A hierarchical deductive approach for functional types in disturbed
... those related to: Individual-persistence capacity, Propagulepersistence capacity (persistence at the population level), Competitive capacity (persistence at the community level) and Dispersal capacity (persistence at the landscape level). The IPCD approach is illustrated for fire-prone and grazed ec ...
... those related to: Individual-persistence capacity, Propagulepersistence capacity (persistence at the population level), Competitive capacity (persistence at the community level) and Dispersal capacity (persistence at the landscape level). The IPCD approach is illustrated for fire-prone and grazed ec ...
Ecology and management of oak woodlands and savannahs
... less fire-tolerant oaks, such as southern red (Q. falcata) and northern red, can be retained. Shortleaf and other fire-tolerant pines can also be retained where they still occur. All fire-intolerant species, including maples (Acer spp.) and yellow poplar (Liriodendron tulipifera), should be removed. ...
... less fire-tolerant oaks, such as southern red (Q. falcata) and northern red, can be retained. Shortleaf and other fire-tolerant pines can also be retained where they still occur. All fire-intolerant species, including maples (Acer spp.) and yellow poplar (Liriodendron tulipifera), should be removed. ...
synergistic effects of fire and herbivory
... attribution of these browsing effects to elephants specifically remains challenging, given that ‘most studies have little success in separating elephant impacts from those caused by other herbivores and events such as fire, soil characteristics and drought’ (Guldemond & van Aarde 2008). This suggest ...
... attribution of these browsing effects to elephants specifically remains challenging, given that ‘most studies have little success in separating elephant impacts from those caused by other herbivores and events such as fire, soil characteristics and drought’ (Guldemond & van Aarde 2008). This suggest ...
Succession - cloudfront.net
... newly created soil. During early succession, plant species like grasses that grow and reproduce quickly will take over the landscape. Over time, these plants improve the soil and a few shrubs can begin to grow. Slowly, the shrubs are replaced by small trees. Small trees then are succeeded by larger ...
... newly created soil. During early succession, plant species like grasses that grow and reproduce quickly will take over the landscape. Over time, these plants improve the soil and a few shrubs can begin to grow. Slowly, the shrubs are replaced by small trees. Small trees then are succeeded by larger ...
Read Research Brief PDF - Great Plains Fire Science Exchange
... In the hours and days after fire, burning can initially reduce the total number of species and individuals (Figure 1; Swengel 2001, Larson and Work 2003, Hartley et al. 2007), but these patterns are typically undetected in subsequent years (Anderson et al. 1989, Engle et al. ...
... In the hours and days after fire, burning can initially reduce the total number of species and individuals (Figure 1; Swengel 2001, Larson and Work 2003, Hartley et al. 2007), but these patterns are typically undetected in subsequent years (Anderson et al. 1989, Engle et al. ...
Joint Ecology Working Group Summary
... state in cold, dry zones where it is sometimes the only tree species able to successfully occupy the site. Life History Lodgepole pine regenerates best in full sunlight. Cones can remain on trees without opening for one or more years and may only open after heat is provided by a fire or under very h ...
... state in cold, dry zones where it is sometimes the only tree species able to successfully occupy the site. Life History Lodgepole pine regenerates best in full sunlight. Cones can remain on trees without opening for one or more years and may only open after heat is provided by a fire or under very h ...
Spring 2003 content final
... species of ant (Taber 2000). The anthropomorphic nature of many of these names suggests that humans also tend to identify with its social ways. Because of the extreme and social character of this invasive species one cannot help but find interest in their behavior. It is no surprise, then, that fire ...
... species of ant (Taber 2000). The anthropomorphic nature of many of these names suggests that humans also tend to identify with its social ways. Because of the extreme and social character of this invasive species one cannot help but find interest in their behavior. It is no surprise, then, that fire ...
Priority Research and Management Issues for the Imperiled Great
... wyomingensis and vaseyana) types, the annual grass-fire cycle is resulting in progressive conversion of native shrublands to homogenous grasslands dominated by nonnative invasive species (Brooks & Pyke 2001). Cheatgrass monocultures covered a minimum of 2 million hectares or 5% of the Great Basin in ...
... wyomingensis and vaseyana) types, the annual grass-fire cycle is resulting in progressive conversion of native shrublands to homogenous grasslands dominated by nonnative invasive species (Brooks & Pyke 2001). Cheatgrass monocultures covered a minimum of 2 million hectares or 5% of the Great Basin in ...
Birds Australia Wingspan Supplement 7 Fire and Birds
... • Biodiversity loss is associated with high fire frequency, intense broadscale fire, and fire exclusion, all of which tend to homogenise the landscape. Increasing loss of habitat heterogeneity from the landscape is the single most damaging effect of poor fire management. • Some 50 bird taxa and thei ...
... • Biodiversity loss is associated with high fire frequency, intense broadscale fire, and fire exclusion, all of which tend to homogenise the landscape. Increasing loss of habitat heterogeneity from the landscape is the single most damaging effect of poor fire management. • Some 50 bird taxa and thei ...
