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Ecosystem

Displaying 2741 - 2760 of 6066 results

The wildland-urban interface (WUI) is the area where houses and wildland vegetation meet or intermingle, and where wildfire problems are most pronounced. Here we report that the WUI in the United States grew rapidly from 1990 to 2010 in terms of…
Author(s): Volker C. Radeloff, David P. Helmers, Heather A. Kramer, Miranda H. Mockrin, Patricia M. Alexandre, Avi Bar-Massada, Van Butsic, Todd J. Hawbaker, Sebastian Martinuzzi, Alexandra D. Syphard, Susan I. Stewart
Year Published:

Fast-moving wildfires can result in substantial losses of infrastructure, property and life. During such events, real-time intelligence is critical for managing firefighting activities and public safety. The ability of fixed-site weather radars to…
Author(s): Thomas J. Duff, Derek M. Chong, Trent D. Penman
Year Published:

Introduction: The objective of this study was to document characteristics of hiking during wildland firefighter (WLFF) training and wildfire suppression. For the first time, the overall physical demands during wildland firefighting were evaluated in…
Author(s): Joseph A. Sol, Brent Ruby, Steven E. Gaskill, Charles L. Dumke, Joseph W. Domitrovich
Year Published:

Silvicultural thinning treatments to restore whitebark pine (Pinus albicaulis) are widely used in subalpine forests throughout the western United States (US) and Canada. The objectives of these treatments are to (1) improve the condition of…
Author(s): Colin T. Maher, Cara R. Nelson, Andrew J. Larson, Anna Sala
Year Published:

Each year wildland fires kill and injure trees on millions of forested hectares globally, affecting plant and animal biodiversity, carbon storage, hydrologic processes, and ecosystem services. The underlying mechanisms of fire-caused tree mortality…
Author(s): Sharon M. Hood, J. Morgan Varner, Phillip J. van Mantgem, C. Alina Cansler
Year Published:

The most direct way of deciphering the dynamics of an ecosystem is to examine its biotic and abiotic components based on analysis of living and dead organisms distributed above ground. The surface analysis method presented here provides a centennial…
Author(s): Vanessa Pilon, Serge Payette, Pierre-Luc Couillard, Jason Laflamme
Year Published:

Vertical greenery systems (VGS) are getting popular as a green cladding material. However, they have not been adequately assessed in terms of fire safety. Lack of maintenance and improper irrigation systems will cause drying of plants in VGS,…
Author(s): Kalani C. Dahanayake, Cheuk Lun Chow
Year Published:

High-severity, infrequent fires in forests shape landscape mosaics of stand age and structure for decades to centuries, and forest structure can vary substantially even among same-aged stands. This variability among stand structures can affect…
Author(s): Kristin H. Braziunas, Winslow D. Hansen, Rupert Seidl, Werner Rammer, Monica G. Turner
Year Published:

With fuel moisture content and slope, wind velocity (UW) is one of the major physical parameters that most affects the behaviour of wildland fires. The aim of this short paper was to revisit the relationship between the rate of spread (ROS) and the…
Author(s): D. Morvan, N. Frangieh
Year Published:

Wildland fire science literacy is the capacity for wildland fire professionals to understand and communicate three aspects of wildland fire: (1) the fundamentals of fuels and fire behavior, (2) the concept of fire as an ecological regime, and (3)…
Author(s): Devan A. McGranahan, Carissa L. Wonkka
Year Published:

Managers masticate fuels to reduce extreme fire hazards, but the impact on fire behavior within the resulting compact fuelbeds is poorly understood. We burned 54 laboratory-based fuelbeds one and two growing seasons after mastication and 75…
Author(s): Penelope Morgan, Alistair M. S. Smith, Robert F. Keefe
Year Published:

Erosion is one of the primary land management concerns following wildfire. This study examines controls on post-fire hillslope-scale erosion for the 2012 High Park Fire in northern Colorado, develops simple empirical models for predicting post-fire…
Author(s): Sarah R. Schmeer, Stephanie Kampf, Lee H. MacDonald, Josh Hewitt, Codie Wilson
Year Published:

Large, high-severity wildfires alter the physical and biological conditions that determine how catchments retain and release nutrients and regulate streamwater quality. The short-term water quality impacts of severe wildfire are often dramatic, but…
Author(s): Charles C. Rhoades, Alex T. Chow, Tim Covino, Timothy S. Fegel, Derek N. Pierson, Allison E. Rhea
Year Published:

We are conducting a project investigating policies that limit managers' ability to conduct prescribed fire on US Forest Service and Bureau of Land Management (BLM) lands in the 11 Western states. The goals for this phase of our work were to…
Author(s): Courtney Schultz, Heidi Huber-Stearns, Sarah M. McCaffrey, Douglas Quirke, Gwen Ricco, Cassandra Moseley
Year Published:

Fire is a dominant, and well-studied, structuring force in many temperate and semi-arid communities; yet, few studies have investigated the effects of fire on multi-trophic interactions. Here, we ask how fire-induced changes in flowering affect the…
Author(s): John M. Mola, Neal M. Williams
Year Published:

Setting suitable conservation targets is an important part of ecological fire planning. Growth-stage optimisation (GSO) determines the relative proportions of post-fire growth stages (categorical representations of time since fire) that maximise…
Author(s): Matthew Swan, Holly Sitters, Jane G. Cawson, Thomas J. Duff, Yohannes Wibisono, Alan York
Year Published:

Wildfires are a common phenomenon on most continents. They have occurred for an estimated 60 million years and are part of a regular climatic cycle. Nevertheless, wildfires represent a real and continuing problem that can have a major impact on…
Author(s): Dmytro Matsypura, Oleg A. Prokopyev, Aizat Zahar
Year Published:

In western North America ectomycorrhizal fungi are critical to establishment of conifers in low nitrogen soils. Fire can affect both ectomycorrhizal fungi and soil properties, and inoculation with ectomycorrhizal fungi is recommended when planting…
Author(s): Martha L. Jenkins, Cathy L. Cripps, Leslie Gains-Germain
Year Published:

Forest resilience to climate change is a global concern given the potential effects of increased disturbance activity, warming temperatures and increased moisture stress on plants. We used a multi-regional dataset of 1485 sites across 52 wildfires…
Author(s): Camille Stevens-Rumann, Kerry Kemp, Philip E. Higuera, Brian J. Harvey, Monica T. Rother, Daniel C. Donato, Penelope Morgan, Thomas T. Veblen
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Reestablishment of perennial vegetation is often needed after wildfires to limit exotic species and restore ecosystem services. However, there is growing body of evidence that questions if seeding after wildfires increases perennial vegetation and…
Author(s): Kirk W. Davies, Jonathan D. Bates, Chad S. Boyd
Year Published: