Environmental pollution and its eco-toxicological impacts have become a large interesting concern worldwide as result of fast urbanization, population expansion, sewage discharge, heavy industrial development. Nine metals (Pb, Cd, Fe, Mn, Zn, Ni, Cu, Cr, Co) were evaluated in 20 sediment samples from the estuaries four major drains along Mediterranean shoreline (Nile Delta coast) to determine p...

The benefits of composite rather than local seed provenances for ecological restoration have recently been argued, largely on the basis of maximizing evolutionary potential. However, these arguments have downplayed the potentially negative consequences of outbreeding depression once mixed provenances interbreed. In this study, we compared intraspecific F1 hybrid performance and molecular marker...

PREMISE OF STUDY The presence of genetic variation for traits that contribute to ecological range expansion can provide the potential for introduced taxa to evolve greater invasiveness. Genotypes that contribute to the spread of introduced range populations must have the ability to maintain fitness under changing environmental stress and competitive intensity. Previously, we identified a subset...

Mile-a-minute weed, Persicaria perfoliata (L.) H. Gross, is an invasive annual vine of Asian origin that has developed extensive monocultures, especially in disturbed open areas in the Mid-Atlantic region of the United States. A host-specific Asian weevil, Rhinoncomimus latipes Korotyaev, was approved for release in North America in 2004, and weevils have been reared at the New Jersey Departmen...

Jean-Marie Poumirol,1 Alessandro Cresti,2,* Stephan Roche,3,4 Walter Escoffier,1 Michel Goiran,1 Xinran Wang,5 Xiaolin Li,5 Hongjie Dai,5 and Bertrand Raquet1 1Laboratoire National des Champs Magnétiques Intenses, INSA UPS CNRS, UPR 3228, Université de Toulouse, 143 avenue de Rangueil, 31400 Toulouse, France 2LETI, MINATEC, CEA, F38054 Grenoble, France 3INAC, SP2M, Lsim, CEA, 17 avenue des Mart...

Scarcity of water suitable for human use has influenced the history of mankind profoundly (4) and is now of major concern in the United States. It is of acute local concern in Phoenix, Ariz. and desert environs, where a rapidly increasing human population depends on one remote watershed (Salt River) for its primary water supply (2). Here, problems of watershed management are not of mere scholar...