What Is An Ecosystem?
- An ecosystem includes living organisms and the climate, soil, water, and air of the place where they live, and all the interactions of the living organisms with each other and their environment.
- Ecosystems can be studied in terms of their structures, composition, and processes.
- One ecosystem is the Pacific Northwest old-growth forest.
The structures, composition, and processes of the old-growth forest
are described under other headings on this web page.
Photo by Tom Iraci
