Biological invasion 1 Biological invasions 1 Chile 1 Conservation 1 Exotic species 1 Extinction 1 Fish 1 Fish assemblages 1 Freshwater fishes 1 Functional diversity 1 Invasive alien species Native species 1 Neotropical fish 1 Specialisation 1 Water 1 assembly rule 1 divergence 1 endangered species 1 freshwater ecosystem 1 functional response 1 invasive species 1 native species 1 species richness 1 taxonomy 1