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A Sensitive Ecosystem Guide - Salt Spring Island Conservancy
... Mature forest ecosystems are often found in areas surrounding or bordering other sensitive ecosystems such as old forests and wetlands. Mature forests serve as buffers for these sensitive ecosystems while providing habitat for a variety of plant and animal species. Why are Mature Forest Ecosystems i ...
... Mature forest ecosystems are often found in areas surrounding or bordering other sensitive ecosystems such as old forests and wetlands. Mature forests serve as buffers for these sensitive ecosystems while providing habitat for a variety of plant and animal species. Why are Mature Forest Ecosystems i ...
Population, community and ecosystem effects of exotic herbivores: A
... Abstract Exotic herbivores represent a serious threat to native biodiversity, producing large scale changes in native communities and altering ecosystem processes. In this special issue, we present a series of case studies and reviews from different areas of the world that highlight (1) the conseque ...
... Abstract Exotic herbivores represent a serious threat to native biodiversity, producing large scale changes in native communities and altering ecosystem processes. In this special issue, we present a series of case studies and reviews from different areas of the world that highlight (1) the conseque ...
Spatial and Temporal Dimensions of Biodiversity Dynamics
... Biodiversity dynamics during primary and secondary succession are largely determined by the life histories of the colonising species. Colonisers can be classified as the ecological types of selection r and K, according to the logistic rates of population growth. R-selected species maximise the intri ...
... Biodiversity dynamics during primary and secondary succession are largely determined by the life histories of the colonising species. Colonisers can be classified as the ecological types of selection r and K, according to the logistic rates of population growth. R-selected species maximise the intri ...
Marine Ecology Progress Series 309:175
... and recruitment (ICES 2000a), indicating that mostly density-dependent processes are regulating sole recruitment in the region, while density-independent, environmentally driven mechanisms are the dominant ones for cod and plaice recruitment. A recent analysis of long-term data collected by the MBA ...
... and recruitment (ICES 2000a), indicating that mostly density-dependent processes are regulating sole recruitment in the region, while density-independent, environmentally driven mechanisms are the dominant ones for cod and plaice recruitment. A recent analysis of long-term data collected by the MBA ...
What is hidden behind the concept of ecosystem efficiency in energy
... values to those food webs in which η1 , η2 , . . . , ηN−1 values are more uniform. According to Ricklefs (1993), η on land is generally lower than η in aquatic ecosystems and, hence, Nland < Nwater . As a matter of fact, the first energy flow from primary producers to herbivores is less efficient on ...
... values to those food webs in which η1 , η2 , . . . , ηN−1 values are more uniform. According to Ricklefs (1993), η on land is generally lower than η in aquatic ecosystems and, hence, Nland < Nwater . As a matter of fact, the first energy flow from primary producers to herbivores is less efficient on ...
NCCMA 6956 - Algae Fact Sheet
... Blue-Green Algae (Cyanobacteria) -What makes this particular type of algae unique is that it is actually a bacteria that has the ability to photosynthesize. It is one of the most commonly known types of algae, probably due to the toxic conditions some species can create when they bloom. An algal blo ...
... Blue-Green Algae (Cyanobacteria) -What makes this particular type of algae unique is that it is actually a bacteria that has the ability to photosynthesize. It is one of the most commonly known types of algae, probably due to the toxic conditions some species can create when they bloom. An algal blo ...
Coral Bleaching
... that can withstand the environmental stress. Some studies have shown an increased tolerance in certain coral species (Maynard et al. 2008) when comparing the damage from a bleaching event in 1998 and a bleaching event in 2002. Another study (McClanahan et al 2007) showed that some corals seem to ...
... that can withstand the environmental stress. Some studies have shown an increased tolerance in certain coral species (Maynard et al. 2008) when comparing the damage from a bleaching event in 1998 and a bleaching event in 2002. Another study (McClanahan et al 2007) showed that some corals seem to ...
Biodiversity and the functioning of seagrass ecosystems
... biogenic habitat (Watling & Norse 1998, Thrush & Dayton 2002). These impacts, along with pollution, have caused major changes in abundance, species composition, and structure of marine communities, including regional and even global extinctions (Carlton et al. 1999, Jackson et al. 2001). Of the seve ...
... biogenic habitat (Watling & Norse 1998, Thrush & Dayton 2002). These impacts, along with pollution, have caused major changes in abundance, species composition, and structure of marine communities, including regional and even global extinctions (Carlton et al. 1999, Jackson et al. 2001). Of the seve ...
Prescription for Great Lakes Ecosystem Protection and Restoration
... larger quantities of fish than the system can sustain naturally); (2) nutrient loading (i.e., addition of phosphorus and nitrogen in excess of natural levels, usually via human waste and urban and agricultural runoff); (3) the release of toxic chemicals (e.g., mercury, polychlorinated biphenyls (PCB ...
... larger quantities of fish than the system can sustain naturally); (2) nutrient loading (i.e., addition of phosphorus and nitrogen in excess of natural levels, usually via human waste and urban and agricultural runoff); (3) the release of toxic chemicals (e.g., mercury, polychlorinated biphenyls (PCB ...
Green Growth and Water Raekwon Chung Director Environment and Development
... •About 50 million tons of avoided CO2 emission can be achieved. •Overall, the environmental quality improvement and a positive impact on the macroeconomic arena can be expected ...
... •About 50 million tons of avoided CO2 emission can be achieved. •Overall, the environmental quality improvement and a positive impact on the macroeconomic arena can be expected ...
Variability and shifts in marine ecosystems
... and attributing effects of climate change (whether in distribution, abundance or phenology) (mention Perkinsus – oyster parasite, as a good example which combines observation and modelling to determine causes) The geographic and biotic coverage of this presentation is itself limited ...
... and attributing effects of climate change (whether in distribution, abundance or phenology) (mention Perkinsus – oyster parasite, as a good example which combines observation and modelling to determine causes) The geographic and biotic coverage of this presentation is itself limited ...
Predicting Changes in Community Composition and Ecosystem
... response of plants to environmental factors such as resources and disturbances (response traits), and traits that determine effects of plants on ecosystem functions (effect traits), such as biogeochemical cycling or propensity to disturbance, remains rudimentary. 2. We present a framework using conc ...
... response of plants to environmental factors such as resources and disturbances (response traits), and traits that determine effects of plants on ecosystem functions (effect traits), such as biogeochemical cycling or propensity to disturbance, remains rudimentary. 2. We present a framework using conc ...
The relationship between biodiversity and ecosystem functioning in
... profound impacts on functioning of natural and managed ecosystems and the ability of ecosystems to deliver ecological services to human societies. Work on simplified ecosystems in which the diversity of a single trophic level is manipulated shows that diversity can enhance ecosystem processes such as ...
... profound impacts on functioning of natural and managed ecosystems and the ability of ecosystems to deliver ecological services to human societies. Work on simplified ecosystems in which the diversity of a single trophic level is manipulated shows that diversity can enhance ecosystem processes such as ...
- Wiley Online Library
... 1. Top-down control can be an important determinant of ecosystem structure and function, but in oceanic ecosystems, where cascading effects of predator depletions, recoveries, and invasions could be significant, such effects had rarely been demonstrated until recently. 2. Here we synthesize the evid ...
... 1. Top-down control can be an important determinant of ecosystem structure and function, but in oceanic ecosystems, where cascading effects of predator depletions, recoveries, and invasions could be significant, such effects had rarely been demonstrated until recently. 2. Here we synthesize the evid ...
Cascading top-down effects of changing oceanic predator
... 1. Top-down control can be an important determinant of ecosystem structure and function, but in oceanic ecosystems, where cascading effects of predator depletions, recoveries, and invasions could be significant, such effects had rarely been demonstrated until recently. 2. Here we synthesize the evid ...
... 1. Top-down control can be an important determinant of ecosystem structure and function, but in oceanic ecosystems, where cascading effects of predator depletions, recoveries, and invasions could be significant, such effects had rarely been demonstrated until recently. 2. Here we synthesize the evid ...
4. Mechanisms involved in salt-marsh rejuvenation J.P. Bakker
... elevation, and sufficient silt availability, the capacity of Spartina anglica to alter the environment is crucial to set off rapid marsh formation. This small-scale ‘ecosystem engineering’ of Spartina induces several other processes, sometimes with large-scale consequences. First, by reducing curren ...
