scientific ecological infographic showing Lewontin niche construction example in New England forests. Panel 1: pre-1850 white pine forest (Pinus strobus) with tall conifers and pine needle litter. Panel 2: logging disturbance with cut stumps and increased sunlight. Panel 3: hardwood broadleaf forest dominating (oak, maple, beech) creating dense shade and thick leaf litter. Show pine seedlings failing to grow under the hardwood canopy. Include arrows explaining mechanisms: shade, soil chemistry change, leaf litter accumulation, competition. clean textbook illustration style, labeled ecological processes, natural colors, educational diagram. Mehr sehen