We combine simulations with spatial statistics to estimate the parameters of a metapopulation model for the epiphytic lichen Lobaria pulmonaria specializing on aspen (Populus tremula) and goat willow ...

This is a preview. Log in through your library . Abstract Biological invasions are widespread phenomena that threaten the integrity and functioning of natural ecosystems. In this paper we develop a ...

For more then half a century, C. H. Waddington's metaphor of a marble rolling down a landscape that segregates into different grooves has served as a sophisticated illustration of cell specification ...