Stand development stages and recruitment patterns influence fine-scale spatial genetic structure in two Patagonian Nothofagus species

Abstract Key message Nothofagus alpina (Poepp. et Endl.) Oerst. and obliqua (Mirb.) Oerst forests have strong fine-scale spatial genetic structures. The intensity of structure patterns differed according to species, stand development stages, life arrangement regeneration groups. This data becomes useful for forest management as it provides an understanding how populations evolve well the consequences disturbances enables establishment sampling strategies. Context in natural is management. Although N. are important species Patagonian forest, little known about their populations. Aims main objectives were investigate differences among mature tree both considering two stands at different stages. Genetic was also evaluated stages distribution groups within old-growth stand. Methods examined by microsatellite DNA analysis (around 1300 individuals). Gene dispersal distance additionally estimated. Results In short found. pattern stronger early successional populations, earlier scattered regeneration. Conclusion Stand recruitment influence species. However, differs between