title: [Commensalism: a fundamental concept in ecology?].
authors.affiliation: Laboratoire S2HEP, Université de Lyon, Université Lyon 1, bd du 11novembre 1918/38 bd Niels Bohr, 69622, Villeurbanne Cedex, France, bbpcharles@hotmail.com.
authors.forename: Brice
authors.initials: B
authors.lastname: Poreau