Download or read book Biogeomorphic Responses to Wildfire in Fluvial Ecosystems written by Joan L. Florsheim and published by Geological Society of America. This book was released on 2024-05-22 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluvial Response a Decade After Wildfire in the Northern Yellowstone Ecosystem written by Carl J. Legleiter and published by . This book was released on 2003 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest fire is a vital ecological process capable of inducing complex fluvial response, but the integration of these effects across entire watersheds remains poorly understood. We collected downstream cross-sectional and geomorphic data, acquired geographic information on land cover and forest fire, and performed spatially explicit statistical analyses to examine fire-related impacts in catchments burned to varying degrees. Generalized least squares (GLS) regression models suggested that channels with a greater percentage of burned drainage area were associated with markedly higher cross-sectional stream power, relatively smaller width/depth ratios, and lower bank failure rates 12 to 13 years after the fires. These results implied that streams became more powerful in the aftermath of forest fire and that net incision had been the primary response in second- to fourth-order channels since the 1988 Yellowstone fires. The extensive geographic coverage of our data, spanning multiple basins with measurements spaced every 100 m, allowed us to hypothesize a process-response model based on these results. We suggest that a wave of fire-related sediment propagates through burned catchments. High runoff events or even moderate flows provide sufficient energy to evacuate the finer-grained material delivered from burned hillslopes to the channel network over a period of 5-10 years. The combination of elevated post-fire discharges and decreased sediment supply then induces an episode of incision. Site-specific channel changes are highly variable because streams can accommodate post-fire increases in energy and sediment supply through multiple modes of adjustment. Characterizing the spatial distribution of stream power would provide a valuable management tool because this variable is strongly associated with percent-burned drainage area and integrates several elements of complex fluvial response. Future research focused on the channel substrate and its evolution through time is needed, but our results indicate a fundamental linkage between fire and fluvial processes. --Abstract.
Download or read book Plant Fire Interactions written by Víctor Resco de Dios and published by Springer Nature. This book was released on 2020-03-17 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a unique exploration of the inter-relationships between the science of plant environmental responses and the understanding and management of forest fires. It bridges the gap between plant ecologists, interested in the functional and evolutionary consequences of fire in ecosystems, with foresters and fire managers, interested in effectively reducing fire hazard and damage. This innovation in this study lies in its focus on the physiological responses of plants that are of relevance for predicting forest fire risk, behaviour and management. It covers the evolutionary trade-offs in the resistance of plants to fire and drought, and its implications for predicting fuel moisture and fire risk; the importance of floristics and plant traits, in interaction with landform and atmospheric conditions, to successfully predict fire behaviour, and provides recommendations for pre- and post- fire management, in relation with the functional composition of the community. The book will be particularly focused on examples from Mediterranean environments, but the underlying principles will be of broader utility.
Download or read book Multiple Stressors in River Ecosystems written by Sergi Sabater and published by Elsevier. This book was released on 2018-08-30 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiple Stressors in River Ecosystems: Status, Impacts and Prospects for the Future provides a comprehensive and current overview on the topic as written by leading river scientists who discuss the relevance of co-occurring stressors for river ecosystems. River ecosystems are subject to multiple stressors that threaten their ecological status and the ecosystem services they provide. This book updates the reader’s knowledge on the response and management of river ecosystems to multi-stress situations occurring under global change. Detailing the risk for biodiversity and functioning in a case-study approach, it provides insight into methodological issues, also including the socioeconomic implications. Presents a case study approach and geographic description on the relevance of multiple stressors on river ecosystems in different biomes Gives a uniquely integrated perspective on different stressors, including their interactions and joint effects, as opposed to the traditional one-by-one approach Compiles state-of-the-art methods and technologies in monitoring, modeling and analyzing river ecosystems under multiple stress conditions
Download or read book Assessing the Effects of Fire Disturbance on Ecosystems written by Daniel Lee Schmoldt and published by DIANE Publishing. This book was released on 1999 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: A team of fire scientists & resource managers convened to assess the effects of fire disturbance on ecosystems. Objectives of this workshop were to develop scientific recommendations for future fire research & management activities. These included a series of numerically ranked scientific & managerial questions & responses focusing on (1) links among fire effects, fuels, & climate; (2) fire as a large-scale disturbance; (3) fire-effects modeling structures; & (4) managerial concerns, applications, & decision support. The priority issues & approaches described here provide a template for fire science & fire management programs in the next decade & beyond.
Download or read book Fire in North American Wetland Ecosystems and Fire wildlife Relations written by Ronald E. Kirby and published by . This book was released on 1988 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessing the Effects of Fire Disturbance on Ecosystems written by and published by . This book was released on 1999 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Effects on Ecosystems written by Leonard F. DeBano and published by John Wiley & Sons. This book was released on 1998-03-09 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive exploration of the effects of fires--in forests and other environments--on soils, watersheds, vegetation, air and cultural resources.
