Edge effects on the regeneration of forest fragments in south Brazil
... Forested environments are being cleared all over the world. From 1981 to 1990, the loss of tropical forests was estimated at 154 million ha. As a result of that, the interface between forest and open environment has increased greatly. General patterns of species distribution and dynamics in these fo ...
... Forested environments are being cleared all over the world. From 1981 to 1990, the loss of tropical forests was estimated at 154 million ha. As a result of that, the interface between forest and open environment has increased greatly. General patterns of species distribution and dynamics in these fo ...
Riparian forestry management and adult stream insects
... forests with dense canopy cover are generally cooler with lower wind speeds and higher relative humidity, compared to areas outside the forest, such as clear cut or pasture (Chen et al., 1993; Collier and Smith, 2000). The generally hotter, less humid and more variable conditions outside forestry co ...
... forests with dense canopy cover are generally cooler with lower wind speeds and higher relative humidity, compared to areas outside the forest, such as clear cut or pasture (Chen et al., 1993; Collier and Smith, 2000). The generally hotter, less humid and more variable conditions outside forestry co ...
APPENDIX VII. Thesis and Dissertations authored by GREF Fellows.
... Amanda S. Holden, MS 2008: “Estimating contributions of primary biomass combustion to fine particulate matter at sites in the western United States.” Advisor – Jeffrey Collett Jr. ...
... Amanda S. Holden, MS 2008: “Estimating contributions of primary biomass combustion to fine particulate matter at sites in the western United States.” Advisor – Jeffrey Collett Jr. ...
BiomePresentation project
... to find out about one of the world’s biomes 2. Each group will orally present their biome to the class in PowerPoint or I Movie. (upload to Mrs. Dunnavant’s school web page) 3. Each student will become familiar with the names and basic characteristics of the different biomes and the populations they ...
... to find out about one of the world’s biomes 2. Each group will orally present their biome to the class in PowerPoint or I Movie. (upload to Mrs. Dunnavant’s school web page) 3. Each student will become familiar with the names and basic characteristics of the different biomes and the populations they ...
Ecosystems and Biomes
... A deciduous forest receives at least 50 centimeters of precipitation each year. Temperatures vary greatly through the year. ...
... A deciduous forest receives at least 50 centimeters of precipitation each year. Temperatures vary greatly through the year. ...
Nitrogen deposition: how important is it for global
... 4N2K and 8N2K are the same as (1–4) but a uniform increase of 2 K in atmospheric temperature forcing is imposed. In the above simulations, changes in N deposition, CO2 and climate warming are imposed as step-function changes at the start of the simulations. It should be noted that we refer to 1N as ...
... 4N2K and 8N2K are the same as (1–4) but a uniform increase of 2 K in atmospheric temperature forcing is imposed. In the above simulations, changes in N deposition, CO2 and climate warming are imposed as step-function changes at the start of the simulations. It should be noted that we refer to 1N as ...
Foliage shedding in deciduous forests lifts up long
... collected from traps in every single census. This species showed a dispersal peak during fall, either in October (2001), November (2000), or December (2002), and a secondary small peak in May. The second most common species, Liquidambar styraciflua, showed a biannual pattern with peaks in late Novem ...
... collected from traps in every single census. This species showed a dispersal peak during fall, either in October (2001), November (2000), or December (2002), and a secondary small peak in May. The second most common species, Liquidambar styraciflua, showed a biannual pattern with peaks in late Novem ...
Tree-ring elemental concentrations in oak do not necessarily
... are mixed coniferous and deciduous remnant second growth stands. The sites are all located within the natural range for red and white oak, and while not the dominant species at every stand, they are abundant. When possible, white oak was sampled preferentially to red oak because it has preferred cha ...
... are mixed coniferous and deciduous remnant second growth stands. The sites are all located within the natural range for red and white oak, and while not the dominant species at every stand, they are abundant. When possible, white oak was sampled preferentially to red oak because it has preferred cha ...
Silvicultural Systems for Mixedwood Management
... stand and forest level objectives Need to keep TIME and SUCCESSION in mind Mixedwood stands are mid-successional (take time to develop and have a natural tendancy to move on to spruce in time) (it may take 2 or 3 cyles of aspen regeneration before spruce eventually dominates) ...
