Before revision: The research found that the forest canopy shifted from a carbon “sink” (of net carbon absorption due to photosynthesis) to a carbon “source” (of net carbon respiration) following the defoliation of the canopy due to gypsy moths .
After revision: The research found that the forest canopy shifted from a carbon “sink” (of net carbon absorption due to photosynthesis) to a carbon “source” (of net carbon respiration) following the defoliation of the canopy due to the gypsy moth .