Plant communities at the periphery of the Atlantic rain forest
... while provoking some controversy both among scientists and environmentalists (e.g. Srivastava and Vellend, 2005), have been addressed by an increasing number of researchers during the past two decades (for a review see Kareiva and Levin, 2003). These aspects cast doubt as to which extent species rar ...
... while provoking some controversy both among scientists and environmentalists (e.g. Srivastava and Vellend, 2005), have been addressed by an increasing number of researchers during the past two decades (for a review see Kareiva and Levin, 2003). These aspects cast doubt as to which extent species rar ...
Lowland Rainforest on Floodplain
... Powerful Owls nest in large tree hollows (at least 0.5 m deep), in large eucalypts (diameter at breast height of 80 240 cm) that are at least 150 years old. During the breeding season, the male Powerful Owl roosts in a grove of up to 20 30 trees, situated within 100 200 metres of the nest tree where ...
... Powerful Owls nest in large tree hollows (at least 0.5 m deep), in large eucalypts (diameter at breast height of 80 240 cm) that are at least 150 years old. During the breeding season, the male Powerful Owl roosts in a grove of up to 20 30 trees, situated within 100 200 metres of the nest tree where ...
Tradeoffs in seedling growth and survival within and across tropical
... are typically dispersed across a more continuous range of environmental conditions. Studies of wild seedlings may better represent the natural dynamics of forest regeneration, but results in unbalanced sample sizes and may not present clear contrasts among habitat conditions. We present our approach ...
... are typically dispersed across a more continuous range of environmental conditions. Studies of wild seedlings may better represent the natural dynamics of forest regeneration, but results in unbalanced sample sizes and may not present clear contrasts among habitat conditions. We present our approach ...
Douglas-Fir Tussock Moths - Colorado State University Extension
... tops may be killed, sometimes after only a single season of severe injury. Following repeated attacks over several seasons whole trees may die or be weakened to the point of inviting fatal attacks by bark beetles. Problems in urban forests along the Colorado Front Range primarily involve blue spruce ...
... tops may be killed, sometimes after only a single season of severe injury. Following repeated attacks over several seasons whole trees may die or be weakened to the point of inviting fatal attacks by bark beetles. Problems in urban forests along the Colorado Front Range primarily involve blue spruce ...
book of abstracts
... At different national levels mapping and assessment of ecosystems and their services initiatives are currently undertaken. In synergy the EU DG-Environment (DG-Env) working group MAES (Mapping and Assessment of Ecosystems and their Services) works on a common methodological framework. The MAES work ...
... At different national levels mapping and assessment of ecosystems and their services initiatives are currently undertaken. In synergy the EU DG-Environment (DG-Env) working group MAES (Mapping and Assessment of Ecosystems and their Services) works on a common methodological framework. The MAES work ...
Climate and Human-Related Drivers of Biodiversity Decline
... and management of bio-cultural landscapes such as satoyama and satoumi; the status of biodiversity in the South East Asian region; the impact of emerging biofuel technologies to the provision of ecosystems services; scoping the role of urban centres in green development; and underscoring the need fo ...
... and management of bio-cultural landscapes such as satoyama and satoumi; the status of biodiversity in the South East Asian region; the impact of emerging biofuel technologies to the provision of ecosystems services; scoping the role of urban centres in green development; and underscoring the need fo ...
Features of the Prototype Nations Climate Model
... • Runs fast for high-iteration model testing – Model simulates 500 years in less than .1 second – Allows for practical analysis in areas such as uncertainty, tradeoffs, optimization, and robustness ...
... • Runs fast for high-iteration model testing – Model simulates 500 years in less than .1 second – Allows for practical analysis in areas such as uncertainty, tradeoffs, optimization, and robustness ...
Item 25 battistone atus Review for the Northern Spotted Owl
... Flying squirrels (Glaucomys sabrinus) and woodrats (Neotoma sp.) are primary component of diet throughout most of the range. • Flying squirrels are main component in North (much of Washington and Oregon) • Woodrats are the main component in the southern portion of the range (California and parts of ...
... Flying squirrels (Glaucomys sabrinus) and woodrats (Neotoma sp.) are primary component of diet throughout most of the range. • Flying squirrels are main component in North (much of Washington and Oregon) • Woodrats are the main component in the southern portion of the range (California and parts of ...
Assessing the Social Costs and Benefits of Regulating Carbon
... Atmospheric concentrations of greenhouse gases (GHGs), which include carbon dioxide and methane, have been increasing for more than a century. Rising human emissions of these gases, especially from the combustion of fossil fuels and from agriculture, appear to be the primary cause of this increase i ...
... Atmospheric concentrations of greenhouse gases (GHGs), which include carbon dioxide and methane, have been increasing for more than a century. Rising human emissions of these gases, especially from the combustion of fossil fuels and from agriculture, appear to be the primary cause of this increase i ...
Simulated and Observed Preindustrial to Modern
... interval was insufficient to significantly enhance photosynthesis. Fung instead proposed that increasing temperatures might have accelerated snowmelt and lengthened the growing season, thereby enhancing photosynthesis, while the melting of permafrost might have released trapped nutrients. Lucht et a ...
... interval was insufficient to significantly enhance photosynthesis. Fung instead proposed that increasing temperatures might have accelerated snowmelt and lengthened the growing season, thereby enhancing photosynthesis, while the melting of permafrost might have released trapped nutrients. Lucht et a ...
Improving Earth Systems Models through research in the Tropics
... Forests of the Amazon and in tropical systems around the globe cycle more carbon than any other ecosystem on Earth. Tropical forests play a critical role in determining much of the Earth’s energy balance. Furthermore, it is estimated that forests of the tropics are the Earth’s largest carbon sink. H ...
... Forests of the Amazon and in tropical systems around the globe cycle more carbon than any other ecosystem on Earth. Tropical forests play a critical role in determining much of the Earth’s energy balance. Furthermore, it is estimated that forests of the tropics are the Earth’s largest carbon sink. H ...
1. INTRODUCTION: WHAT ARE OLD GROWTH FORESTS AND
... Despite the common perception that old growth means spectacular giant trees, tree size is not the critical factor which determines old growth, nor is forest age. In some old growth forest types, such as lodgepole pine, the trees are small relative to other old growth forests (Franklin and Spies 1983 ...
... Despite the common perception that old growth means spectacular giant trees, tree size is not the critical factor which determines old growth, nor is forest age. In some old growth forest types, such as lodgepole pine, the trees are small relative to other old growth forests (Franklin and Spies 1983 ...
SUCCESSION, PHENOMENON OF
... deep soil suitable for tilling and agriculture, and land with plants such as Salicornia might be so loaded with salt as to be unreclaimable. One could use indicator species to determine the past history of a landscape and to predict its future changes and potential uses. Climax community concept: Th ...
... deep soil suitable for tilling and agriculture, and land with plants such as Salicornia might be so loaded with salt as to be unreclaimable. One could use indicator species to determine the past history of a landscape and to predict its future changes and potential uses. Climax community concept: Th ...
CO 2 - ICTS
... The Net reaction is CO2 + H2O + CO32- ↔ 2HCO3• CO2 invasion into ocean will deplete CO32• Reduced CO32- is detrimental to organisms that need CO32- for making shells and skeletons ...
... The Net reaction is CO2 + H2O + CO32- ↔ 2HCO3• CO2 invasion into ocean will deplete CO32• Reduced CO32- is detrimental to organisms that need CO32- for making shells and skeletons ...
Forest Impacts and Ecosystem Effects of the Hemlock Woolly Adelgid... Southeastern Naturalist
... forests dominated by Eastern Hemlock. The only estimate of the relative abundance of Red Efts comes from an oak-pine woodland located 800 m from a breeding pond in central Massachusetts where the density of Red Efts was 0.03 individuals/m2 (Healy 1975). Red Efts do not appear to be affected by low s ...
... forests dominated by Eastern Hemlock. The only estimate of the relative abundance of Red Efts comes from an oak-pine woodland located 800 m from a breeding pond in central Massachusetts where the density of Red Efts was 0.03 individuals/m2 (Healy 1975). Red Efts do not appear to be affected by low s ...
Wild Boar in Singapore - Nature Society (Singapore)
... Of particular concern is the Lower Peirce forest area where two very large family groups have become persistent and their activities have denuded a significant amount of the Lower Peirce forest and damaged large areas of open grassland within the Lower Peirce reservoir park. Animals from this group ...
... Of particular concern is the Lower Peirce forest area where two very large family groups have become persistent and their activities have denuded a significant amount of the Lower Peirce forest and damaged large areas of open grassland within the Lower Peirce reservoir park. Animals from this group ...
An Assessment of Forest Cover and Impervious City Watershed
... results of landowner surveys (Caron et al. in press). In the field, we systematically sampled each parcel using variable radius point samples on a rectangular sampling grid (Germain et al. 2007). The distance between sampling points on the grid was calculated to meet minimum sample targets for each ...
... results of landowner surveys (Caron et al. in press). In the field, we systematically sampled each parcel using variable radius point samples on a rectangular sampling grid (Germain et al. 2007). The distance between sampling points on the grid was calculated to meet minimum sample targets for each ...
Article - Biogeosciences
... carbon fluxes. We investigated to what extent and at which temporal scales, climatic variability and changes in ecosystem functional properties determined the IAV of the carbon balance. Empirical models were used as tools to estimate the seasonal and interannual variation of the ecosystem functional ...
... carbon fluxes. We investigated to what extent and at which temporal scales, climatic variability and changes in ecosystem functional properties determined the IAV of the carbon balance. Empirical models were used as tools to estimate the seasonal and interannual variation of the ecosystem functional ...
Application of ecological research to the conservation efforts of
... survival of sun bear populations. The drastic levels of deforestation in Borneo have lead sun bears to experience an increase in habitat loss, which typically results in either human-conflict issues or starvation (Ngoprasert et al. 2011, Wong et al. 2005). During a documented period of low-food-ava ...
... survival of sun bear populations. The drastic levels of deforestation in Borneo have lead sun bears to experience an increase in habitat loss, which typically results in either human-conflict issues or starvation (Ngoprasert et al. 2011, Wong et al. 2005). During a documented period of low-food-ava ...
Wildlife Booklet.indd
... across the foothills, post-war harvesting for firewood and timber, altered river flows due to dam and lake construction, and the introduction of domestic stock, Rabbits and nonnative predators (Foxes and Cats). These activities have had major impacts in some areas, less in others (see Table 1). For ex ...
... across the foothills, post-war harvesting for firewood and timber, altered river flows due to dam and lake construction, and the introduction of domestic stock, Rabbits and nonnative predators (Foxes and Cats). These activities have had major impacts in some areas, less in others (see Table 1). For ex ...
Your Indigenous Garden
... It is difficult for plants and animals to adapt quickly to new conditions, resulting in a loss of biodiversity including, native species and communities. Bushfires Fire has long been part of the Australian landscape and indeed many plants are dependent on fire for seed germination. However, climate ...
... It is difficult for plants and animals to adapt quickly to new conditions, resulting in a loss of biodiversity including, native species and communities. Bushfires Fire has long been part of the Australian landscape and indeed many plants are dependent on fire for seed germination. However, climate ...
old-growth savannahs and tropical ecosystem
... never useful, but that the most commonly used physiognomic definitions of forests (based on tree cover [29]) and of savannahs (based on a combination of tree and herbaceous cover [8]) are inadequate for distinguishing old-growth savannahs from derived savannahs—the low-diversity grassdominated veget ...
... never useful, but that the most commonly used physiognomic definitions of forests (based on tree cover [29]) and of savannahs (based on a combination of tree and herbaceous cover [8]) are inadequate for distinguishing old-growth savannahs from derived savannahs—the low-diversity grassdominated veget ...
Environment
... Pioneer Species – the 1st species in an area. These are usually small and fast growing. Primary Succession – life starting in an area Secondary Succession – replacement of species after the 1st species were disrupted Example: Abandoned farmland – Lichensweeds plants shrubs forest Climax Communit ...
... Pioneer Species – the 1st species in an area. These are usually small and fast growing. Primary Succession – life starting in an area Secondary Succession – replacement of species after the 1st species were disrupted Example: Abandoned farmland – Lichensweeds plants shrubs forest Climax Communit ...
Conservation of Tropical Plant Biodiversity
... the remaining organisms. As a result of fragmentation, seedling recruitment, survivorship, and fecundity have been predicted to drop in the short term, whereas in the long term, growth rates may be reduced and detrimental genetic effects may appear (Heywood & Iriondo 2003, Gagnon et al. 2011), yet f ...
... the remaining organisms. As a result of fragmentation, seedling recruitment, survivorship, and fecundity have been predicted to drop in the short term, whereas in the long term, growth rates may be reduced and detrimental genetic effects may appear (Heywood & Iriondo 2003, Gagnon et al. 2011), yet f ...
Impacts of strong winds, heavy snow loads and soil frost
... et al. (2010) and Pinto et al. (2012), the estimates of wind risks may differ greatly, depending on the climate model and greenhouse gas scenario used as well as the storm time series studied. This uncertainty thus has to be taken into consideration when the results are interpreted and strategies fo ...
... et al. (2010) and Pinto et al. (2012), the estimates of wind risks may differ greatly, depending on the climate model and greenhouse gas scenario used as well as the storm time series studied. This uncertainty thus has to be taken into consideration when the results are interpreted and strategies fo ...
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.