... elevation, and sufficient silt availability, the capacity of Spartina anglica to alter the environment is crucial to set off rapid marsh formation. This small-scale ‘ecosystem engineering’ of Spartina induces several other processes, sometimes with large-scale consequences. First, by reducing curren ...
Towards a framework for assessment and management of
... Abstract: Effective ecosystem-based management requires understanding ecosystem responses to multiple human threats, rather than focusing on single threats. To understand ecosystem responses to anthropogenic threats holistically, it is necessary to know how threats affect different components within ...
... Abstract: Effective ecosystem-based management requires understanding ecosystem responses to multiple human threats, rather than focusing on single threats. To understand ecosystem responses to anthropogenic threats holistically, it is necessary to know how threats affect different components within ...
Academic Advisors Environmental and Sustainability Sciences (ESS
... interactions between poverty reduction and environmental management in rural areas of developing countries, with an emphasis on modeling and policy related to coupled human and natural systems in the low-income tropics. AEM 2000: Contemporary Controversies in the Global ...
... interactions between poverty reduction and environmental management in rural areas of developing countries, with an emphasis on modeling and policy related to coupled human and natural systems in the low-income tropics. AEM 2000: Contemporary Controversies in the Global ...
Environmental Systems and Societies Chapter 2
... species may decline or they may have to switch food source. Similarly, seals will have to rely more on herring, possibly reducing their numbers or they may also have to switch food source. The amount of zooplankton may increase, improving food supply for jellyfish and herring. An estimated 1000 kg o ...
... species may decline or they may have to switch food source. Similarly, seals will have to rely more on herring, possibly reducing their numbers or they may also have to switch food source. The amount of zooplankton may increase, improving food supply for jellyfish and herring. An estimated 1000 kg o ...
Biotic and abiotic components - Pearson Schools and FE Colleges
... species may decline or they may have to switch food source. Similarly, seals will have to rely more on herring, possibly reducing their numbers or they may also have to switch food source. The amount of zooplankton may increase, improving food supply for jellyfish and herring. An estimated 1000 kg o ...
... species may decline or they may have to switch food source. Similarly, seals will have to rely more on herring, possibly reducing their numbers or they may also have to switch food source. The amount of zooplankton may increase, improving food supply for jellyfish and herring. An estimated 1000 kg o ...
The Scale of Successional Models and Restoration Objectives
... have been developed on different spatial and temporal scales and consequently emphasize different types of dynamics. This paper focuses on the restoration goal of self-sustainability, but only in the context of a long-term goal. Because of the temporal scale of this goal, we must consider the impact ...
... have been developed on different spatial and temporal scales and consequently emphasize different types of dynamics. This paper focuses on the restoration goal of self-sustainability, but only in the context of a long-term goal. Because of the temporal scale of this goal, we must consider the impact ...
What are Indicators? - UL Sustainable Development
... • Need to be able to benchmark progress, identify which policies and actions have been successful. • Policy-makers need justification especially if something new is proposed and this justification must be documented and come from a trustworthy source. ...
... • Need to be able to benchmark progress, identify which policies and actions have been successful. • Policy-makers need justification especially if something new is proposed and this justification must be documented and come from a trustworthy source. ...
A Course Material on ENVIRONMENTAL SCIENCE AND
... The word environment is derived from the French word „environ‟ which means to „encircle or surround‟. Objective of this course is to develop concern for our own environment which will lead us to act at our own level to protect the environment we all live in. Ever since people first recognized that t ...
... The word environment is derived from the French word „environ‟ which means to „encircle or surround‟. Objective of this course is to develop concern for our own environment which will lead us to act at our own level to protect the environment we all live in. Ever since people first recognized that t ...
Changes in community structure in temperate marine reserves
... more abundant inside reserves than in adjacent unprotected areas. Overall, P auratus were also much larger inside reserves with mean total lengths of 316 mm compared with 186 mm in fished areas. The spiny lobster Jasus edwardsii displayed similar trends, and was approximately 1.6 to 3.7 times more a ...
... more abundant inside reserves than in adjacent unprotected areas. Overall, P auratus were also much larger inside reserves with mean total lengths of 316 mm compared with 186 mm in fished areas. The spiny lobster Jasus edwardsii displayed similar trends, and was approximately 1.6 to 3.7 times more a ...
Ecology - Make Me Genius
... live in 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, a ...
... live in 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, a ...
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"".