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Ecosystem

Displaying 901 - 920 of 5894 results

Projected warming of global surface air temperatures will further exacerbate droughts, wildfires, and other agents of ecosystem stress. We use latewood blue intensity from high‐elevation Picea engelmannii to reconstruct late‐summer maximum air…
Author(s): Karen J. Heeter, Maegen L. Rochner, Grant Harley
Year Published:

Questions: Relative to a landscape with a mosaic of two sagebrush community types and increasing fire frequency, we asked: 1) Do vegetation characteristics vary significantly with number of times burned for each sagebrush community? 2) How do…
Author(s): Douglas J. Shinneman, Susan K. McIlroy, Marie-Anne de Graaff
Year Published:

Increased frequency and new types of disturbances caused by global change calls for deepened insights into possible alterations of successional pathways. Despite current interest in disturbance interactions there is a striking lack of studies…
Author(s): Lena Gustafsson, Victor Johansson, Alexandro B. Leverkus, Joachim Strengbom, Sofie Wikberg, Gustaf Granath
Year Published:

In response to large, severe wildfires across the western US, federal initiatives have been enacted to increase the pace, scale, and quality of ecological restoration in fire dependent forests. To address uncertainty and controversy in agreement…
Author(s): Kevin J. Barrett, Jeffery B. Cannon, Alex M. Schuetter, Anthony S. Cheng
Year Published:

As wildfires in the western United States continue to increase in size and number due to historical fire suppression and climate change, it is imperative for people living in fire-prone areas to “live with fire.” Fire suppression efforts are…
Author(s): Aaron M. Whittemore
Year Published:

Tree mortality associated with drought and concurrent bark beetle outbreaks is expected to increase with further climate change.When these two types of disturbance occur in concert it complicates our ability to accurately predict future forest…
Author(s): Charlotte C. Reed, Sharon M. Hood
Year Published:

Climate change in concert with fire suppression is increasing the size, severity and frequency of fires globally. At the same time, insects, an exceptionally biodiverse group that provide essential ecosystem services such as pollination and…
Author(s): Stephen C. Mason Jr., Vaughn Shirey, Lauren C. Ponisio, Jon K. Gelhaus
Year Published:

Firebrands are a widely observed phenomenon in wildland fires, which can transport for a long distance, cause spot ignition in the wildland–urban interface (WUI) and increase the rate of wildfire spread. The flame attached to a moving firebrand…
Author(s): Caiyi Xiong, Yanhui Liu, Cangsu Xu, Xinyan Huang
Year Published:

Extreme wildfires are increasing in frequency globally, prompting new efforts to mitigate risk. The ecological appropriateness of risk mitigation strategies, however, depends on what factors are driving these increases. While regional syntheses…
Author(s): Erin J. Hanan, Jianning Ren, Christina Tague, Crystal A. Kolden, John T. Abatzoglou, Ryan R. Bart, Maureen C. Kennedy, Mingliang Liu, Jennifer C. Adam
Year Published:

The National Cohesive Wildland Fire Management Strategy (hereafter: Cohesive Strategy) mandates the restoration and maintenance of landscapes, with the goal that “landscapes across all jurisdictions are resilient to fire-related disturbances in…
Author(s): Sharon M. Hood, Donald A. Falk, Martin Nie
Year Published:

The main purpose of this study was to characterise the thermal environment and risk of heat burns of wildland firefighters in relation to the suppression tasks performed in real wildland fires. Measurements of air temperature and heat flux were…
Author(s): Belén Carballo-Leyenda, José G. Villa, Jorge López-Satué, Jose A. Rodríguez-Marroyo
Year Published:

As wildland fires amplify in size in many regions in the western USA, land and water managers are increasingly concerned about the deleterious effects on drinking water supplies. Consequences of severe wildfires include disturbed soils and areas of…
Author(s): Sarah A. Lewis, Peter R. Robichaud, Andrew T. Hudak, Eva K. Strand, Jan U. H. Eitel, Robert E. Brown
Year Published:

A key challenge in the United States is how to manage wildfire risk across boundaries and scales, as roles, responsibilities, and ability to act are distributed among actors in ways that do not always incentivize collective action. In this review…
Author(s): Emily Jane Davis, Heidi Huber-Stearns, Anthony S. Cheng, Meredith Jacobson
Year Published:

We appreciate Hutto’s call to promote positive ecological outcomes by recognizing diverse forest fire ecologies. Nevertheless, we continue to argue that restoration treatments are appropriate in the approximately 17 million ha of forest in the…
Author(s): Scott L. Stephens, Anthony L. Westerling, Matthew D. Hurteau, M. Zachariah Perry, Courtney Schultz, Sally Thompson
Year Published:

Wildfire activity in the western United States has been increasing since the 1970s, with many fires occurring on land managed by government agencies. Over six million acres of public lands are surrounded by private land and lack road access, making…
Author(s): Bryan Leonard, Andrew J. Plantinga, Matthew J. Wibbenmeyer
Year Published:

Recent increases in destructive wildfires are driving a need for empirical research documenting factors that contribute to structure loss. Existing studies show that fire risk is complex and varies geographically, and the role of vegetation has been…
Author(s): Alexandra D. Syphard, Heather Rustigian-Romsos, Jon E. Keeley
Year Published:

The advancement of three-dimensional, time-dependent fire behaviour models is best supported by publicly available, co-located, synchronised, quality-assured measures of pre-fire, active fire and post-fire conditions (i.e. integrated datasets).…
Author(s): Derek McNamara, William E. Mell
Year Published:

Great Basin shrublands in the United States are rapidly converting to annual grass- dominated ecosystems, driven primarily by increased wildfire activity. Post-fire vegetation recovery trajectories vary spatially and temporally and are influenced by…
Author(s): Jody Vogeler, Eric Jensen, Beth A. Newingham
Year Published:

Ventenata (Ventenata dubia L.) is an invasive annual grass that has rapidly expanded its range across temperate grassland and shrub-steppe ecosystems in western North America. However, there is little published regarding its ecology, especially its…
Author(s): Luke W. Ridder, JoAnna M. Perren, Lesley R. Morris, Bryan A. Endress, Robert V. Taylor, Bridgett J. Naylor
Year Published:

This FEIS species review synthesizes information on the relationship of Rubus laciniatus (cutleaf blackberry) to fire--how fire affects the species and its habitat, invasiveness of the species, and fire management considerations. Information is also…
Author(s): Janet L. Fryer
Year Published: