Fig. 3.

Change in the average number of habitat patches occupied (range size) by the species that persist during environmental change (A), the interspecific variation in range size change, excluding species that go extinct (B), and the leading vs. trailing edge asymmetry of the range expansion (C), depending on dispersal and adaptive potential (color). Positive (negative) values of range change asymmetry indicate that the centroid of the range shifted toward warmer (colder) conditions, relative to the mean environmental optima of the species. The lines show the median value across 50 replicate simulations with standard parameter values (SI Appendix, Table S1) and the bands show the interquartile range. Analog and nonanalog regions are included together in these estimates. The lines for adaptive potential = 0 do not extend to the lowest dispersal rates because all species went extinct during environmental change.