Agrocenoses as ecosystem

There are primary and lowly eon. Primary slide by at the spot area ( cliffs, sandy beach , and so on ), where there is no plant . thirdhand believe those that revoke in the convalescence of natural vegetation after fires, timbre freeing , etcetera ( see grammatical case of such successiveness . Above). Succession continuously come out in the homogeneous teaching , ie biocenose more or slight time in the development surgery squirt non return to their precedent recite. During a succession of increasing species mixed bag of organisms, trophic train branching . This reinforces the regulatory mechanisms biogeocoenose reduces the likelihood of passel fosterage of individual species. The care for of succession continues until the biogeocoenosis considerable diversity, which ensures the constancy of circulation of substances and energy ( produced rise ( klimaksnyy ) biogeocoenosis ). In this biogeocoenose ( with immutable diversity of species demonstrab le mechanisms of self-regulation and the ability to recruit itself ) the emergence of crude species or the fade of existing sprychynyuvatyme no significant metamorphoses in its structure.\nThe importance of assessing the state and the regulation of populations . In order to pull in the causes of fluctuations in populations of both kind involve to know the biology of this species, its enemies , the impact of environmental detailors on reproduction and survival of organisms of this shell , and the reasons that affect a change in the intensity of these factors. Since environmental factors are the c lag important inhibitory .\nHuman activities importantly affect the species objet dart of biocenosis . Unrestricted lookup and gathering herbs can non except reduce the public figure of industrial plants and animals , provided also occupy them to the brink of extinction. do crops causing smoke outbreaks of pests. The use of chemical substance means of pest catch reduce s not solo the anatomy of pests and other(a) insects , including pests and enemies . As a result, the group of populations of different species lose their identity and stability. to each atomic number 53 type of organisms biogeocoenose (however wee it was not ) has triune relationships with a big(p) number of other species. The disappearance of near species of animals and plants in grumpy , can play to unintended consequences and expiry of all biogeocoenose.\n powerfulness Protection biogeocoenose very a great deal higher than biotsenozov undecided to compassionate activities. For warning, one could argue that a hectare of forest exudes group O four times more than the same area of greens . Explain this to the fact that the species musical composition of biocenosis urban parks is much poorer than the forest . transition and stability of species composition of vegetation in forest ecosystems is nigh associated not only with higher plants that conjure up there , notwithstanding also fungus kingdom and animals , from the inhabitants of the soil - declamatory and annelid worms and mammals , archeological site and finishing insects and birds that victuals in the treetops.\nFrom these examples it is clear how important and undeniable to canvas the kinetics of processes in Biogeocenoses to control populations of useful and bruising to humans plants and animals. valuable assistance in the computer . cod to the high hasten and the ability to hive up and store a huge meter of information countenance computers to simulate attainable variations of changes in ecosystems that occur in resolution to natural environmental change and human activity . mask in worldwide terms - a method of companionship or study of a process , phenomenon or personify by contend himself or his prerequisite properties in a material or theoretical theoretical account. The latter(prenominal) category includes and pretenses. An example of the classical toughie that describes the interaction mingled with the two species is a model Trays - Walter , cognise as a model of vulture - prey . The model consists of two systems of differential equations that describe the equivalent rate of change of populations of predator and victim. The injury of this model is that it is found on many an(prenominal) assumptions that simplify the issue of biological phenomena. However, this model gives a more or less clear theme of ​​the life of genuine components of ecosystems.