ORBi Open Repository and Bibliography
In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision).
This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.
Life sciences => Environmental sciences & ecology
Mostrando recursos 1 - 20 de 4,052
Effects of two PBDE congeners on the moulting enzymes of the freshwater amphipod Gammarus pulex. - Gismondi, Eric; Thomé, Jean-Pierre
Polybrominated diphenyl ethers (PBDEs) constitute a class of chemical compounds included to the composition of usual products such as plastics, textiles or electrical equipment, due to their flame retardants properties. Since 2004, PBDEs were banned in Europe and listed as Priority Substances within the European Union Water Frame Work Directive. Unfortunately, the release of PBDEs always occurs in ecosystems due to their presence in products currently in use and new products manufactured using recycled PBDE-containing material. However, only few studies have investigated their impacts on freshwater invertebrates. This work aimed to study the effects of BDE-47 and BDE-99 congeners on...
Niche conservatism and conservation biology of Lepilemur in northwest Madagascar - Wilmet, Leslie; Vermeulen, Cédric; Schwitzer, Christoph; Beudels Jamar, Roseline C.
The main goals of our study is to verify the existence and extent of niche conservatism in three closely related species within the genus Lepilemur, and to draw conclusions on the applicability of conservation protocols to a broader array of Lepilemur species. The genus is an exemplary of the mammalian fauna of Madagascar which high biological diversity is under increasingly severe threat from anthropogenic degradation of its forest habitats. This study focuses particularly on three poorly-known Lepilemur taxa: L. sahamalazensis, L. dorsalis and L. mittermeieri, uplisted into one of the threatened categories of the IUCN Red List.The genus is particularly...
Informations sur la Continuité Ecologique - ICE -Evaluer le franchissement des obstacles par les poissons. Principes et méthodes - Baudoin, Jean-Marc; Burgun, Vincent; Chanseau, Matthieu; Larinier, Michel; Ovidio, Michaël; Sremski, William; Steinbach, Pierre; Voegtle, Bruno
La fragmentation des milieux naturels est l’une des principales causes d’érosion de la biodiversité. L’impact des obstacles à l’écoulement se manifeste par une dégradation des milieux aquatiques et consécutivement des biocénoses et des processus écologiques qu’ils abritent.
Face aux exigences réglementaires (directive cadre sur l’eau, loi sur l’eau et les milieux aquatiques, grenelle de l’environnement, règlement européen de sauvegarde de l’anguille…) et à l'ensemble des enjeux environnementaux de la restauration de la continuité écologique des milieux aquatiques, l’Onema a souhaité développer un “outil ” permettant de diagnostiquer et quantifier les éventuels impacts des ouvrages hydrauliques sur la libre circulation de l'ichtyofaune....
Feeding ecology of harpacticoid copepod species: Insights from stable isotopes analysis and fatty acid profiling - Mascart, Thibaud; De Troch, Marleen; Remy, François; Lepoint, Gilles
Understanding how biodiversity influence ecosystem functioning is a major research question in current ecology research. Trophic diversity within communities strongly affects ecosystem functioning through trophic interactions between species. Various studies tackled ecosystem functioning via interactions between trophic guilds such as bottom-up and top-down control. However, few studies focussed on interspecific variability in the feeding ecology of organisms with overlapping trophic niche.
Here, we in a North-Western Corsican Posidonia oceanica seagrass meadow and its variability over one year. The extensive P. oceanica meadows are occasionally interrupted by bare sand patches which serve as deposition and accumulation area for detritus, mainly...