Download or read book Biological Water Quality and Aquatic Habitat Responses to Wildfire in the Middle Fork of the Salmon River and Its Tributaries written by G. Wayne Minshall and published by . This book was released on 1981 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildland Fire in Ecosystems written by and published by . This book was released on 2000 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stream Ecosystem Response to Wildfire written by and published by . This book was released on 2007 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire in Ecosystems of Boreal Eurasia written by Johann Georg Goldammer and published by Springer Science & Business Media. This book was released on 1996-07-31 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the first priority areas among joint East/West research programs is the rational use of natural resources and sustainable development of regions. In the boreal zone of North America and Eurasia forests are economically very important and, at the same time highly vulnerable to disturbances. Because of its size and ecological functions the boreal forest zone and its most dynamic disturbance factor - fire - play an important role in ecosystem processes on global scale. Interest within the global change research community in Northern Eurasia (Fennoscandia, European Russia, Siberia, and the Far East of Russia) has grown dramatically in the last few years. It is a vast area about which very little is known. It is a region where temperature rise due to anthropogenic climate forcing is predicted to be the greatest, and where the consequent feedbacks to the atmosphere are potentially large. In addition, it is poised to undergo rapid economic development, which may lead to large and significant changes to its land cover. Much of this interest in Northern Eurasia, as in the high latitude regions in general, is centerd on its role in the global carbon cycle, which is likely to be significantly affected under global change. New research initiatives between Western and Eastern countries have been designed to address a series of phenomena, problems and management solutions.
Download or read book The Role of Wildfire in Shaping the Structure and Function of California Mediterranean Stream riparian Ecosystems in Yosemite National Park written by Breeanne Kathleen Jackson and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Although fire severity has been shown to be a key disturbance to stream-riparian ecosystems in temperate zones, the effects of fire-severity on stream-riparian structure and function in Mediterranean-type systems remains less well resolved. Mediterranean ecosystems of California are characterized by high interannual variability in precipitation and susceptibility to frequent high-intensity wildfires. From 2011 to 2014, I utilized a variety of experimental designs to investigate the influence of wildfire across 70 study reaches on stream-riparian ecosystems in Yosemite National Park (YNP), located in the central Sierra Nevada, California, USA. At 12 stream reaches paired by fire-severity, I measured riparian community composition and structure, stream geomorphology, density and community composition of benthic macroinvertebrates, and density, trophic position, mercury (Hg) body loading, and reliance on aquatically-derived energy of/by spiders of the family Tetragnathidae, a common riparian spider that relies heavily on emergent aquatic insect prey. In addition, along a gradient of drainage area in two rivers, I measured the relative effects of ecosystem size, flood magnitude, productivity, and wildfire on trophic position and reliance on aquatically-derived energy of/by benthic insect predators and tetragnathid spiders. Aquatic birds like the American dipper (Cinclus mexicanus) are considered landscape integrators and are constrained by different ecological processes than aquatic organisms, therefore assessment of the trophic dynamics of aquatic-obigate birds may illuminate divergent patterns related to both fire and food-web dynamics. I estimated reliance on aquatically-derived energy and trophic position of dippers in 27 mountain streams and estimated the relative explanatory power of ecosystem size, precipitation, and wildfire as predictors of dipper trophic dynamics. Taken together, the results of my study, combined with the long period of time since fire at some study reaches, indicate support for interactions between wildfire and climate across complex spatial and temporal scales as drivers of stream-riparian ecosystem responses to wildfire.
Download or read book Ecological Restoration Wildfire Ecology Reference Manual written by Doug Knowling and published by Lulu.com. This book was released on 2016-10-10 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire ecology is a scientific discipline concerned with natural processes involving fire in an ecosystem and the ecological effects, the interactions between fire and the abiotic and biotic components of an ecosystem, and the role of fire as an ecosystem process.
