GIScience methods and geodata may contribute to the elaboration of efficient decision‐making approaches to favor the conservation of plant/animal genetic diversity and to favor the advancement of our understanding of mechanisms controlling the evolution of species (adaptation to local environment in particular). Since 2001, a group of landscape genetics at LASIG/EPFL immersed in the evolutionary biology community. A sustainable collaboration with biologists, geneticists, vets, geneticitsts, etc. enabled a real appropriation of the domain (molecular ecology). These transdisciplinary efforts - versus punctual unsignificant interdisciplinary periods of service exchange - permitted to extract the best from GIScience - spatial analysis and geocomputation in particular - to serve evolutionary biology.