Concepts in contemporary ecological theory
... Evolutionary ecology – study of living organisms within context of their total environment, with the aim of discovering how their evolved characteristics and strategies for survival contribute to their success in that environment. Combines synchronic (present-oriented) research from ecology with d ...
... Evolutionary ecology – study of living organisms within context of their total environment, with the aim of discovering how their evolved characteristics and strategies for survival contribute to their success in that environment. Combines synchronic (present-oriented) research from ecology with d ...
Food Security, Environmental Change, Biodiversity, and
... Climate change will affect supply and the ability of individuals to use food effectively by altering the conditions for food safety and changing disease pressure from vector, water, and food-borne diseases ...
... Climate change will affect supply and the ability of individuals to use food effectively by altering the conditions for food safety and changing disease pressure from vector, water, and food-borne diseases ...
Ecosystem Stability
... • Mercury has been measured in aquatic and terrestrial invertebrates, in a variety of plants, and in many higher organisms including humans. High concentrations of mercury have been associated with developmental and behavioral abnormalities, impaired reproduction and survival, and in some cases with ...
... • Mercury has been measured in aquatic and terrestrial invertebrates, in a variety of plants, and in many higher organisms including humans. High concentrations of mercury have been associated with developmental and behavioral abnormalities, impaired reproduction and survival, and in some cases with ...
Diverse ecosystems vulnerable in changing environmental conditions
... extinguish a population needed to support an ecosystem, leading to knock-on effects further up the food chain. The environment is increasingly changeable. Human activities, such as farming and the extraction of natural resources, affect the environment in many different ways, changing conditions acr ...
... extinguish a population needed to support an ecosystem, leading to knock-on effects further up the food chain. The environment is increasingly changeable. Human activities, such as farming and the extraction of natural resources, affect the environment in many different ways, changing conditions acr ...
Midterm Review
... **Review notes, assignments, and quizzes given for these topics.** *Levels of Ecological Organization organism, population, community, ecosystem, biome, biosphere ...
... **Review notes, assignments, and quizzes given for these topics.** *Levels of Ecological Organization organism, population, community, ecosystem, biome, biosphere ...
Adressing optimality principles in DGVMs: Dynamics of Carbon
... DGVMs are designed to reproduce and quantify ecosystem processes. Based on plant functions or species specific parameter sets, the energy, carbon, nitrogen and water cycles of different ecosystems are assessed. These models have been proven to be important tools to investigate ecosystem fluxes as th ...
... DGVMs are designed to reproduce and quantify ecosystem processes. Based on plant functions or species specific parameter sets, the energy, carbon, nitrogen and water cycles of different ecosystems are assessed. These models have been proven to be important tools to investigate ecosystem fluxes as th ...
Brief - nerc-bess
... different [2]. If species important for underpinning particular services are lost or decline because of environmental change, this could result in sudden declines in ecosystem services [2]. Dark Green Fritillary, Tom Oliver. However, if there are multiple species which perform a similar function, bu ...
... different [2]. If species important for underpinning particular services are lost or decline because of environmental change, this could result in sudden declines in ecosystem services [2]. Dark Green Fritillary, Tom Oliver. However, if there are multiple species which perform a similar function, bu ...
in the ACCESS Habitable Planet story 2. What are Food webs? 5
... and nutrient poor soils • SA has >20 300 plant species, of which 2 000 threatened found in Fynbos biome ...
... and nutrient poor soils • SA has >20 300 plant species, of which 2 000 threatened found in Fynbos biome ...
The Resilience of Ecological Systems
... The major consequence of this spatial variation in disturbance intensity is a corresponding heterogeneity in surviving organisms and seeds. The abundance and distribution of these leftovers from the pre-disturbance community greatly influence the speed of successional change, as well as the structur ...
... The major consequence of this spatial variation in disturbance intensity is a corresponding heterogeneity in surviving organisms and seeds. The abundance and distribution of these leftovers from the pre-disturbance community greatly influence the speed of successional change, as well as the structur ...
17 Ecosystem change and resiliency
... released in a lake where there were native turtles that preferred to prey on those fish, the resistance of that lake to the invasive fish is high. As ecologists learn more about ecosystem disturbance, resilience, and resistance, they have found that while ecosystems are often able to recover from ma ...
... released in a lake where there were native turtles that preferred to prey on those fish, the resistance of that lake to the invasive fish is high. As ecologists learn more about ecosystem disturbance, resilience, and resistance, they have found that while ecosystems are often able to recover from ma ...
Ecological resilience
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"".