Kelp Forest The Monterey Bay National Marine Sanctuary
... One important ecological role is known as a keystone species. The term keystone comes from the name of a stone used when constructing stone arches. This important stone holds the other stones in place. Similarly, keystone species play an important role in maintaining a community of organisms. Not al ...
... One important ecological role is known as a keystone species. The term keystone comes from the name of a stone used when constructing stone arches. This important stone holds the other stones in place. Similarly, keystone species play an important role in maintaining a community of organisms. Not al ...
Environment and Ecology
... B. Explain how species of living organisms adapt to their environment. • Explain the role of individual variations in natural selection. • Explain how an adaptation is an inherited structure or behavior that helps an organism survive and reproduce. • Describe how a particular trait may be selected o ...
... B. Explain how species of living organisms adapt to their environment. • Explain the role of individual variations in natural selection. • Explain how an adaptation is an inherited structure or behavior that helps an organism survive and reproduce. • Describe how a particular trait may be selected o ...
Comparative Cryptogam Ecology: A Review of Bryophyte and
... little is known about the role and applicability of functional traits of non-vascular cryptogams, particularly bryophytes and lichens, with respect to biogeochemical cycling. Yet these organisms are paramount determinants of biogeochemistry in several biomes, particularly cold biomes and tropical ra ...
... little is known about the role and applicability of functional traits of non-vascular cryptogams, particularly bryophytes and lichens, with respect to biogeochemical cycling. Yet these organisms are paramount determinants of biogeochemistry in several biomes, particularly cold biomes and tropical ra ...
Ecosystems - Environmental
... Living in the Environment 13th Edition MATES Chapter 4 SPRAGUE ENV MATES ...
... Living in the Environment 13th Edition MATES Chapter 4 SPRAGUE ENV MATES ...
Ecology and Ecosystems
... If presentations are chosen, an assessor observation checklist along with copies of the presentations should be retained as evidence of performance for each learner. Where a learner does not meet the required standard they will be given the chance to either reattempt the same topics, or to undertake ...
... If presentations are chosen, an assessor observation checklist along with copies of the presentations should be retained as evidence of performance for each learner. Where a learner does not meet the required standard they will be given the chance to either reattempt the same topics, or to undertake ...
Pollution, habitat loss, fishing, and climate change as critical threats
... single model taxonomic group, the penguins (Spheniscidae), to explore how marine species and communities might be at risk of decline or extinction in the southern hemisphere. We sought to determine the most important threats to penguins and to suggest means to mitigate these threats. Our review has ...
... single model taxonomic group, the penguins (Spheniscidae), to explore how marine species and communities might be at risk of decline or extinction in the southern hemisphere. We sought to determine the most important threats to penguins and to suggest means to mitigate these threats. Our review has ...
Human Involvement in Food Webs
... to plants, inter alia. Food webs are a synthesis of bottom-up energy and nutrient flow from plant producers to consumers and top-down regulation of producers by consumers. The trophic cascade is the simplest topdown interaction and accounts for a great deal of what is known about food webs. In three- ...
... to plants, inter alia. Food webs are a synthesis of bottom-up energy and nutrient flow from plant producers to consumers and top-down regulation of producers by consumers. The trophic cascade is the simplest topdown interaction and accounts for a great deal of what is known about food webs. In three- ...
Microbial associations with macrobiota in coastal ecosystems
... in coastal N processing, highlighting where these associations could be important at an ecosystem level. Although N is a key element in amino acids and therefore critical to all life on Earth, the N cycle includes multiple transformations (eg N fixation, nitrification, denitrification, dissimilator ...
... in coastal N processing, highlighting where these associations could be important at an ecosystem level. Although N is a key element in amino acids and therefore critical to all life on Earth, the N cycle includes multiple transformations (eg N fixation, nitrification, denitrification, dissimilator ...
Riverine Ecosystems in International Law
... oceanic changes. Watersheds are expected to respond to climate change through precipitation and species distribution.6 Changes in ocean conditions, such as pollution, rising water temperatures, changing current patterns, and overharvest of marine resources, may have direct consequences in estuaries ...
... oceanic changes. Watersheds are expected to respond to climate change through precipitation and species distribution.6 Changes in ocean conditions, such as pollution, rising water temperatures, changing current patterns, and overharvest of marine resources, may have direct consequences in estuaries ...
An experimental framework to identify community functional
... traits, CWM can only be calculated for a single trait. If more than one trait is important for the ecosystem process of interest, we envisage two possible scenarios. First, when the effect traits considered are correlated to each other (Díaz et al. 2004; Wright et al. 2004), reduction of dimensional ...
... traits, CWM can only be calculated for a single trait. If more than one trait is important for the ecosystem process of interest, we envisage two possible scenarios. First, when the effect traits considered are correlated to each other (Díaz et al. 2004; Wright et al. 2004), reduction of dimensional ...
Definitions, Categories and Criteria for Threatened and Priority
... “Any process or activity that threatens to destroy or significantly modify the ecological community and/or affect the continuing evolutionary processes within any ecological community.” Examples of some of the continuing threatening processes in Western Australia include: general pollution; competit ...
... “Any process or activity that threatens to destroy or significantly modify the ecological community and/or affect the continuing evolutionary processes within any ecological community.” Examples of some of the continuing threatening processes in Western Australia include: general pollution; competit ...
