Sommaire:

Amphibians are animals that need two different kinds of habitats - water and forests - to achieve their life cycles. When water and forest are dissociated, their populations tend to decline. I present a simple population model based on diffusion equations aimed to get insight into this phenomenon. I show that there exists a critical split distance between the water and forest above which the population goes locally extinct.

Pour plus d'informations, merci de contacter Parmeggiani A.