Deutsch: Ökosystem / Español: Ecosistema / Português: Ecossistema / Français: Écosystème / Italiano: Ecosistema /

An ecosystem is an interconnected and symbiotic grouping of animals, plants, fungi, and microorganisms.
Other /More definition:
An Ecosystem is the interacting system of a biological Community (plants, animals) and its non-living environment.
Other /More definition:
An ecosystem is the Biotic Community and its abiotic environment (Krebs 1978) within a specified location in space and time (added by RAF 1992). "The interacting system of a biological community and its non-living environmental surroundings" (EPA 1992, 10).
Other /More definition:
An Ecosystem is a specialized community, including all the component organisms, that forms an interacting system; for example, a marsh, a shoreline, a forest
Other /More definition:
An Ecosystem is the complex system of plant, animal, fungal, and microorganism communities and their associated non-living environment interacting as an ecological unit. Ecosystems have no fixed boundaries; instead their parameters are set to the scientific, management, or policy question being examined. Depending upon the purpose of analysis, a single lake, a watershed, or an entire region could be considered an Ecosystem.
Other /More definition:
Ecosystem is the Community of different species interacting with one another and with the chemical and physical factors making up its Nonliving environment.
Other /More definition:
An Ecosystem is a dynamic complex of plant, animal and microorganism communities and their non-living environment interacting as a functional unit.