1. Much of systems ecology can be considered a subset of ecosystem ecology. 2. They are used to compose energy flow diagrams in the field of systems ecology . 3. The relationship between systems ecology and ecosystem ecology is complex. 4. Systems ecology can be seen as an application of general systems theory to ecology.5. In 1953, they published the first English-language textbook on systems ecology , " Fundamentals of Ecology ". 6. Ecosystem ecology also utilizes methods that have little to do with the holistic approach of systems ecology . 7. Central to the systems ecology approach is the idea that an ecosystem is a complex system exhibiting emergent properties. 8. The theoretical and conceptual basis for the emergy methodology is grounded in thermodynamics, general system theory and systems ecology . 9. Studies in ecological anthropology borrow heavily from the natural sciences, in particular, the concept of the ecosystem from systems ecology . 10. This step took him from his early interest in ornithology and brought him into the emerging field of systems ecology .
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