Figure 1.

Relationship between gall midge diversity (vertical axis) and island geographical processes applied to plant taxa as islands. (a) Relationship between plant family range size (y-axis), plant family insularity (x-axis) decreases in plant family insularity and increases in plant family range size are associated with increases in cecidomyiid species richness. (b) Plant maximum height (y-axis) and plant genus insularity (x-axis) decreases in plant genus insularity and increases in plant genus maximum height are associated with increases in cecidomyiid species richness.