Highbush blueberry plants belonging to a particular species grow in a wide range of environments in North Carolina. Plants growing in acidic bogs are slower growing than plants on fertile, better-drained floodplains. In a reciprocal transplant study, plants from a bog were transplanted to a floodplain and plants from a floodplain were transplanted to a bog. The transplants from the bog performed better in the floodplain, but not as well as plants native to the floodplain. The transplants from the floodplain performed more poorly in the bog, about the same as plants native to the bog. What can we conclude from this experiment about the causes of differences in growth rate between the bog and floodplain populations