Biological assemblages are constantly undergoing change, with species being introduced, extirpated and experiencing shifts in their densities. Theory and experimentation suggest that the impacts of such change on ecosystem functioning should be predictable based on the biological traits of the species involved. However, interspecific interactions could alter how species affect functioning, with...

The Water Framework Directive (WFD) aims to attain ‘good quality’ status for all European water bodies through the achievement of good ecological status. To this purpose, WFD advocates creation cost-effective monitoring tools deliver appropriate data that help create links between chemical and indicators, as those from ecotoxicological research. Here, it was evaluated whether integration tools,...

Particle mixing and irrigation of the seabed by benthic fauna (bioturbation) have major impacts on ecosystem functions such as remineralization organic matter sediment-water exchange. As a tribute to Prof. Gaston Desrosiers Nereis Park association, eighteen laboratories carried out collaborative experiment acquire global snapshot particle reworking polychaete Hediste diversicolor at 16 sites su...

The invasion of Mont-Saint-Michel Bay salt marshes (France) by a grass species (Elymus athericus) has led to important changes in vegetation cover, which is likely to modify the habitat for many invertebrates. Some of them constitute the main food items for several fish species, such as young sea bass (Dicentrarchus labrax) and sand goby (Pomatoschistus minutus), that feed in salt marsh creeks ...