Free-living barnacles are sessile as adults, mostly hermaphroditic, and generally thought to
mate either by pseudo-copulation, using their famously long penises, or by self-fertilization …

Polymorphism in traits affecting dispersal occurs in a diverse variety of taxa. Typically, the
maintenance of a dispersal polymorphism is attributed to environmental heterogeneity …

Understanding the patterns of genetic variation within and among populations is a central
problem in population and evolutionary genetics. We examine this question in the acorn …

Balancing selection has been invoked to explain the apparent maintenance of
polymorphisms at the mannose-6-phosphate isomerase (Mpi) and glucose-6-phosphate …

Currently environmental pollution is one of the most important factors affecting natural
populations and acting as a strong selective pressure. Therefore, identifying genes and their …

Many montane organisms live in fragmented populations that are especially vulnerable to
climate change. The ability of populations to persist in the face of immanent environmental …

Organisms living in highly heterogeneous environments are useful for examining the effects
of associations between phenotypes and ecologically relevant genes in the field. Here, we …

Uncovering the mechanisms maintaining polymorphism within and between species is of
high interest in evolutionary biology. Hybridization has been shown to have a great impact …

Résumé Cette thèse de doctorat est un projet franco-polonais en co-tutelle entre le
Département du Fonctionnement des Ecosystèmes Marins (l'Université de Gdansk …

Résumé On observe le déclin progressif de l'anguille d'Amérique sur l'ensemble de son aire
de répartition depuis plus de quatre décennies, mais celui-ci semble plus soutenu dans la …