Symposium Introduction

Immediately surrounding the living organism is its biocenotic Wednesday . The representatives of each species can exist only in a living environment, where communication with other organisms that provide them with normal living conditions. In other words, the diverse living organisms found on land is not in any combination, and some form of cohabitation or community, which includes species that are adapted to co-habitation. The groups living together and mutually related organisms called biocenoses (from the Latin bios - life, cenos - general). Fitness members of the ecological community to live together is expressed in a certain similarity requirements of the most important abiotic environmental conditions and logical relations with each other.

Scale biocenotic groups of organisms are very different from communities pillows lichens on the trunks of trees or decaying stump to the population Entire landscapes: forests, steppes, deserts, etc. The term "biocenose" in modern ecological literature is most often used of the population of the territorial land that land allocated a relatively homogeneous vegetation (usually on the Limits of plant Associations), for example, biocenose spruce-Oxyria, a large upland meadows, pine-belomoshnika, large feather-grass steppe, wheat fields, etc.

This refers to the totality of living creatures, plants, animals microorganisms that are adapted to co-habitation in the territory. In the aquatic environment distinguish biocenoses, relevant environmental unit parts water, for example, large coastal gravel, sandy or silty soils, the abyssal depths, large pelagic large eddies of water masses, etc. In relation to smaller communities (population of stem or leaf trees, moss hummocks in swamps, burrows, anthills, etc.) used variety of terms: "a micro", "biocenotic groups, "Biocenotic complexes, etc.