Ecosystems
... natural disasters, shifting climates, plate tectonics, and everything else that has shaped our Earth, we are given the extreme diversity in habitats we see today. • The physical landscapes helped shape the biodiversity present. • Biology would be incomplete if we didn’t take time to study the enviro ...
... natural disasters, shifting climates, plate tectonics, and everything else that has shaped our Earth, we are given the extreme diversity in habitats we see today. • The physical landscapes helped shape the biodiversity present. • Biology would be incomplete if we didn’t take time to study the enviro ...
Long-term effects of fire frequency and season on herbaceous
... The dynamic coexistence of these two life forms has long interested ecologists (Belsky 1990; Huntley and Walker 1982; Sarmiento 1984), and a wealth of studies suggest that the balance between herbaceous and woody components of the community is determined by multiple factors, including climatic varia ...
... The dynamic coexistence of these two life forms has long interested ecologists (Belsky 1990; Huntley and Walker 1982; Sarmiento 1984), and a wealth of studies suggest that the balance between herbaceous and woody components of the community is determined by multiple factors, including climatic varia ...
Regeneration of Oak and Northern Hardwood Forests
... • The study of treatments to secure oak regeneration revealed that despite deer browsing, black and white oak regeneration was occurring in many areas of high light intensity due to natural gaps and small clearcuts. • Thinning was too light to be effective, and a single burn not only failed to promo ...
... • The study of treatments to secure oak regeneration revealed that despite deer browsing, black and white oak regeneration was occurring in many areas of high light intensity due to natural gaps and small clearcuts. • Thinning was too light to be effective, and a single burn not only failed to promo ...
Ecosystem of Change
... _______ Trees usually colonize an area before small plants such as grasses. _______ Ecological succession always ends at a final, stable state. _______ Most ecosystems have climax communities. ...
... _______ Trees usually colonize an area before small plants such as grasses. _______ Ecological succession always ends at a final, stable state. _______ Most ecosystems have climax communities. ...
prescribed burn program - Royal Botanical Gardens
... unique terrestrial ecosystems that develop on sites with dry, sandy soils which are subject to environmental stresses, typically fire, drought, and warm local climates. A prairie is a natural community that is dominated by sun-loving grasses and wildflowers. An oak savannah is a community of scatter ...
... unique terrestrial ecosystems that develop on sites with dry, sandy soils which are subject to environmental stresses, typically fire, drought, and warm local climates. A prairie is a natural community that is dominated by sun-loving grasses and wildflowers. An oak savannah is a community of scatter ...
Changes in woody plant composition of three vegetation types
... intensity, which in turn determines the species that survive after a fire. Fire intensity also increases in presence of a high fuel load (Leuthold, 1996; McShane, 1987; Sabiti and Wein, 1988; Salvatori et al., 2001), which would be the case after the elimination of the elephants (Smart et al., 1985) ...
... intensity, which in turn determines the species that survive after a fire. Fire intensity also increases in presence of a high fuel load (Leuthold, 1996; McShane, 1987; Sabiti and Wein, 1988; Salvatori et al., 2001), which would be the case after the elimination of the elephants (Smart et al., 1985) ...
Managing Red Imported Fire Ants in Wildlife Areas
... Buren (Hymenoptera: Formicidae), is an introduced species that arrived in Mobile, Alabama, from South America around the 1930s. This ant species has had an enormous impact in the southeastern United States and continues to spread into areas of North America that have mild climates and adequate moist ...
... Buren (Hymenoptera: Formicidae), is an introduced species that arrived in Mobile, Alabama, from South America around the 1930s. This ant species has had an enormous impact in the southeastern United States and continues to spread into areas of North America that have mild climates and adequate moist ...
Restoration Strategy - National Fish and Wildlife Foundation
... Angeles National Forest Fire Restoration Goals and Priorities This program aims to increase the pace and scale of conservation on the Angeles National Forest through strategic partnership opportunities that address the impacts to the watersheds and ecosystems affected by these fires, provide sustai ...
... Angeles National Forest Fire Restoration Goals and Priorities This program aims to increase the pace and scale of conservation on the Angeles National Forest through strategic partnership opportunities that address the impacts to the watersheds and ecosystems affected by these fires, provide sustai ...
3. Numerical results and discussion
... vegetation, including the drying and the pyrolysis of the vegetation and the surface oxidation of the char coal, contributes also to increase the complexity of the problem. From a more theoretical point of view, some physical mechanisms, such as the turbulence, the coupling between the combustion an ...
... vegetation, including the drying and the pyrolysis of the vegetation and the surface oxidation of the char coal, contributes also to increase the complexity of the problem. From a more theoretical point of view, some physical mechanisms, such as the turbulence, the coupling between the combustion an ...
Spatially extensive reconstructions show variableseverity fire and
... 28.8%. Since high severity should occur outside the range of forest structures assigned to low severity, high severity was defined as having a percentage of small trees > 50% and a percentage of large trees < 20%. This conservative definition identifies stands with few large survivors dominated by c ...
