Dispersal is often viewed as a process on which the landscape has little effect. This is
particularly apparent in populations' genetic and ecological studies, where isolation by
distance is generally tested using a Euclidean distance between populations. However,
landscapes can be richly textured mosaics of patches, associated with different qualities (eg
different costs crossing patches) and different structures (shape, size and arrangement). An
important challenge, therefore, is to determine if accounting for this additional complexity …