Download or read book Fire Effects Guide PMS 481 Wildland and Forest Fire Behavior Characteristics Fuels Air Quality Soils Water Plants Wildlife Habitat Cultural Resources Grazing Management written by National Wildfire Coordinating Group and published by . This book was released on 2017-05-27 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal government manages a variety of ecosystems across the United States, including deserts, grasslands, tundra, shrublands, forestlands, estuaries, and riparian zones. These ecosystems range from arid to humid, warm to cold, and sea level to over 10,000 feet elevation. Fires naturally occur in almost all of these ecosystems, with fire characteristics determined by climate, vegetation, and terrain. The purposes of this Guide are to summarize available information on fire effects principles and processes, provide references for additional information, and provide guidelines for the collection, analysis, and evaluation of wild and prescribed fire effects data. Basic mechanisms of fire effects are described so that the reader will be able to understand and interpret fire effects literature, and evaluate observed results that conflict with those presented in published reports. The goal is to improve fire management by improving our ability to manage fire effects. The Guide was written as an aid for resource managers and fire managers. It can be used for managing and evaluating wildfires; developing and implementing emergency fire rehabilitation plans; planning, monitoring, and evaluating prescribed fires; developing activity plans such as timber management plans, allotment management plans, and threatened and endangered species recovery plans; and providing fire management input for land use plans. The chapters of this Guide discuss different elements that relate to our management of fire effects and specific responses of different ecosystem components to fire. This Handbook recognizes that separate discussions of fire effects on fuels, soils, watershed, plants, and wildlife are artificial, because fire effects are an integration of the responses of all of these components to fire. Despite the fact that fire effects occur holistically, ecosystem components are discussed individually as a means of organizing the information. Chapters describe basic principles and processes that regulate fire effects, including fire behavior and characteristics, fuels, air quality, soils and watershed, plants, wildlife, and cultural values. Considerations for management of fire effects on these resources, and a discussion of appropriate techniques for monitoring fire effects, are contained in each of these chapters. Monitoring is included in this Handbook because techniques that accurately describe long-term trends in plant community condition, for example, are not adequate to detect significant and sudden changes caused by burning. Because an understanding of prefire and postfire grazing management, data analysis, and documentation and evaluation procedures is critical to sound management and monitoring of fire effects, chapters on each of these topics are also included. Resource management is goal oriented. The first chapter in this Guide is a discussion of goals and objectives and how they fit into planning for the use and management of fire. Preface * Chapter 1: Development of Objectives * Chapter 2: Fire Behavior and Characteristics * Chapter 3: Fuels * Chapter 4: Air Quality * Chapter 5: Soils, Water, and Watersheds * Chapter 6: Plants * Chapter 7: Terrestrial Wildlife and Habitat * Chapter 8: Cultural Resources * Chapter 9: Prefire and Postfire Grazing Management * Chapter 10: Evaluation * Chapter 11: Data Management * Chapter 12: Computer Software
Download or read book Wildland Fire in Ecosystems written by L. Jack Lyon and published by CreateSpace. This book was released on 2012-10 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire regimes-that is, patterns of fire occurrence, size, uniformity, and severity-have been a major force shaping landscape patterns and influencing productivity throughout North America for thousands of years. Faunal communities have evolved in the context of particular fire regimes and show patterns of response to fire itself and to the changes in vegetation composition and structure that follow fire. Animals' immediate responses to fire are influenced by fire season, intensity, severity, rate of spread, uniformity, and size. Responses may include injury, mortality, immigration, or emigration. Animals with limited mobility, such as young, are more vulnerable to injury and mortality than mature animals. The habitat changes caused by fire influence faunal populations and communities much more profoundly than fire itself. Fires often cause a short-term increase in productivity, availability, or nutrient content of forage and browse. Fires generally favor raptors by reducing hiding cover and exposing prey. Small carnivores respond to fire effects on small mammal populations (either positive or negative). Large carnivores and omnivores are opportunistic species with large home ranges. Their populations change little in response to fire, but they tend to thrive in areas where their preferred prey is most plentiful-often in recent burns. In forests and woodlands, understory fires generally alter habitat structure less than mixed severity and stand-replacement fires, and their effects on animal populations are correspondingly less dramatic. Stand-replacing fires reduce habitat quality for species that require dense cover and improve it for species that prefer open sites. Population explosions of wood-boring insects, an important food source for insect predators and insect-eating birds, can be associated with fire-killed trees. Woodpecker populations generally increase after mixed-severity and stand-replacement fire if snags are available for nesting. Secondary cavity nesters, both birds and mammals, take advantage of the nest sites prepared by primary excavators. Many animal-fire studies depict a reorganization of animal communities in response to fire, with increases in some species accompanied by decreases in others. Like fire effects on populations, fire effects on communities are related to the amount of structural change in vegetation. Bird abundance and diversity are likely to be greatest early in succession. When shrub or tree canopy closure occurs, species that prefer open sites and habitat edges decline and species that prefer mature structures increase. Major changes to fire regimes alter landscape patterns, processes, and functional linkages. These changes can affect animal habitat and often produce major changes in the composition of faunal communities. In many Western ecosystems, landscape changes due to fire exclusion have changed fuel quantities and arrangement, increasing the likelihood of large or severe fires, or both. Where fire exclusion has changed species composition and fuel arrays over large areas, subsequent fires without prior fuel modification are unlikely to restore presettlement vegetation and habitat. In many desert and semi desert habitats where fire historically burned infrequently because of sparse fuels, invasion of weedy species has changed the vegetation so that burns occur much more frequently. Many animals in these ecosystems are poorly adapted to avoid fire or use resources in postfire communities. Collaboration among managers, researchers, and the public is needed to address tradeoffs in fire management, and fire management must be better integrated with overall land management objectives to address the potential interactions of fire with other disturbances such as grazing, flood, wind throw, and insect and fungus infestations.
Download or read book Forest Fires written by Edward A. Johnson and published by Academic Press. This book was released on 2001 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Even before the myth of Prometheus, fire played a crucial ecological role around the world. Numerous plant communities depend on fire to generate species diversity in both time and space. Without fire such ecosystems would become sterile monocultures. Recent efforts to prohibit fire in fire dependent communities have contributed to more intense and more damaging fires. For these reasons, foresters, ecologists, land managers, geographers, and environmental scientists are interested in the behavior and ecological effects of fires. This book will be the first to focus on the chemistry and physics of fire as it relates to the ways in which fire behaves and the impacts it has on ecosystem function. Leading international contributors have been recruited by the editors to prepare a didactic text/reference that will appeal to both advanced students and practicing professionals.
