Face à la dégradation anthropique des habitats littoraux du Parc national Calanques, le projet européen LIFE Habitats Calanques (LIFE16 NAT/FR/000593) a pour objectif d’entreprendre actions de protection et restauration écologique grande échelle. Parmi ces habitats, phrygane (code Natura 2000 : 5410) représente un exemple typique d’une situation littorale contrainte par une forte anthropisation...

Stephan Blossfeld1,†*, Christina Maria Schreiber2,†, Gregor Liebsch3, Arnd Jürgen Kuhn1 and Philippe Hinsinger2 Forschungszentrum Jülich GmbH, Institute of Bioand Geosciences, IBG-2: Plant sciences, Jülich, Germany, INRA, UMR Eco&Sols, Montpellier, France and PreSens, Precision Sensing GmbH, Regensburg, Germany These authors contributed equally to this paper. * For correspondence. E-mail s.blos...

Rowe's stress–dilatancy relation for frictional (cohesion-less) materials has been a cornerstone of soil mechanics. The original derivation of this relationship was based on incorrect energy minimisation considerations, but the relationship was proven later by De Josselin de Jong using friction laws, and has been confirmed by a large body of experimental results. In contrast, the validity of Ro...

Luz E. de-Bashan (1,2), Juan-Pablo Hernandez (1), Hani Antoun (2) and Yoav Bashan (1,2). (1) Environmental Microbiology group, The Center for Biological Research of the Northwest (CIB), A.P. 128, La Paz, B.C.S. 23000, Mexico, (2) Départment des Sols et de Génie Agroalimentaire, Université Laval, Québec Qc Canada, G1K 7P4. [email protected]; [email protected]; [email protected]; bashan@cib...

A simple procedure for making a series of membranes of graded pore sizes is presented with data for permeability of the membrane series to water and to colloidal sols of known particle sizes. A convenient ultrafiltration apparatus for operation under aseptic conditions is described.