| enemy release but no evolutionary loss of defence in a plant invasion: an inter-continental reciprocal transplant experiment. | when invading new regions exotic species may escape from some of their natural enemies. reduced top-down control ("enemy release") following this escape is often invoked to explain demographic expansion of invasive species and also may alter the selective regime for invasive species: reduced damage can allow resources previously allocated to defence to be reallocated to other functions like growth and reproduction. this reallocation may provide invaders with an "evolution of increased competitiv ... | 2005 | 16195879 |