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- Ecological_efficiency abstract "Ecological efficiency describes the efficiency with which energy is transferred from one trophic level to the next. It is determined by a combination of efficiencies relating to organismic resource acquisition and assimilation in an ecosystem.Primary production occurs in autotrophic organisms of an ecosystem. Photoautotrophs such as vascular plants and algae convert energy from the sun into energy stored as carbon compounds. Photosynthesis is carried out in the chlorophyll of green plants. The energy converted through photosynthesis is carried through the trophic levels of an ecosystem as organisms consume members of lower trophic levels.Dmitri thought that the primary production can be broken down into gross and net primary production. Gross primary production is a measure of the energy that a photoautotroph harvests from the sun. Take, for example, a blade of grass that takes in x Joules of energy from the sun. The fraction of that energy that is converted into glucose reflects the gross productivity of the blade of grass. The energy remaining after respiration is considered the net primary production. In general, gross production refers to the energy contained within an organism before respiration and net production the energy after respiration. The terms can be used to describe energy transfer in both autotrophs and heterotrophs.Energy transfer between trophic levels is generally inefficient, such that net production at one trophic level is generally only 10% of the net production at the preceding trophic level (the Ten percent law, first formulated by Raymond Lindeman). Due to non-predatory death, egestion, and respiration, a significant amount of energy is lost to the environment instead of being absorbed for production by consumers. The figure approximates the fraction of energy available after each stage of energy loss in a typical ecosystem, although these fractions vary greatly from ecosystem to ecosystem and from trophic level to trophic level. The loss of energy by a factor of one half from each of the steps of non-predatory death, defecation, and respiration is typical of many living systems. Thus, the net production at one trophic level is approximately ten percent that of the trophic level before it.Example: Assume 500 units of energy are produced by trophic level 1. One half of that is lost to non-predatory death, while the other half (250 units) is ingested by trophic level 2. One half of the amount ingested is expelled through defecation, leaving the other half (125 units) to be assimilated by the organism. Finally one half of the remaining energy is lost through respiration while the rest (63 units) is used for growth and reproduction. This energy expended for growth and reproduction constitutes to the net production of trophic level 1.".
- Ecological_efficiency wikiPageID "22623677".
- Ecological_efficiency wikiPageLength "7781".
- Ecological_efficiency wikiPageOutDegree "23".
- Ecological_efficiency wikiPageRevisionID "626625345".
- Ecological_efficiency wikiPageWikiLink Agricultural_science.
- Ecological_efficiency wikiPageWikiLink Algae.
- Ecological_efficiency wikiPageWikiLink Autotroph.
- Ecological_efficiency wikiPageWikiLink BTU.
- Ecological_efficiency wikiPageWikiLink British_thermal_unit.
- Ecological_efficiency wikiPageWikiLink Carbon_compounds.
- Ecological_efficiency wikiPageWikiLink Category:Trophic_ecology.
- Ecological_efficiency wikiPageWikiLink Chlorophyll.
- Ecological_efficiency wikiPageWikiLink Compounds_of_carbon.
- Ecological_efficiency wikiPageWikiLink Consumer.
- Ecological_efficiency wikiPageWikiLink Ecosystem.
- Ecological_efficiency wikiPageWikiLink Efficiency.
- Ecological_efficiency wikiPageWikiLink Energy.
- Ecological_efficiency wikiPageWikiLink Glucose.
- Ecological_efficiency wikiPageWikiLink Heterotroph.
- Ecological_efficiency wikiPageWikiLink Joule.
- Ecological_efficiency wikiPageWikiLink Photoautotroph.
- Ecological_efficiency wikiPageWikiLink Photosynthesis.
- Ecological_efficiency wikiPageWikiLink Phototroph.
- Ecological_efficiency wikiPageWikiLink Primary_production.
- Ecological_efficiency wikiPageWikiLink Raymond_Lindeman.
- Ecological_efficiency wikiPageWikiLink Ten_percent_law.
- Ecological_efficiency wikiPageWikiLink Trophic_level.
- Ecological_efficiency wikiPageWikiLink Vascular_plant.
- Ecological_efficiency wikiPageWikiLinkText "Ecological efficiency".
- Ecological_efficiency wikiPageWikiLinkText "ecological efficiency".
- Ecological_efficiency wikiPageWikiLinkText "transfer efficiencies".
- Ecological_efficiency hasPhotoCollection Ecological_efficiency.
- Ecological_efficiency wikiPageUsesTemplate Template:Modelling_ecosystems.
- Ecological_efficiency wikiPageUsesTemplate Template:Reflist.
- Ecological_efficiency wikiPageUsesTemplate Template:Who.
- Ecological_efficiency subject Category:Trophic_ecology.
- Ecological_efficiency type Subfield.
- Ecological_efficiency comment "Ecological efficiency describes the efficiency with which energy is transferred from one trophic level to the next. It is determined by a combination of efficiencies relating to organismic resource acquisition and assimilation in an ecosystem.Primary production occurs in autotrophic organisms of an ecosystem. Photoautotrophs such as vascular plants and algae convert energy from the sun into energy stored as carbon compounds. Photosynthesis is carried out in the chlorophyll of green plants.".
- Ecological_efficiency label "Ecological efficiency".
- Ecological_efficiency sameAs Ökoloogiline_efektiivsus.
- Ecological_efficiency sameAs m.05zzzt9.
- Ecological_efficiency sameAs Q5333232.
- Ecological_efficiency sameAs Q5333232.
- Ecological_efficiency wasDerivedFrom Ecological_efficiency?oldid=626625345.
- Ecological_efficiency isPrimaryTopicOf Ecological_efficiency.