The biology of coral reefs
... The seaweed is fast growing and tangles itself around the coral. By smothering the coral, it stops the photosynthetic reactions in the zooxanthellae, and suffocates the coral polyps. Natural disturbances such as storms or hurricanes bring extreme wave conditions to the reefs which break the coral in ...
... The seaweed is fast growing and tangles itself around the coral. By smothering the coral, it stops the photosynthetic reactions in the zooxanthellae, and suffocates the coral polyps. Natural disturbances such as storms or hurricanes bring extreme wave conditions to the reefs which break the coral in ...
BAILS et al 2005 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 ...
The Construction of a Resource-saving Society in Hubei Based on
... The results of regression model show that population per capita GDP industry accounted for the proportion of GDP, the level of urbanization are factors that affect the ecological footprint. Hubei's economic growth, upgrade the industrial structure, speeding up the urbanization process and rising con ...
... The results of regression model show that population per capita GDP industry accounted for the proportion of GDP, the level of urbanization are factors that affect the ecological footprint. Hubei's economic growth, upgrade the industrial structure, speeding up the urbanization process and rising con ...
Stachowicz Annual Reviews - Virginia Institute of Marine Science
... marine systems to develop new frontiers in our understanding of the ecological consequences of biodiversity. For example, the stronger top-down control in the sea relative to terrestrial habitats (Shurin et al. 2002) suggests that traditional measures of ecosystem function such as production or biom ...
... marine systems to develop new frontiers in our understanding of the ecological consequences of biodiversity. For example, the stronger top-down control in the sea relative to terrestrial habitats (Shurin et al. 2002) suggests that traditional measures of ecosystem function such as production or biom ...
Networking Agroecology: Integrating the Diversity of Agroecosystem
... (but see Pocock et al., 2012). Simply reversing some of the processes of intensification, by reducing inputs, increasing landscape diversity and increasing on-farm plant diversity, might not be enough. For example, in a grassland experiment, plant diversity in plots that received high rates of nitro ...
... (but see Pocock et al., 2012). Simply reversing some of the processes of intensification, by reducing inputs, increasing landscape diversity and increasing on-farm plant diversity, might not be enough. For example, in a grassland experiment, plant diversity in plots that received high rates of nitro ...
student resources - Santa Ana Unified School District
... defined area is considered to be a population. Thus, when discussing a population, an ecologist will identify both the organism and the place. ...
... defined area is considered to be a population. Thus, when discussing a population, an ecologist will identify both the organism and the place. ...
This article appeared in a journal published by Elsevier. The... copy is furnished to the author for internal non-commercial research
... charged with protecting them need effective ways to minimise the decline and aid their recovery. Ultimately, such solutions must integrate social perspectives of people who depend on and use these ecosystems together with the biological aspects that drive coral reef ecosystems [2]. Without a better ...
... charged with protecting them need effective ways to minimise the decline and aid their recovery. Ultimately, such solutions must integrate social perspectives of people who depend on and use these ecosystems together with the biological aspects that drive coral reef ecosystems [2]. Without a better ...
Niche Construction Theory: A Practical Guide for Ecologists
... the informed (i.e., based on genetic or acquired information) physical “work” of organisms. It includes the metabolic, physiological, and behavioral activities of organisms, as well as their choices. For example, many species of animals manufacture nests, burrows, holes, webs, and pupal cases; algae ...
... the informed (i.e., based on genetic or acquired information) physical “work” of organisms. It includes the metabolic, physiological, and behavioral activities of organisms, as well as their choices. For example, many species of animals manufacture nests, burrows, holes, webs, and pupal cases; algae ...
Concept Note Pollination
... Pollinators are facing a multitude of threats, many of which derive from urbanisation and agriculture. Loss of habitat: Urbanisation, agricultural intensification and a shift to largescale monocultures reduce nesting sites and food resources for pollinators, and lead to fragmentation and the loss of ...
... Pollinators are facing a multitude of threats, many of which derive from urbanisation and agriculture. Loss of habitat: Urbanisation, agricultural intensification and a shift to largescale monocultures reduce nesting sites and food resources for pollinators, and lead to fragmentation and the loss of ...
ppt
... to change than less diverse communities. They provide ‘ecosystem services’ like cleaning water, cleaning air, fertilizing soils, and producing food more effectively than low diversity systems. Resistance to change means they are more stable – more sustainable over time. ...
... to change than less diverse communities. They provide ‘ecosystem services’ like cleaning water, cleaning air, fertilizing soils, and producing food more effectively than low diversity systems. Resistance to change means they are more stable – more sustainable over time. ...
Plant genotype and nitrogen loading influence seagrass productivity
... assess their relative contribution to ecosystem functioning in comparison to other factors. Here we used a mesocosm experiment to examine the relative influence of genotypic identity and extreme levels of nitrogen loading on traits that affect ecological processes (at the population, community, and e ...
... assess their relative contribution to ecosystem functioning in comparison to other factors. Here we used a mesocosm experiment to examine the relative influence of genotypic identity and extreme levels of nitrogen loading on traits that affect ecological processes (at the population, community, and e ...
Primary Succession and Ecosystem Rehabilitation
... terraforming the moon or Mars will certainly be based on the principles of primary succession. Such activities – at any scale – will become an increasing part of our global economy. Preservation or rehabilitation of ecosystem services following a disturbance can have positive influences. For example ...
... terraforming the moon or Mars will certainly be based on the principles of primary succession. Such activities – at any scale – will become an increasing part of our global economy. Preservation or rehabilitation of ecosystem services following a disturbance can have positive influences. For example ...
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"".