Comptes Rendus Biologies
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Distribution of endemic and alien plants along Mediterranean rivers: a useful tool to identify areas in need of protection?
Our hypothesis was that endemic and alien species, considered important in defining conservation priorities along rivers, have different patterns of distribution and their coexistence indicates human impacts on fluvial systems, which can cause natural habitat loss. Generalized Additive Models were u...
Sexual size dimorphism in the ontogeny of the solitary predatory wasp Symmorphus allobrogus (Hymenoptera: Vespidae).
We used empirical data on the development of the predatory wasp Symmorphus allobrogus (Hymenoptera, Vespidae) to test the hypotheses that sexual differences of growth resulting in the female-biased SSD embrace the difference in (1) the egg size and the starting size of larva, (2) the larval developm...
Himantura tutul sp. nov. (Myliobatoidei: Dasyatidae), a new ocellated whipray from the tropical Indo-West Pacific, described from its cytoch...
We show that the two cryptic species differ by the spotting patterns on the dorsal surface of adults: Cluster-4 individuals tend to have larger-ocellated spots, which also more often have a continuous contour than Cluster-1 individuals. We show that H. leoparda's holotype has the typical larger-ocel...
An outbreak in France in the XVIIIth century: rinderpest.
Long regarded as the major disease of cattle, rinderpest is now eradicated. It was inflicting from 60 to 90% mortality on livestock. Installed in Asia, it arrived in France in waves, but never became endemic there. Four outbreaks of rinderpest hit the country during the eighteenth ce...
[The fight against epizootics in the 21st Century].
The fight against epizootics is today better organized. The tools, methods and strategies used work well and are constantly being improved, which is necessary since disease epidemiology is evolving extremely fast, dominated by a growing complexity associated to global changes and the...
[Impact of Ligula intestinalis (L.1758) (Cestode), on the growth of Barbus setivimensis (Cyprinidae) in a lake system in Algeria].
We studied the effects of diet, the hosting period, the habitat on the prevalence, abundance and intensity of the parasitic larvae plerocercoid L. intestinalis and the parasiting effect on the Cyprinids fishs of the genus Barbus in the Keddara dam (Boumerdes, Algeria) during one year. Although L. ...
Penetration of resveratrol into bovine aortic endothelial cells (BAEC): a possible passive diffusion.
Several studies have demonstrated that, in a context of oxidative stress, resveratrol, a polyphenol found in wine, could act as a protective agent on endothelial cells by various mechanisms but without showing that it could penetrate inside the cell. The aim of this study was to detect for the first...
Arbuscular mycorrhizas enhance nutrient uptake in different wheat genotypes at high salinity levels under field and greenhouse conditions.
Since most experiments regarding the symbiosis between arbuscular mycorrhizal (AM) fungi and their host plants under salinity stress have been performed only under greenhouse conditions, this research work was also conducted under field conditions. The effects of three AM species including Glomus mo...
Functional diversity of terrestrial microbial decomposers and their substrates.
The diversity of the ecosystem services concept and its implications for their assessment and management.