Con el objetivo de estudiar el efecto de la disponibilidad de recursos sobre la amplitud del nicho trófico en peces de la Amazonia boliviana, comparamos los nichos isotópicos (como sustituto del nicho trófico) de tres especies de peces (Acestrorhynchus altus, Hoplias malabaricus y Pygocentrus nattereri) en un gradiente de disponibilidad de presas. ...
Our aim was to understand the environmental conditions of the emergence and radiation of early angiosperms. Such a question has long remained controversial because various approaches applied in the past have drawn conflicting images of early angiosperm ecology. We provided a new perspective on the question by using support vector machines to model ...
La petite massette (Typha minima Funck) est une espèce pionnière, héliophile colonisant les berges des contreforts montagnards des climats tempérés. Cette espèce a régressé de plus de 80% sur l’arc Alpin et les populations les plus importantes sont actuellement situées sur les berges des grands cours d’eau des Alpes Françaises : Arve, Durance et Is...
Background: During the last century, WHO led public health interventions that resulted in spectacular achievements such as the worldwide eradication of smallpox and the elimination of malaria from the Western world. However, besides major successes achieved worldwide in infectious diseases control, most elimination/control programs remain frustrati...
Amborella trichopoda Baill. (Amborellaceae, Amborellales), the sole living member of the sister group to all other extant angiosperms, is endemic to New Caledonia. We addressed the intraspecific phylogeography of Amborella by investigating whether its present population genetic structure could be related to its current and past habitats. We found m...
Amborella trichopoda Baill. (Amborellaceae, Amborellales), the sole living member of the sister group to all other extant angiosperms, is endemic to New Caledonia. We addressed the intraspecific phylogeography of Amborella by investigating whether its present population genetic structure could be related to its current and past habitats. We found m...