... 28.8%. Since high severity should occur outside the range of forest structures assigned to low severity, high severity was defined as having a percentage of small trees > 50% and a percentage of large trees < 20%. This conservative definition identifies stands with few large survivors dominated by c ...
Overview - Learning Center of the American Southwest
... Precipitation regime is the most important climatic factor for determining the structure and function of southwestern ecosystems. The availability of moisture drives (or limits) basic ecological processes, such as primary production, nutrient cycling, and plant reproduction (Miller 2005). Precipitat ...
... Precipitation regime is the most important climatic factor for determining the structure and function of southwestern ecosystems. The availability of moisture drives (or limits) basic ecological processes, such as primary production, nutrient cycling, and plant reproduction (Miller 2005). Precipitat ...
First-order fire effects on animals: review and recommendations
... Africa. Based on this observation, aestivating juvenile frogs responded to playbacks of fire sounds in the field by moving to take cover in fire resistant sites (Grafe et al. 2002). On the other hand, red bats (Lasiurus borealis) hibernating in leaf litter failed to respond to the sounds of fire alo ...
... Africa. Based on this observation, aestivating juvenile frogs responded to playbacks of fire sounds in the field by moving to take cover in fire resistant sites (Grafe et al. 2002). On the other hand, red bats (Lasiurus borealis) hibernating in leaf litter failed to respond to the sounds of fire alo ...
Biodiversity and resilience of arthropod communities after fire
... challenge for ecologists is to understand the factors that affect the resilience of community structures and ecosystem functions. In many forest ecosystems, one such important natural disturbance is fire. The aim of this study was to understand the variation of resilience in six functional groups of ...
... challenge for ecologists is to understand the factors that affect the resilience of community structures and ecosystem functions. In many forest ecosystems, one such important natural disturbance is fire. The aim of this study was to understand the variation of resilience in six functional groups of ...
alteration of ecosystem nitrogen dynamics by exotic plants: a case
... few studies have compared the relative importance of these pathways. We assessed the impacts of exotic, invasive grasses on ecosystem nitrogen (N) cycling in the seasonal submontane woodlands of Hawaii Volcanoes National Park, where native grasses have been historically rare. Exotic grasses have bec ...
... few studies have compared the relative importance of these pathways. We assessed the impacts of exotic, invasive grasses on ecosystem nitrogen (N) cycling in the seasonal submontane woodlands of Hawaii Volcanoes National Park, where native grasses have been historically rare. Exotic grasses have bec ...
NUMBER OF GOPHER TORTOISE BURROWS AT JONATHAN DICKINSON STATE PARK
... • Habitat loss • Habitat degradation • Fire ...
... • Habitat loss • Habitat degradation • Fire ...
Ecosystems
... Within each ecosystem there are habitats of various sizes. A habitat is a place with a population (a group of living organisms of the same kind). All the populations living in the same place at the same time interact, forming a community. Such community also interacts with the non-living world aroun ...
... Within each ecosystem there are habitats of various sizes. A habitat is a place with a population (a group of living organisms of the same kind). All the populations living in the same place at the same time interact, forming a community. Such community also interacts with the non-living world aroun ...
Fire ecology
Fire ecology is concerned with the processes linking the natural incidence of fire in an ecosystem and the ecological effects of this fire. Many ecosystems, particularly prairie, savanna, chaparral and coniferous forests, have evolved with fire as a necessary contributor to habitat vitality and renewal. Many plant species in naturally fire-affected environments require fire to germinate, establish, or to reproduce. Wildfire suppression not only eliminates these species, but also the animals that depend upon them. Finally, fire suppression can lead to the build-up of flammable debris and the creation of less frequent but much larger and more destructive wildfires.Campaigns in the United States have historically molded public opinion to believe that wildfires are always harmful to nature. This view is based on the outdated belief that ecosystems progress toward an equilibrium and that any disturbance, such as fire, disrupts the harmony of nature. More recent ecological research has shown, however, that fire is an integral component in the function and biodiversity of many natural habitats, and that the organisms within these communities have adapted to withstand, and even to exploit, natural wildfire. More generally, fire is now regarded as a 'natural disturbance', similar to flooding, wind-storms, and landslides, that has driven the evolution of species and controls the characteristics of ecosystems. The map below right shows how each ecosystem type in the United States has a characteristic frequency of fire, ranging from once every 10 years to once every 500 years. Natural disturbances can be described by key factors such as frequency, intensity and area. The map also shows intensity, since some fires are understory fires (light burns that affect mostly understory plants) while others are stand replacement fires (intense fires that tend to kill the adult trees as well.)Fire suppression, in combination with other human-caused environmental changes, has resulted in unforeseen consequences for natural ecosystems. Some uncharacteristically large wildfires in the United States have been caused as a consequence of years of fire suppression and the continuing expansion of people into fire-adapted ecosystems. Land managers are faced with tough questions regarding where to restore a natural fire regime.