distance

A theoretical relationship between isolation by distance or spatial genetic structure (SGS) and seed and pollen dispersal is tested using extensive spatial-temporal simulations. Although 2 2 for animals Wright’s neighbourhood size Ne =4πσt has been ascertained also, where σt is the axial variance of distances between parents and offspring, and it was recently confirmed that 2 2 Ne =4 πσ ( f + σm)/2 when dispersal of females and males differ, the situation for plants had not been established. This article shows that for a very wide range of conditions, neigh