Jean-Claude Lefeuvre

TL;DR: Starting with the nature of the phenomenon itself (i.e., its essence), the notion of biological invasion is elucidated and a general definition compatible with most of the ideas already expressed is suggested.

TL;DR: The results show that intensification of agriculture does not always lead to a decrease in species richness, but to several functional responses according to taxonomic groups, either no modification, or stability by replacement of species, or loss of species.

TL;DR: Cyanobacterial blooms were sampled at five locations in Lake Grand-Lieu on seven different occasions during May–October 1994 and microcystin-LR was the main toxin found in strains of M. aeruginosa, but was not present in strain of A. circinalis.

TL;DR: The authors emphasize the characteristics of human-mediated extra-range dispersal pathways in order to argue that biological invasions are, above all, a biogeographical phenomenon of unprecedented magnitude and, thus, that it would be better to separate Biological invasions from ‘considerations of ecological dominance’.

TL;DR: In this article, a 1.8-km transect of the salt marsh was used to study primary production and the detritus pathway (i.e., primary production, litter fall, export to coastal waters, and decomposition) over a 1-year period in three salt marsh levels (low, middle and high marshes).