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A temporary community which occurs during a successional sequence on a given site.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the totality of plant communities (phytocoenoses) that are present in response to changes of the principal environmental factor or factors. The main ecological factors may include moistening or salinization of the soil, the content of humus or mineral nutrients in the soil, and differing grassland and bottomland regimes. The sere is most often associated with changes in the moisture content or salinity of the soil or with simultaneous changes in both these factors.

The sere that best reflects changes in the soil moisture content is best observed on slopes in the floodplains of rivers. The soil at the bottom of the slopes usually has a higher moisture content than the soil at the top, with the result that the phytocoenoses of the lower portions contain plants that are more hygrophilous. Moreover, changes in the moisture content are usually accompanied by changes in a number of other factors (temperature, humus content in the soil), although the moisture content remains the principal ecological factor. Seres that are associated with simultaneous changes in both the salinity and moisture content of the soil may be observed along the shores of salt lakes and when the bottoms of such lakes become overgrown with vegetation as they dry out. Seres are also clearly manifested on the gently sloping shores of freshwater lakes that are in the process of bog formation.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Sere's third attorney withdrew and she proceeded pro se.
Okuze me 1 Kozonjanga 2016 ondjambi onditinditi ya sere okuyerwa no 5% pamwe noperesende ndji ta pomayerurukiro wovirandwa noviungurisiwa momieze 12 mbya kapita.
It was also a successful year for SERE Motors, as it was named Northern Ireland's Regional Garage of the Year by Motor Codes for the sixth year running.
The protesters insisted that Serem Sere and the retired army General Kouame Lougue had come to the station to make some declarations.
In his book and in subsequent interviews, O'Grady often talks about how the training he received in SERE was invaluable, and he directly credited this training with saving his life.
Military efforts begin with education and training such as SERE Level C training, the use of isolated Soldier guidance (ISG) and an evasion plan of action (EPA), as well as the fielding of PR equipment such as the Combat Survivor Evader Locator (CSEL) radio and evasion charts (EVCs).
Yet like a subterranean current, there are connections: Judas, too, as he lay dying could have predicted "Volvere y sere millones." I'll be back again and again in versions and re-versions.
We then further build a restricted simple subset of SERE layer for temporal property specification and verification over this constrained Boolean layer.
Emission savings are estimated at about 5 million tons of CO2 equivalent (over a 20-year life span) for the Sere wind power project and 9 million tons for the Upington solar power plant.
SERE is actually an advanced code-of-conduct course.
Stateowned energy utility Eskom is expected to start a selection process in the next two months that will eventually allocate some 1GW of renewable energy projects intended to be built by 2013 and is expending $260m for a 100MW wind farm in Sere and a 100MW concentrated solar power project in Uppington.