Figure 2
From: Patterns of contemporary hybridization inferred from paternity analysis in a four-oak-species forest
Spatial distribution of four maternal trees belonging to different oak species (A - Q. petraea , B - Q. frainetto , C - Q. robur and D - Q. pubescens , respectively) and their pollen donors within the study plot. Each pollen donor is linked to the corresponding maternal tree through a line. The thickness of each line is proportional to the number of successful matings. The proportion of pollen coming from outside the study plot is also given. Each species is shown by a different shape and colour. Phenotypically intermediate individuals are indicated by the symbols of the species they mostly resemble.