By Dr Ananya Mandal, MD. Dopamine is a neurotransmitter released by the brain that plays a number of roles in humans and other animals. Some of its notable functions are in: 1  movement. 2  memory. 3  pleasurable reward.
Sycamores (Platanus spp.) are tall, spreading shade trees. These North American natives have few problems or pests, but their older bark flakes off in patches. If your sycamore is shedding bark, it may be a healthy, maturing tree.
Removal of sycamore from woodland. Removal of sycamore from ancient woodland and other woodland of conservation concern is. often justified on the basis of its non-native invasive status, the dense shade cast and its. impact on woodland flora 26 ; sycamore is compared to beech and hawthorn in terms of. shade 27, 28 .