Jacobsen et al. 2025. Norway maples found photosynthesizing later into autumn than native red and sugar maples
by Jack Jacobsen, Corey Gavigan, Jaiden Monteau, and Dr. Allyson Jackson
Abstract
Invasive tree species in the U.S., such as the Norway Maple, often have various advantages on native populations which allow for their ecological dominance. One possible advantage trees could have over one another are the duration of their photosynthetic period. The leaf phenology of Norway Maples, and the native Sugar and Red Maples were studied by researchers, documenting their canopy color and fullness throughout the fall. The results showed that Norway Maples do in fact continue to photosynthesize later into the year than its native counterparts. This could provide a look into the Norway Maple’s dominance in the U.S., as well as raise questions about the climate benefits of increased carbon capture.