Fig 4. Gleditsia triacanthos seedling abundance with increased distance from mature parent trees in (a) grazed and (b) all other habitats.

The fitted lines follow a negative exponential pattern. The dashed line in the graphic represents the tree drip line, which is the distance between the trunk and furthest extension of branches. The drip line represents an approximate maximum dispersal distance for passively dispersed seed pods that drop from the tree.