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From Wikipedia, the free encyclopedia

Ecotron Île-de-France main entrance at Saint-Pierre-lès-Nemours
Ecotron Île-de-France main entrance at Saint-Pierre-lès-Nemours

An Ecotron[1] is an experimental and instrumented device in ecology which makes possible in the same time to condition the environment of natural, simplified or completely artificial ecosystems and to measure the processes generated by living beings present in these ecosystems, in particular the flow of matter and energy. Its principle is to confine ecosystems in totally or partially waterproof enclosures (i.e. waterproof in material but not in energy) capable of generating a range of physical and chemical conditions applied to terrestrial or aquatic ecosystems, continental or marine. Environmental control and real-time measurements are precise enough to test hypotheses or operating models. For this purpose, the enclosures are fitted with significant equipment allowing continuous measurement of fluxes, states or biological characteristics. Other specific measurements, in situ and ex situ, on samples taken complete these online measurements. A sufficient number of independent confinement chambers is necessary to study several interacting factors in a framework of statistical inference.[2]

Depending on the case, we speak of a macrocosm when the space is large enough to study several m3 of reconstituted ecosystem over a period of time, generally measured in years (3-5 years or more for example), of microcosm for volumes measuring in cubic decimeters (study of fungal, bacterial, soil ecosystems, etc.) and mesocosm for intermediate situations.

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Transcription

References

  1. ^ Lawton, J. H., Naeem, S., Woodfin, R. M., Brown, V. K., Gange, A., Godfray, H. J. C., Heads, P. A., Lawler, S., Magda, D., Thomas, C. D., Thompson, L. J. & Young, S. (1993) The Ecotron - a Controlled Environmental Facility for the Investigation of Population and Ecosystem Processes. Phil. Trans. R. Soc. B, 341, 181-194.
  2. ^ Un Écotron pour mesurer les impacts des changements environnementaux sur les écosystèmes

Bibliography

  • Lawton, J. H., Naeem, S., Woodfin, R. M., Brown, V. K., Gange, A., Godfray, H. J. C., Heads, P. A., Lawler, S., Magda, D., Thomas, C. D., Thompson, L. J. & Young, S. (1993) "The Ecotron - a Controlled Environmental Facility for the Investigation of Population and Ecosystem Processes." Phil. Trans. R. Soc. B, 341, 181-194.
  • Lawton, J. H. (1996) "The Ecotron facility at Silwood Park: The value of big bottle" experiments. Ecology, 77, 665-669.
  • Loreau, M. (1998) Biodiversité et fonctionnement des écosystèmes n°81, pp. 3-7. French National Centre for Scientific Research, Paris.

External links

This page was last edited on 25 November 2020, at 17:42
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