walking in spring woods

walking in spring woods

invasives green

In the spring, the invasive shrubs in the understory at Shaver's Creek have green leaves to take advantage of extra sunlight while the overstory canopy is leafless. However, native shrubs have barely burst leaf buds. Citizen scientists collected data on this phenomenon of extended leaf phenology across the Northeast.  

IMAGE: Erynn Maynard-Bean/Penn State