Results/Conclusions Three major findings emerged. 1) Genotypes varied in network structure in all years sampled. 2) Network structure was consistent across all years. 3) There was a significant, positive correlation between community stability and network structure. Studies of species interaction networks, such as food-webs and mutualisms, have provided the foundations of a network perspective in ecology. Our results suggest that the genetics of a foundation tree species can affect the interaction network structure of associated species and that communities with higher network centrality (i.e., a more even distribution of links among species) are less stabile. Furthermore, our findings indicate the importance of network analytical methods in understanding community dynamics.