ROQUES , Lionel

International audience

National audience

An important prediction of spatio-temporal population dynamics models is that habitat quality, as determined by the carrying capacity of the environment, should have no in uence on the velocity of population expansion. This is for instance the case with the Fisher-KPP model, where the asymptotic spreading speed of solutions is entirely...

International audience

This preprint has been reviewed and recommended by Peer Community In Ecology (https://dx.doi.org/10.24072/pci.ecology.100004). Finding general patterns in the expansion of natural populations is a major challenge in ecology and invasion biology. Classical spatio-temporal models predict that the carrying capacity (K) of the environment should...

Identifying the factors modulating range expansion is essential to accurately predict changes in the spatial distribution of populations. By preventing population growth after dispersal, Allee effects can lead to front stops in discrete space, called 'pinning' if permanent. However, other mechanisms, such as positive density-dependent...