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Ecosystem

Displaying 1021 - 1040 of 6067 results

Although ecological disturbances can have a strong influence on pollinators through changes in habitat, virtually no studies have quantified how characteristics of wildfire influence the demography of essential pollinators. Nevertheless, evaluating…
Author(s): Sara M. Galbraith, James H. Cane, James W. Rivers
Year Published:

The Rothermel fire spread model provides the scientific basis for the US National Fire Danger Rating System(NFDRS) and several other important fire management applications. This study proposes a new perspective of the model that partitions the…
Author(s): Francis M. Fujioka, David R. Weise, Shyh-Chin Chen, Seung Hee Kim, Menas C. Kafatos
Year Published:

Forest fire is a commonly occurring phenomenon in all ecosystems around the world. It has numerous short- and long-term effects on the ecosystem. Intensive research has made it easy for one to analyze the changes made in the soil system. However,…
Author(s): Rahul Datta
Year Published:

Elevated fuel loads represent a wildfire hazard in a landscape. Reducing fuel load is one mitigation strategy commonly employed to decrease the severity and impact of wildfires. The planning of such fuel management operations, however, represents a…
Author(s): Federico Liberatore, Javier Leon, John W. Hearne, Begoña Vitoriano
Year Published:

Indigenous communities in the Pacific West of North America have long depended on fire to steward their environments, and they are increasingly asserting the importance of cultural burning to achieve goals for ecological and social restoration. We…
Author(s): Jonathan Long, Frank K. Lake, Ron Goode
Year Published:

Forested ecosystems cover nearly one-third of Earth’s land surface and can perform an essential function as one of the globe’s largest terrestrial carbon sinks, absorbing more carbon than they release, lowering the concentration of carbon dioxide in…
Author(s): Alex W. Kirkpatrick
Year Published:

Stephens et al. (2020) do an excellent job of encouraging us to sharpen our focus on the ecological consequences of forest and fire management activities, but at the same time they did not emphasize that those consequences differ substantially among…
Author(s): Richard L. Hutto
Year Published:

Human and natural disturbances are key drivers of change in forest ecosystems. Yet, the direct and indirect mechanisms which underpin these changes remain poorly understood at the ecosystem level. Here, using structural equation modelling across a…
Author(s): Elle J. Bowd, Sam C. Banks, Andrew Bissett, Tom W. May, David B. Lindenmayer
Year Published:

Wildfires pose a significant challenge to the natural and the built environments, as well as the safety and economic well-being of the communities residing in wildfire-prone areas. The electric power grid is specifically among the built environments…
Author(s): Ali Arab, Amin Khodaei, Rozhin Eskandarpour, Matthew P. Thompson, Yu Wei
Year Published:

Forests store significant quantities of carbon, and accurate quantification of the fate of this carbon after fire is necessary for global carbon accounting. Pyrogenic carbon (PyC) encompasses various carbonaceous products of incomplete combustion…
Author(s): Alexandra Howell, Mario Bretfeld, Erica Belmont
Year Published:

Northern Eurasia is currently highly sensitive to climate change. Fires in this region can have significant impacts on regional air quality, radiative forcing and black carbon deposition in the Arctic which can accelerate ice melting. Using a MODIS-…
Author(s): Wei Min Hao, Matthew C. Reeves, L. Scott Baggett, Yves Balkanski, Philippe Ciais, Bryce L. Nordgren, Alexander P. Petkov, Rachel E. Corley, Florent Mouillot, Shawn P. Urbanski, Chao Yue
Year Published:

wo years ago, the crew of the Po- larstern, a German icebreaker frozen into Arctic sea ice, shot a green laser up into the night. The beam’s reflected light was meant to help researchers study icy winter clouds. Instead, the beam encountered…
Author(s): Paul Voosen
Year Published:

Wildfires in sagebrush (Artemisia spp.)-dominated semi-arid ecosystems in the western United States have increased dramatically in frequency and severity in the last few decades. Severe wildfires often lead to the loss of native sagebrush…
Author(s): Karun Pandit, Hamid Dashti, Andrew T. Hudak, Nancy F. Glenn, Alejandro N. Flores, Douglas J. Shinneman
Year Published:

Children and youth are among the most vulnerable to the devastating effects of disaster due to the physical, cognitive, and social factors related to their developmental life stage. Yet children and youth also have the capacity to be resilient and…
Author(s): Caroline McDonald-Harker, Julie Drolet, Anika Sehgal, Matthew R. G. Brown, Peter H. Silverstone, Pamela Brett-MacLean, Vincent I. O. Agyapong
Year Published:

In our paper titled, ‘Mean Composite Fire Severity Metrics Computed with Google Earth Engine Offer Improved Accuracy and Expanded Mapping Potential’ (Parks et al., 2018, [1]) (https://www.fs.usda.gov/treesearch/pubs/56293), we incorrectly executed…
Author(s): Sean A. Parks, Lisa M. Holsinger, Morgan A. Voss, Rachel A. Loehman, Nathaniel P. Robinson
Year Published:

Climate warming is expected to increase fire frequency in many productive obligate seeder forests, where repeated high-intensity fire can initiate stand conversion to alternative states with contrasting structure. These vegetation–fire interactions…
Author(s): Tegan P. Brown, Assaf Inbar, Thomas J. Duff, Jamie Burton, Philip J. Noske, Patrick N. J. Lane, Gary J. Sheridan
Year Published:

In recent years, wildland fires have occurred more frequently and with increased intensity in many fire-prone areas. In addition to the direct life and economic losses attributable to wildfires, the emitted smoke is a major contributor to ambient…
Author(s): Hao Chen, James M. Samet, Philip A. Bromberg, Haiyan Tong
Year Published:

Knowledge of how factors such as climate, plant regeneration traits and fire characteristics influence the rate and pattern of post-fire habitat change is crucial for strategic fire management and biodiversity conservation in fire-affected areas.…
Author(s): Frederick W. Rainsford, Luke T. Kelly, Steven W.J. Leonard, Andrew F. Bennett
Year Published:

Fire is one of the main causes of environmental and ecosystem change. Geospatial data, derived from satellite images and surveying observations, are a useful tool in managing land use and land cover changes. In this paper, we present a multi-…
Author(s): Narissara Nuthammachot, Dimitris Stratoulias
Year Published:

Firefighters’ safety during fire responses depends on sound policies and procedures that ensure they can do their jobs efficiently and effectively. Decisions on vehicle crew size and total effective response force deployment should be based on the…
Author(s): Lori Moore-Merrell, Steve Kerber, Gavin P. Horn, Denise L. Smith
Year Published: