Ecology is the study of organisms in their environment. The name comes from two Greek words: "acoe" - house, the seat and logos - science.
All beings on the Earth do not live by themselves and in interaction with each other and with the environment that surrounds them. These interaction studies and ecology. While in nature has a balance (the plants have enough nutrients in the soil, animal and plant mass, man - food and resources, ecology remains of armchair science, about which people know little. But once the balance is broken - there is an environmental crisis, and this science is becoming one of the most important.
Four basic principles of ecology formulated in the 60-ies of the American biologist B. Commoner. They say:
1. Everything is connected to everything.
2. Everything has to go somewhere.
3. Nothing comes for free.
4. Nature knows best.
Young ecology "came out" of the oldest and largest science - biology. In turn, the new science had time to form many padauk.
Let's list some of them: plant ecology, animal ecology, archaeology, ecology steppes, deserts, tundra, mountains, forests...), the ecology of the ocean, space, ecology, ecology of the atmosphere, human ecology, the ecology of cities, global ecology.
There is even sustainable figurative expressions. Such as "cultural ecology", "ecology of the soul". They are used when we want to emphasize the devastating impact of the social environment on the inner world of man.
In our time, the environment has become one of the most important science, but its development is still ahead.