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 (mĕz′ə-kŏz′əm, mĕs′-)
A biological system that contains the physical features and organisms of an ecosystem but is restricted in size or scope for use in conducting scientific experiments.

[meso- + -cosm (as in microcosm macrocosm).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
In Estonia, the knowledge of the effect of ocean acidification on marine organisms is based on short-term mesocosm experiments under natural light and temperature (Pajusalu et al., 2013, 2015, 2016a, 2016b).
To assess the importance of pupation site limitation on cannibalism, which is rarely if ever, distinguished from other forms of density-dependence mesocosm experiments could be conducted, in which the number of pupation sites and the presence of pupa are manipulated.
Observations on the spawning behavior, egg masses and paralarval development of the ommastrephid squid Todarodes pacificus in a laboratory mesocosm. J.
To take on this challenge, our research team used the large-scale mesocosm experiment at NIWA to carry out a series of plankton-feeding experiments that took place in warmer, more acidic conditions.
An investigation of the limits of phosphorus removal in wetlands: A mesocosm study of a shallow periphyton-dominated treatment system.
Hu, "Treatments of oil-refinery and steelmill wastewaters by mesocosm constructed wetland systems," Water Science and Technology, vol.
To each mesocosm we added two male (mean total length = 43.4 cm [+ or -] 2.7 SD) and two female (mean total length = 42.0 cm [+ or -] 2.9 SD) C.
To that aim, we assembled data collected on four different natural eelgrass populations and a mesocosm, resulting in a total of 6751 complete leaves.
A mesocosm study in a Turkish shallow lake showed that macrophytes resist increased nutrient loading, perhaps as a result of evaporation-triggered water level reduction, overriding the deleterious effect of periphyton- and phytoplankton-induced turbidity (Ozkan et al., 2010).