Gignoux, JacquesDavies, IanFlint, ShayneZucker, Jean-Daniel2015-12-101435-0629http://hdl.handle.net/1885/62600Since its inception, the ecosystem concept has been widely used in ecology and is increasingly finding application within other disciplines. In more recent times within ecology, however, it has been suggested the term is now obsolete. We argue that threeThe Ecosystem in Practice: Interest and Problems of an Old Definition for Constructing Ecological Models201110.1007/s10021-011-9466-22015-12-10