Highly competitive native aquatic species could suppress the growth of invasive aquatic species with similar traits

摘要: Multiple invaders usually co-occur in an ecosystem and threaten the ecological safety of ecosystems. Invasive species from same origin could facilitate each other’s establishment, while some suppress invasion others with similar traits. For successful management aquatic ecosystems invaded by multiple invasive species, we need to better understand interaction between common-origin plants native traits a community. A Ludwigia peploides, two origin, Myriophyllum aquaticum Alternanthera philoxeroides were grown as monoculture (no competitor) or mixed culture (with determine interactions species. The biomass, morphological photosynthetic physiological measured. results showed that biomass traits, relative growth rate (except specific leaf area) L. peploides higher than those Additionally, had significantly M. (in all treatments) A. monoculture). mixed-culture treatments relatively less effect on most peploides. However, prominently reduced In addition, greater competitive both invaders. Overall, co-invasion was not observed. Furthermore, these support highly reduce success communities.