The ecology is defined mainly as science which is engaged in studying relationship of living organisms as separately, and as a part of their communities with the environment. It is closely connected also with other biological disciplines, such as botany and zoology. It is proved that directly the way of life of each single animal is closely connected and itself influences the environment surrounding it, the environment of his dwelling. For this reason each system is separately inexpedient to be considered since a part of an interconnection by all means will lead to other system, will exist only in these mutual relations of systems and it is impossible in their absence.
Instruction
1. It is necessary to remember that in the biosphere processes very difficult, also demanding complex consideration take place. All organisms living on the earth have the closest communications with each other, with other populations, as well as with the environment at which there are not only living organisms, but also inanimate nature. Bright and most clear examples of these elements is light, air, water, the soil and temperature.
2. Any changes in the environment shortly affect also living inhabitants, for example, different types of animals. So pollution of reservoirs in one area should be understood as the obvious reason of moving of any population of animals to other area. Also reduction of number of population can mean insufficient amount of acceptable food which animals can find in the territory of the dwelling or the food available to them in their environment, poor quality, so is not effective for their growth and development.
3. Various populations find various way out of the developed situations, difficult for survival. Someone remains in the same territory and continues to cope with difficulties here, and there are types of animals who prefer to move off in searches of other territories more favorable for their existence. But if the territory which suits population is not ready to accept such quantity of these animals, then it is necessary to expect gradual changes in the environment. Animals can eat any vegetation much quicker, than the nature is capable to restore. Thus, flora of this area will suffer. If birds and insects are in direct dependence on flora, for example, then it is necessary to expect changes and in their way of dwelling. Everything is interconnected in the nature. Changes in one place by all means will cause changes in another, and in a consequence and in other places.