Pw. Garrett et Re. Graber, SUGAR MAPLE SEED PRODUCTION IN NORTHERN NEW-HAMPSHIRE, USDA FOREST SERVICE NORTHEASTERN FOREST EXPERIMENT STATION RESEARCH PAPER, (697), 1995, pp. 1-6
Large numbers of sugar maple seed are dispersed every second or third
year. Very little seed was damaged by insects or mammals prior to disp
ersal. The trapping methods used prevented major losses following seed
fall. Seed production was positively correlated with tree diameter an
d density but not with age of seed trees.