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Showing 1 to 20 of 43 for “"fire severity"”.
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Resilience and recovery of plant communities facing increasing fire severity
Extreme events such as megafires are becoming more frequent with changing climate. Changes in fire regimes like increasing fire severity, threaten the survival and recovery of plants through lack of adaptation to these extreme occurrences. Beyond impacts on individuals this can shift the …
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The effects of grass invasion and fire severity on Acacia koa regeneration
With spreading invasive grass increasing wildfire occurrence worldwide, there is a need for a better understanding of the relationships between native trees, fire, and grass so that land managers can increase their forested landscapes’ fire resilience. One challenge to this line of inquiry is that …
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Evaluating dNBR and CBI for Fire Severity Estimation in Fennoscandian Boreal Surface Fires
Fire severity—the magnitude of ecological change induced by fire—plays a critical role in shaping post-fire recovery dynamics, carbon cycling, and forest management decisions. In Fennoscandian boreal forests, however, accurate severity estimation using remote sensing remains challenging due to …
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Fire Severity and Plant Community Dynamics in the Australian Alps, Southeastern New South Wales
The effects of fire on plant communities are a subset of a broader range of spatial and temporal influences on plant community dynamics. Widespread unplanned fires in the Australian Alps in 2003 provided a unique opportunity to investigate the response of vascular plant species to high severity …
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Fire Severity and Plant Community Dynamics in the Australian Alps, Southeastern New South Wales
The effects of fire on plant communities are a subset of a broader range of spatial and temporal influences on plant community dynamics. Widespread unplanned fires in the Australian Alps in 2003 provided a unique opportunity to investigate the response of vascular plant species to high severity …
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Responses of Arthropods to Fire and How Pollinators and Pollination Services Are Affected by Fire Severity
<p>Fires impact ecosystems globally and due to climate change, there are shifts in fire regimes that impact ecological communities which provide essential ecosystem services. Focusing on arthropods, fire can influence this ubiquitous animal group in various way. We performed a comprehensive …
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Influence of fire severity in fynbos plant communities and mode of regeneration in the southern Cape Peninsula
Fire severity influences species diversity and alters species habitat requirements, therefore it is important to understand what effect severity has on fynbos communities. The smallest twig diameter of burnt skeletons was used as a severity index and compared between two fire events for 9 …
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An assessment of the representation of fire severity and coarse woody debris dynamics in an ecosystem management model
Fire is the most significant natural disturbance agent in the MSdm biogeoclimatic subzone and has a determinant role in the dynamics of lodgepole pine (Pinus contorta ssp. latifolia Engelm.ex S.Wats.) dominated forests. Fire severity is a controversial term that usually refers to a qualitative …
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The influence of fire severity on recruitment of fynbos with particular emphasis on seed size : a field study in the Cape Peninsula
… Cape Peninsula area burnt in the January 2000 fires were sampled to investigate the effects of fire severity on the recruitment of invasive and fynbos plants with particular emphasis on seed size. Four hundred fynbos species were divided into big- (>l0mg) and small-seeded (<10mg) species. …
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Control by Vegetation Disturbance on Gully Rejuvenation Following Wildfire
Gully rejuvenation (GR) following wildfire influences landform evolution and generates flooding and debris that alters aquatic habitat and threatens human activities. Fire severity, defined as the degree of vegetation loss by wildfire, is a hypothesized control on this erosion response. I …
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Control by Vegetation Disturbance on Gully Rejuvenation Following Wildfire
Gully rejuvenation (GR) following wildfire influences landform evolution and generates flooding and debris that alters aquatic habitat and threatens human activities. Fire severity, defined as the degree of vegetation loss by wildfire, is a hypothesized control on this erosion response. I …
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Drivers of burn severity in the northern Cascade Range, Washington, USA
… complexity on the occurrence, size, severity, and within-fire severity pattern of fires in the northern Cascade Range of Washington, USA. Landsat Thematic Mapper (LTM) data were used to quantify fire severity for all fires greater than 10 ha (n = 125) that occurred during a 25-year …
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Variation in tree mortality and regeneration affect forest carbon recovery following fuel treatments and wildfire
… proposed as tools to stabilize carbon stocks in fire-prone forests in the Western U.S. Although treatments immediately reduce forest carbon storage, losses may be paid back over the long-term if treatment sufficiently reduces future wildfire severity. Less severe wildfire produces fewer direct …
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Variation in tree mortality and regeneration affect forest carbon recovery following fuel treatments and wildfire
… proposed as tools to stabilize carbon stocks in fire-prone forests in the Western U.S. Although treatments immediately reduce forest carbon storage, losses may be paid back over the long-term if treatment sufficiently reduces future wildfire severity. Less severe wildfire produces fewer direct …
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Effects of fire and treefalls on Japanese climbing fern and native species groundcover in a restored longleaf pine savanna
… longleaf pine savannas. Windstorms and fires contribute to the heterogeneity of pine savanna understory through generation of canopy gaps and fuel accumulation, distribution and consumption. The combination of windstorms and fires promotes native herbaceous species, but also promotes …
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Integrating remote sensing and terrain data in forest fire modeling
Forest fire policies are changing. Managers now face conflicting imperatives to re-establish pre-suppression fire regimes, while simultaneously preventing resource destruction. They must, therefore, understand the spatial patterns of fires. Geographers can facilitate this understanding by …
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Time and probablity of failure of timber framed walls in fire
… to develop models to predict the performance of fire resistant light-timber framed walls, in relation to requirements of new performance-based building fire regulations being introduced around the world. The performance bases that were adopted in the modelling, were time and probability of …
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Nestbox use and predicted distribution of the southern greater glider (Petauroides volans) following the Black Summer megafires.
… Act 1999. Southern greater gliders are fire-sensitive and severely threatened by the loss of hollow-bearing trees associated with logging and altered fire regimes. In 2019/2020, after an extended period of drought, south-eastern Australia experienced wildfires over an eight-month period. …
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Nestbox use and predicted distribution of the southern greater glider (Petauroides volans) following the Black Summer megafires.
… Act 1999. Southern greater gliders are fire-sensitive and severely threatened by the loss of hollow-bearing trees associated with logging and altered fire regimes. In 2019/2020, after an extended period of drought, south-eastern Australia experienced wildfires over an eight-month period. …
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Remote Sensing Applications to Support Sustainable Natural Resource Management
… different approaches to classifying and mapping fire severity using multi-temporal Landsat TM data. The recommended method currently represents the analytical basis for fire severity data produced by the USDA Forest Service and the US Geological Survey. Chapter three also uses multi-temporal …
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