BERTIN , Aline

Mealybugs (Hemiptera: Pseudococcidae) are pests constraining the international trade of Brazilian table grapes. They damage grapes by transmitting viruses and toxins, causing defoliation, chlorosis, and vigor losses and favoring the development of sooty mold. Difficulties in mealybug identification remain an obstacle to the adequate management...

A bstract As human influence reshapes communities worldwide, many species expand or shift their ranges as a result, with extensive consequences across levels of biological organization. Range expansions can be ranked on a continuum going from pulled dynamics, in which low-density edge populations provide the "fuel" for the advance, to pushed...

Range expansions are key processes shaping the distribution of species; their ecological and evolutionary dynamics have become especially relevant today, as human influence reshapes ecosystems worldwide. Many attempts to explain and predict range expansions assume, explicitly or implicitly, so-called 'pulled' expansion dynamics, in which the...

Range expansions are key processes shaping the distribution of species; their ecological and evolutionary dynamics have become especially relevant today, as human influence reshapes ecosystems worldwide. Many attempts to explain and predict these phenomena assume, explicitly or implicitly, so-called "pulled" expansion dynamics, in which the...

Comment améliorer les capacités digestives du poulet par la sélection ? Pourquoi veut-on sélectionner des poulets sur leur capacité à digérer les aliments difficiles ? Les poulets sont nourris essentiellement à base de céréales, principalement le maïs et le blé. Si le maïs est facile à digérer, le blé, pourtant abondant en Europe, est plus...