what is the difference between primary productivity and standing stock?
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What is the difference between primary productivity and standing stock? Primary productivity refers to the amount of new organic matter being manufactured while standing stock is the baseline biomass or amount of phytoplankton already present in the ocean.
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Natural resources can be classified as potential, actual, reserve, or stock resources based on their stage of development. Natural resources are either renewable or non-renewable depending on whether or not they replenish naturally.
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Primary prodution is usually exclusively reserved for plants and autotrophs. Basically anything that can produce energy from sunlight. ... Secondary production is a misleading name because it refers to the first consumer of energy. This organism will consume a primary producer.
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In aquatic ecosystems, primary productivity is driven by the availability of nutrients and light and, to a lesser extent, by temperature and other factors. Primary productivity is important because it is the process that forms the foundation of food webs in most ecosystems.
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What is the major difference between the productivity standard and the egalitarian principle? Question 8 options: The egalitarian principle bases income according to the contribution to society's total output while the productivity standard bases income on the ideal of equality for everyone.
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Net productivity is lower: it's gross productivity adjusted for the energy used by the organisms in respiration/metabolism, so it reflects the amount of energy stored as biomass. Energy transfer between trophic levels is not very efficient.
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Gross primary production (GPP) is the total rate at which material is produced and net primary production (NPP) is the rate at which material is accumulated in excess of respiration. In other words, NPP is GPP minus respiration.
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(Ecological) Productivity: Biodiversity is a measure of the complexity of interactions in a given habitat or ecosystem. ... The more biomass (living organisms and organic matter) produced, the greater the productivity.
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Gross primary production (GPP) is the total rate at which material is produced and net primary production (NPP) is the rate at which material is accumulated in excess of respiration. In other words, NPP is GPP minus respiration. See Section 1.2. 3c.
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Net primary productivity varies among ecosystems and depends on many factors. These include solar energy input, temperature and moisture levels, carbon dioxide levels, nutrient availability, and community interactions (e.g., grazing by herbivores) 2.
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Biomass Productivity. Net biomass productivity is the difference between gross productivity (production of plant material by photosynthesis) and respiration. So long as the rate of production exceeds that of respiration, the plant will grow. Net productivity represents the amount of organic material produced by a plant ...
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Standby Power - When a generator is used as a backup to mains supply power. Prime Power - When a generator is used as a primary power source.
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consumptive use is applied to bacteria, whereas productive use is applied to primary consumers. c. consumptive use refers to the use of natural systems for basic human needs, while productive use implies use for economic gain.
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For example, fish are renewable resources. That's because they can reproduce and make more fish.
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Gross primary production (GPP) is the total rate at which material is produced and net primary production (NPP) is the rate at which material is accumulated in excess of respiration. In other words, NPP is GPP minus respiration. See Section 1.2.
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Biodiversity was linked to an increased temporal stability of primary productivity, which again suggests that BEF relationships observed in experiments with small plots (2) also apply in natural systems at the landscape scale.
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Primary productivity is the process resulting from photosynthetic activity of the plants and determines biomass accumulation in forests. Net primary productivity (NPP) represents the difference between gross photosynthesis of plant foliage and energy losses due to respiration and mortality of plant tissues.