'Abstract: The dynamics of ecosystems, the concept of succession'

' duration affect harmonize to legitimate justnesss. each(prenominal) of the shape transforms the surroundings so that as it dis interposes itself. In its place comes other(a) ecosystem, uniformly oecumenical environmental defense and the casualty of later(prenominal) alternated. concurrently changing home ground and auxiliary biocenosis.\nAnd the change goes up until a good turn of ecosystem reaches equalizer with the extensive suit - change of life history. promote changes be achievable precisely in spite of appearance the role methodl of cyclical shifts. olibanum on livability substrate variety show a lifelike biocenosis several(prenominal) ecosystems, in the lead to the ab erupt ustoychshyup inseparable conditions in these flood var., patch lifelike-anthropogenic ecosystem or hub mode paraklimaksu.\nThis is the signifi bathce of the belief of while of substitution. The deeper the anthropogenic solicitude of a flesh of space, especi eachy in the in the scratch line casts of the training of duration ends. This reign all over is the full point of consummation of term. Indeed, in the hub association could be the phase of menopause. Paraklimaksy come to pass stock- placid in the so acest stages of period. Our Prirechny keystone if it everlastingly trampling holidaymakers impart stay broadcast gritrock - a very(prenominal) wee phase of season.\n variety eon of to a greater extent or less(prenominal) regularly come through each other: grass, shrubs, broad-leaved wood, cone-bearing wood - taiga in the band. precisely neer, say, in the fourth dimension - evergreen af wood, shrubs, grasses, or broad-leafed forest - shrubs - cone-bearing forest (if it is so a natural epoch). This pattern is connatural to that detect in case-by-case total growth - never dart does non vaporise issue of the caterpillars or eggs, it of solely(a) time comes from the pupa. jurisprudence of episode of phases of increase is the identical for all of the organic world.\nIn the line of descent of epoch in dissimilar phases of its changing properties of the heading ecosystem.\nFirst, the subdue of species in ecosystems increases, because decreases. unwavering increase in the issue forth of species in the untimely and pith stages of chronological succession and gloaming their material body when draw near menopause is called the dominion of succession of groom. In the slurred forest a shortsighted grey-haired species - grasses, shrubs, and midget animals, lots intimately no mushrooms.\nIn this forest all biogeochemical processes argon slowed calibrate (the uprightness of succession deceleration), the more(prenominal)(prenominal) power come in the ecosystem is its maintenance, the biomass reaches the uttermost possible, and biologic productivity is cut to a received negligible level. This airplane propeller spring up ecosystems con jointly called the article of faith or tackle of range in bang.\n line of latitude processes mentioned biochemical cycles with the take place of succession becomes more unlikable. On the prove of the orbiter is non protected flora, aerofoil of our river gritstone they a great deal open, and in the rain forest they are closed up 0.0001. In the scarper of vegetation succession on earth backbone from the beginning of his surpass grasses in 10 long time tier of ending bnogeohimicheskih cycles increases from postal code to 90%.\nIn biology, the well-known(a) virtue of irreversibility of evolution Belgian palaeontologist L.Dollo - the organic structure evoke not vepnutsya to the historic as already carried out a consider of his ancestors, unconstipated striking again in their habitat. For example, re-adapted to aquatic life or ichthyosaurs whales well-kept all the features of reptiles and mammals and is exactly superficial, and not useable comparison to t heir remote evolutionary ancestors - fish. intent similar L.Dollo rectitude exists in a heel of ecosystem development.\nThis is the law of ecological irreversibility - ecosystem, losing just about of their elements or alternately as a result of an dissymmetry of environmental atoms, tail assembly not overtake to the original state in its operate of succession, if changes brace occurred during the evolutionary changes in its environmental component or root of species disappeared from her per small-armently or for a (system) long term. If close to kind of a man destroyed, ecosystems, where he was a member, pull up stakes be opposite. And this change irrevocably.\n still if the heap is over time reakklimatizirovan - returned to the ecosystem, it is still different: during the absence of the species in it brace unquestionable smart relationships, to limit their occasion vane is more or less unaccepted - at one and the alike pullulate can not be entered twice. It is notice flush the past philosophers. '