... stand and forest level objectives Need to keep TIME and SUCCESSION in mind Mixedwood stands are mid-successional (take time to develop and have a natural tendancy to move on to spruce in time) (it may take 2 or 3 cyles of aspen regeneration before spruce eventually dominates) ...
Chapter 5 Biotic interactions and temporal patterns forLandslide
... replacements may also occur due to differences in the life histories of landslide colonizers. 3. Herbivores, pathogens, and non-native species influence landslide succession and contribute to the variety of successional trajectories found on landslides, potentially with long-term consequences. 4. La ...
... replacements may also occur due to differences in the life histories of landslide colonizers. 3. Herbivores, pathogens, and non-native species influence landslide succession and contribute to the variety of successional trajectories found on landslides, potentially with long-term consequences. 4. La ...
070108F_FinalReport_Project Chicamocha II
... NICEFORO’S WREN .............................................................................................40 ...
... NICEFORO’S WREN .............................................................................................40 ...
Soil water content and emergence time control seedling
... periods of resource variability could be important to understanding forest community dynamics. In seasonally dry environments, rainfall is too scarce to support the closed canopy that normally drives plants to compete for light; instead, belowground resources such as water and nutrients can be more ...
... periods of resource variability could be important to understanding forest community dynamics. In seasonally dry environments, rainfall is too scarce to support the closed canopy that normally drives plants to compete for light; instead, belowground resources such as water and nutrients can be more ...
Porcupine Ecology and Damage Management Technigues for Rural
... a pebble-like texture from structures called tuberosities, which are used to increase friction against the tree trunk. Footpads are used solely for climbing small tree trunks or branches that are too narrow in diameter for claws. Footpad size increases with body size, and males generally have larger ...
... a pebble-like texture from structures called tuberosities, which are used to increase friction against the tree trunk. Footpads are used solely for climbing small tree trunks or branches that are too narrow in diameter for claws. Footpad size increases with body size, and males generally have larger ...
Long-term ecological dynamics: reciprocal
... Many ecological dynamics occur over time-scales that are well beyond the duration of conventional experiments or observations. One useful approach to overcome this problem is extrapolation of temporal dynamics from spatial variation. We review two complementary variants of this approach that have be ...
... Many ecological dynamics occur over time-scales that are well beyond the duration of conventional experiments or observations. One useful approach to overcome this problem is extrapolation of temporal dynamics from spatial variation. We review two complementary variants of this approach that have be ...
Filling the Gaps
... associated food insecurity; famines; and -- influencing everything-- accelerating climate change. The role of natural or semi-natural habitats in providing environmental services is increasingly recognised. These two phenomena are of a physical/biological nature, and yet they are not separate (and ...
... associated food insecurity; famines; and -- influencing everything-- accelerating climate change. The role of natural or semi-natural habitats in providing environmental services is increasingly recognised. These two phenomena are of a physical/biological nature, and yet they are not separate (and ...
the Sooty Grouse report
... readied for harvest. We had seen evidence of feral pigs disrupted the normal establishment of plants. In better in all the stands we had visited, but soil disturbance due soils, rooting by pigs has probably been even more to pig rooting was most evident around oak stands. disruptive. The widespread ...
... readied for harvest. We had seen evidence of feral pigs disrupted the normal establishment of plants. In better in all the stands we had visited, but soil disturbance due soils, rooting by pigs has probably been even more to pig rooting was most evident around oak stands. disruptive. The widespread ...
significant natural areas timaru district
... contracted by Timaru District Council to undertake the SNA survey. Opinions and recommendations expressed in this report are those of Mike Harding and should not be assumed to represent the views of Timaru District Council. ...
... contracted by Timaru District Council to undertake the SNA survey. Opinions and recommendations expressed in this report are those of Mike Harding and should not be assumed to represent the views of Timaru District Council. ...
Comparative carbon cycle dynamics of the present and last interglacial
... CO2 sensitivity of the particular vegetation model and on the amplitude of the CO2 increase in the model simulation (CO2 could be prescribed or interactively simulated by the model). Moreover, many ecosystems are not only limited by CO2, but by nutrient availability. All of these early modeling stud ...
... CO2 sensitivity of the particular vegetation model and on the amplitude of the CO2 increase in the model simulation (CO2 could be prescribed or interactively simulated by the model). Moreover, many ecosystems are not only limited by CO2, but by nutrient availability. All of these early modeling stud ...
