Kin competition as driver of range expansions

摘要: With ongoing global change, life is continuously forced to move novel areas, imposing rapid changes in biotic communities and ecosystem functioning. As dispersal central range dynamics, factors promoting fast distant are key understanding predicting expansions. the expands, genetic variation strongly depleted homogenisation increases. Such conditions should reduce evolutionary potential, but also impose severe kin competition. Although competition drives dispersal, we lack insights into its contribution expansions, relative other causal processes. To separate dynamics from competition, combined simulation modelling experimental expansion using spider mite Tetranychus urticae. Both evolution demonstrated that plastic responses structure increased speed by about 20%, while effects of spatial sorting were marginal. This insight resolves an important paradox between loss earlier observed facilitating Kin may thus provide a social rescue mechanism populations keep up with climate change.