prone pine ecosystems three years after fire. To achieve these goals, we selected two large wildfires that…
Author(s): Víctor Fernández-García, Jessica R. Miesel, Manuel Jaime Baeza, Elena Marcos, Leonor Calvo
Year Published:

The combination of direct human influences and the effects of climate change are resulting in altered ecological disturbance regimes, and this is especially the case for wildfires. Many regions that historically experienced low–moderate severity…
Author(s): Clark Richter, Marcel Rejmánek, Jesse E. D. Miller, Kevin R. Welch, JonahMaria Weeks, Hugh Safford
Year Published:

Improving predictions of restoration outcomes is increasingly important to resource managers for accountability and adaptive management, yet there is limited guidance for selecting a predictive model from the multitude available. The goal of this…
Author(s): David M Barnard, Matthew J. Germino, David S. Pilliod, Robert S. Arkle, Cara Applestein, Bill E. Davidson, Matthew R. Fisk
Year Published:

Soil compaction during post-fire logging can increase runoff and erosion. Increasing surface cover is an effective way to reduce erosion, but this has not been tested on soils impacted by both fire and compaction. We measured the effects of…
Author(s): Sergio A. Prats, Maruxa C. Malvar, Celeste O.A. Coelho, Joseph W. Wagenbrenner
Year Published:

Mobile Ad-Hoc Network (MANET) is a type of structure-less wireless mobile network, in which each node plays the role of the router and host at the same time. MANET has gained increased interest from researchers and developers for various…
Author(s): Fahad Taha AL-Dhief, Naseer Sabri, S. Fouad, N.M. Abdul Latiff, Musatafa Abbas Abbood Albader
Year Published:

Wildfires drive global biodiversity patterns and affect plant–pollinator interactions, and are expected to become more frequent and severe under climate change. Post‐fire plant communities often have increased floral abundance and diversity, but the…
Author(s): Paula Banza, Callum J. Macgregor, Anabela D. F. Belo, Richard Fox, Michael J. O. Pocock, Darren M. Evans
Year Published:

In rangeland ecosystems, invasive annual grass replacement of native perennials is associated with higher fire risk. Large bunchgrasses are often seeded to reduce cover of annuals such as Bromus tectorum L. (cheatgrass), but there is limited…
Author(s): Steven O. Link, Randal W. Hill, Sheel Bansal
Year Published:

Wildland fire and ecological researchers use empirical and semi-empirical modeling systems to assess fire behavior and danger. This technical note describes the firebehavioR package, a porting of two fire behavior modeling systems, Crown Fire…
Author(s): Justin P. Ziegler, Chad M. Hoffman, William E. Mell
Year Published:

Habitat use of bats may shift following population-level impacts of white-nose syndrome (WNS). Specifically, the effect of WNS across forest landscapes is unclear in relation to prescribed fire. Mammoth Cave National Park (MACA) has employed a…
Author(s): Luke E. Dodd, Matthew B. Dickinson, Michael J. Lacki, Lynne K. Rieske, Nick Skowronski, Steven C. Thomas, Rickard S. Toomey III
Year Published:

The principal aim of this project was to project changes in fuels, fire dynamics, and associated responses of vegetation and breeding birds that might inform selection and prioritization of management actions in the Great Basin. Our original six…
Author(s): Erica Fleishman, Jennifer Balch, Bethany A. Bradley, Ned Horning, Matthias Leu
Year Published:

Recent shifts in global forest area highlight the importance of understanding the causes and consequences of forest change. To examine the influence of several potential drivers of forest cover change, we used supervised classifications of…
Author(s): Kyle Rodman, Thomas T. Veblen, Sara Saraceni, Teresa B. Chapman
Year Published:

Ensemble transform Kalman filter (ETKF) is an extension of ensemble Kalman filter (EnKF), which avoids using 'perturbed observations' to eliminate additional sampling errors. This paper demonstrates the capability of ETKF algorithm for sequentially…
Author(s): Tengjiao Zhou, Long Ding, Jie Ji, Lin Li, Weiwei Huang
Year Published:

Wildfire is an essential earth‐system process, impacting ecosystem processes and the carbon cycle. Forest fires are becoming more frequent and severe, yet gaps exist in the modeling of fire on vegetation and carbon dynamics. Strategies for reducing…
Author(s): Jeffrey E. Stenzel, Kristina J. Bartowitz, Melannie D. Hartman, James A. Lutz, Crystal A. Kolden, Alistair M. S. Smith, Beverly E. Law, Mark E. Swanson, Andrew J. Larson, William J. Parton, Tara W. Hudiburg
Year Published:

In this paper, we describe the international activities that FAO has undertaken with partners over the years and then reflect on the role of international relations in reducing wildfire impacts on ecosystem services. FAO has long had a focus on…
Author(s): Pieter van Lierop, Peter F. Moore
Year Published:

The two-part Science Framework for Conservation and Restoration of the Sagebrush Biome published by the U.S. Forest Service Rocky Mountain Research Station is a new, multi-scale approach to management of sagebrush ecosystems. The product of an…
Author(s): Susan Miller
Year Published:

In grassy ecosystems of south‐eastern Australia, fire maintains richness of native forbs. It is commonly thought that fire promotes regeneration indirectly by reducing competition for light and providing gaps for recruitment, rather than directly…
Author(s): Joshua A. Hodges, Jodi N. Price, Dale G. Nimmo, Lydia K. Guja
Year Published:

Forest ecosystems are subject to recurring fires as one of their most significant disturbances. Accurate mapping of burn severity is crucial for post-fire land management and vegetation regeneration monitoring. Remote-sensing-based monitoring of…
Author(s): Yinan HE, Gang Chen, Angela De Santis, Dar A. Roberts, Yuyu Zhou, Ross K. Meentemeyer
Year Published: