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The roles of productivity and ecosystem size in determining food
... vegetation surveys, and (3) targeted surveys of abundance of Dysmicoccus sp. and Phisis holdhausi, two particularly abundant and easily surveyed insects in the system (sampling details for all methods in Appendix C). We focused on arthropods as they make up the vast majority of free-living terrestri ...
... vegetation surveys, and (3) targeted surveys of abundance of Dysmicoccus sp. and Phisis holdhausi, two particularly abundant and easily surveyed insects in the system (sampling details for all methods in Appendix C). We focused on arthropods as they make up the vast majority of free-living terrestri ...
Terrestrial Habitat, Ecosystem and Plants Technical Report
... substantial differences in the rates or frequencies of change in the key ecosystem drivers. Ecosystem diversity: The number of different ecosystem types and the distribution of area amongst them, at various ecosystem levels. Ecosystem function: The outcomes of ecosystem patterns and processes viewed ...
... substantial differences in the rates or frequencies of change in the key ecosystem drivers. Ecosystem diversity: The number of different ecosystem types and the distribution of area amongst them, at various ecosystem levels. Ecosystem function: The outcomes of ecosystem patterns and processes viewed ...
Ecosystems - Oxford University Press
... »» explain the development of strategies for managing natural events in Australian ecosystems »» describe the contribution of scientific developments in agricultural practices »» research Australian contributions to the study of ecology and human impacts on the environment (additional) ...
... »» explain the development of strategies for managing natural events in Australian ecosystems »» describe the contribution of scientific developments in agricultural practices »» research Australian contributions to the study of ecology and human impacts on the environment (additional) ...
The Science of Ecology for a Sustainable World
... habits and plant production in relation to seasonal rhythm, climate fluctuations, and other physical constraints. The establishment of agriculture required that knowledge about plants and animals, in relation to the physical environment, became enlarged, to allow domestication. During the course of ...
... habits and plant production in relation to seasonal rhythm, climate fluctuations, and other physical constraints. The establishment of agriculture required that knowledge about plants and animals, in relation to the physical environment, became enlarged, to allow domestication. During the course of ...
Is the role of trophic control larger in a stressed ecosystem?
... Earlier, we have shown that a higher average positional keystone index of trophic components leads to less reliable energy flows through a food web (Jordán and Molnár 1999, Jordán et al. 1999). This means that the food supply of higher consumers is more secure if points in the flow network are of si ...
... Earlier, we have shown that a higher average positional keystone index of trophic components leads to less reliable energy flows through a food web (Jordán and Molnár 1999, Jordán et al. 1999). This means that the food supply of higher consumers is more secure if points in the flow network are of si ...
Final Report - Rufford Small Grants
... but longer-term, ecological benefits and off-site values. The non-market values, for example species biodiversity and off-site functions such as nutrient export are not easily quantified, but have been shown to be significant. The total economic value of mangroves must be calculated in order to prov ...
... but longer-term, ecological benefits and off-site values. The non-market values, for example species biodiversity and off-site functions such as nutrient export are not easily quantified, but have been shown to be significant. The total economic value of mangroves must be calculated in order to prov ...
Ecology Review - Science
... an area and the nonliving features of their environment • Habitat - place where an organism lives and that provides the types of food, shelter, moisture, and temperature needed for survival • Niche - in an ecosystem, refers to the unique ways an organism survives, obtains food and shelter, and avoid ...
... an area and the nonliving features of their environment • Habitat - place where an organism lives and that provides the types of food, shelter, moisture, and temperature needed for survival • Niche - in an ecosystem, refers to the unique ways an organism survives, obtains food and shelter, and avoid ...
PDF
... since 2014. Approximately, 80% of the 2014 Polish Baltic Sea fishery revenue came from these three species. In the model, the fishing fleet consists of vessels that optimize individual behavior subject to regulations, feasibility constraints (maximum days the vessel can spend at sea), owned capital, ...
... since 2014. Approximately, 80% of the 2014 Polish Baltic Sea fishery revenue came from these three species. In the model, the fishing fleet consists of vessels that optimize individual behavior subject to regulations, feasibility constraints (maximum days the vessel can spend at sea), owned capital, ...
(2008) The utility of crop genetic diversity in maintaining ecosystem
... diversity to ecosystem functioning in agricultural production systems is variable, but can be substantial, and occurs at the genetic, as well as species, level in cropping systems. In particular, we identify the potential benefits of crop genetic diversity in enhancing agroecosystem functioning and ...
... diversity to ecosystem functioning in agricultural production systems is variable, but can be substantial, and occurs at the genetic, as well as species, level in cropping systems. In particular, we identify the potential benefits of crop genetic diversity in enhancing agroecosystem functioning and ...
Ecological Integrity in British Columbia`s Parks and Protected Areas
... BC Parks is committed to the proactive stewardship of ecological integrity (EI). EI is an important concept that drives management direction in many protected areas to ensure natural areas are well managed into the future. It provides strong justification for such actions as adapting to climate chan ...
... BC Parks is committed to the proactive stewardship of ecological integrity (EI). EI is an important concept that drives management direction in many protected areas to ensure natural areas are well managed into the future. It provides strong justification for such actions as adapting to climate chan ...
Biology B Ecology
... Biology Module B: Ecology, is one of four sections of Module B of the Biology Keystone Exam. The content and assignments are organized in a manner consistent with the Pennsylvania Keystone Biology blueprint. In Biology Module B, the theme of continuity and unity of life is explored through four big ...
... Biology Module B: Ecology, is one of four sections of Module B of the Biology Keystone Exam. The content and assignments are organized in a manner consistent with the Pennsylvania Keystone Biology blueprint. In Biology Module B, the theme of continuity and unity of life is explored through four big ...
The Global Action Plan for Coral Reefs
... • Lack of recognition within many levels of government of the social and economic importance of coral reef ecosystems • Lack of political will • Major capacity gaps in governance and enforcement • Establishment of sustainable national level funding is hindered by the need for the introduction of str ...
... • Lack of recognition within many levels of government of the social and economic importance of coral reef ecosystems • Lack of political will • Major capacity gaps in governance and enforcement • Establishment of sustainable national level funding is hindered by the need for the introduction of str ...
Staghorn CoralS and Climate Change
... When water temperature increases, the algal symbionts photosynthesise more quickly. This increases the amount of oxygen they produce which can increase to toxic levels within the corals’ tissues. To survive, corals expel most, if not all, of the algae from their tissues, thereby losing their source ...
... When water temperature increases, the algal symbionts photosynthesise more quickly. This increases the amount of oxygen they produce which can increase to toxic levels within the corals’ tissues. To survive, corals expel most, if not all, of the algae from their tissues, thereby losing their source ...
Conservation of Pulau Payar Marine Park and Optical
... Two years later the situation had not improved. An estimated 10 percent of the world's reefs have already been lost and 60 percent are threatened by bleaching, disease and a variety of human activities including shoreline development, polluted runoff from agricultural and land-use practices, ship gr ...
... Two years later the situation had not improved. An estimated 10 percent of the world's reefs have already been lost and 60 percent are threatened by bleaching, disease and a variety of human activities including shoreline development, polluted runoff from agricultural and land-use practices, ship gr ...
Communicating the properties of marine organisms as the second
... Helgoland Roads Zooplankton NICHE model requirements individual, inter-individual and community properties The second dimension of biodiversity ...
... Helgoland Roads Zooplankton NICHE model requirements individual, inter-individual and community properties The second dimension of biodiversity ...
land based activities and sources of pollution to the marine, coastal
... around Mombasa enters the creek system. The rapid mixing of oxygenated marine water and contaminated creek water rapidly attenuates the high levels of BOD, limiting its impact on coastal habitats. Industrial sources account for 62% of the annual suspended solid load (more than 20,000 tonnes per year ...
... around Mombasa enters the creek system. The rapid mixing of oxygenated marine water and contaminated creek water rapidly attenuates the high levels of BOD, limiting its impact on coastal habitats. Industrial sources account for 62% of the annual suspended solid load (more than 20,000 tonnes per year ...
Prairie Ecosystem Management - Alberta Prairie Conservation Forum
... The flood frequency curve indicates how often a flood of a certain magnitude has occurred over the period of record. The area under this curve can be considered the range of variation. Data show that when a dam is placed on a river, downstream annual floods below the one-in-two year return interval ...
... The flood frequency curve indicates how often a flood of a certain magnitude has occurred over the period of record. The area under this curve can be considered the range of variation. Data show that when a dam is placed on a river, downstream annual floods below the one-in-two year return interval ...
Sustainable Development Strategy for the Seas of East Asia
... Other wetlands - Wetlands as defined by the Ramsar Convention (areas of marsh, fen, peatland or water, whether natural or artificial, permanent or temporary, with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide do not exceed 6 ...
... Other wetlands - Wetlands as defined by the Ramsar Convention (areas of marsh, fen, peatland or water, whether natural or artificial, permanent or temporary, with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide do not exceed 6 ...
Chapter 4 Part 2 - Learn District 196
... gazelle wakes up. It knows it must run faster than the fastest lion or it will be killed. Every morning a lion wakes up. It knows it must outrun the slowest gazelle or it will starve to death. The moral: It doesn’t matter if you are a lion or a gazelle. When the sun comes up, you better be running. ...
... gazelle wakes up. It knows it must run faster than the fastest lion or it will be killed. Every morning a lion wakes up. It knows it must outrun the slowest gazelle or it will starve to death. The moral: It doesn’t matter if you are a lion or a gazelle. When the sun comes up, you better be running. ...
Revisiting Carrying Capacity: Area-Based Indicators of Sustainability
... without permanently impairing the productivity of that habitat. However, because of our seeming ability to increase our own carrying capacity by eliminating competing species, by importing locally scarce resources, and through technology, this definition seems irrelevant to humans. Indeed, trade and ...
... without permanently impairing the productivity of that habitat. However, because of our seeming ability to increase our own carrying capacity by eliminating competing species, by importing locally scarce resources, and through technology, this definition seems irrelevant to humans. Indeed, trade and ...
Ecological resilience
![](https://commons.wikimedia.org/wiki/Special:FilePath/Resilience1.jpg?width=300)
In ecology, resilience is the capacity of an ecosystem to respond to a perturbation or disturbance by resisting damage and recovering quickly. Such perturbations and disturbances can include stochastic events such as fires, flooding, windstorms, insect population explosions, and human activities such as deforestation, fracking of the ground for oil extraction, pesticide sprayed in soil, and the introduction of exotic plant or animal species. Disturbances of sufficient magnitude or duration can profoundly affect an ecosystem and may force an ecosystem to reach a threshold beyond which a different regime of processes and structures predominates. Human activities that adversely affect ecosystem resilience such as reduction of biodiversity, exploitation of natural resources, pollution, land-use, and anthropogenic climate change are increasingly causing regime shifts in ecosystems, often to less desirable and degraded conditions. Interdisciplinary discourse on resilience now includes consideration of the interactions of humans and ecosystems via socio-ecological systems, and the need for shift from the maximum sustainable yield paradigm to environmental resource management which aims to build ecological resilience through ""resilience analysis, adaptive resource management, and adaptive governance"".