Comparative carbon cycle dynamics of the present and last interglacial
... CO2 sensitivity of the particular vegetation model and on the amplitude of the CO2 increase in the model simulation (CO2 could be prescribed or interactively simulated by the model). Moreover, many ecosystems are not only limited by CO2, but by nutrient availability. All of these early modeling stud ...
... CO2 sensitivity of the particular vegetation model and on the amplitude of the CO2 increase in the model simulation (CO2 could be prescribed or interactively simulated by the model). Moreover, many ecosystems are not only limited by CO2, but by nutrient availability. All of these early modeling stud ...
Meeting Content Message from the Division Slide 1 Title
... • USDA Animal and Plant Health Inspection Service – Plant Protection and Quarantine, Eradication • Purdue University – Public Outreach and Information, Research The public is encouraged to participate by commenting on how they want to proceed with gypsy moth management in their communities. The Divi ...
... • USDA Animal and Plant Health Inspection Service – Plant Protection and Quarantine, Eradication • Purdue University – Public Outreach and Information, Research The public is encouraged to participate by commenting on how they want to proceed with gypsy moth management in their communities. The Divi ...
Disturbance, Scale, and Boundary in Wilderness
... Abstract—Natural disturbances are critical to wilderness management. This paper reviews recent research on natural disturbance and addresses the problem of managing for disturbances in a world of human-imposed scales and boundaries. The dominant scale issue in disturbance management is the question ...
... Abstract—Natural disturbances are critical to wilderness management. This paper reviews recent research on natural disturbance and addresses the problem of managing for disturbances in a world of human-imposed scales and boundaries. The dominant scale issue in disturbance management is the question ...
Uganda - BirdLife Data Zone
... montane and bamboo forests, heath and moorland on mountains; medium-altitude and lowland forests along the Rift Valley and around Lake Victoria; and extensive wetlands and flood-plains in the Nile valley and around Lake Victoria. The great majority of this natural vegetation has, however, been subje ...
... montane and bamboo forests, heath and moorland on mountains; medium-altitude and lowland forests along the Rift Valley and around Lake Victoria; and extensive wetlands and flood-plains in the Nile valley and around Lake Victoria. The great majority of this natural vegetation has, however, been subje ...
eucalyptus porosa grassy woodlands
... birds, reptiles and invertebrates. Unfortunately, many people still have the misconception that dead trees and fallen branches are only useful as firewood or should at least be tidied up. Leaving dead trees and fallen timber is one of the single most important things that can be done to protect our ...
... birds, reptiles and invertebrates. Unfortunately, many people still have the misconception that dead trees and fallen branches are only useful as firewood or should at least be tidied up. Leaving dead trees and fallen timber is one of the single most important things that can be done to protect our ...
Hammock Homes for Hangouts
... Pine flatwoods are the most human-influenced ecosystem type in Florida. There are two primary ways in which humans have affected flatwoods. The first way is by clearing and developing the land, because the flat topography in these areas makes good home sites, cropland, and pasture. Many thousands of ...
... Pine flatwoods are the most human-influenced ecosystem type in Florida. There are two primary ways in which humans have affected flatwoods. The first way is by clearing and developing the land, because the flat topography in these areas makes good home sites, cropland, and pasture. Many thousands of ...
Long term requirement for forestry and climate change
... results. Perhaps this is the reason that despite more than 100 international efforts and agreements, tropical forests continue to be lost at the tragic rate of 15 million hectares per year (Food and Agriculture Organization, 1999). There are other benefits to conserving tropical forests as well. In ...
... results. Perhaps this is the reason that despite more than 100 international efforts and agreements, tropical forests continue to be lost at the tragic rate of 15 million hectares per year (Food and Agriculture Organization, 1999). There are other benefits to conserving tropical forests as well. In ...
Reforestation
Reforestation is the natural or intentional restocking of existing forests and woodlands that have been depleted, usually through deforestation.Reforestation can be used to improve the quality of human life by soaking up pollution and dust from the air, rebuild natural habitats and ecosystems, mitigate global warming since forests facilitate biosequestration of atmospheric carbon dioxide, and harvest for resources, particularly timber.The term reforestation is similar to afforestation, the process of restoring and recreating areas of woodlands or forests that may have existed long ago but were deforested or otherwise removed at some point in the past. Sometimes the term re-afforestation is used to distinguish between the original forest cover and the later re-growth of forest to an area. Special tools, e.g. tree planting bar, are used to make planting of trees easier and faster.