Figure 11.3 The distribution of two monkeyflower species. The scarlet monkeyflower is found at low elevations whereas Lewis’ monkeyflower grows at high elevations, as shown in the cross-section of the mountain. When transplanted to gardens at different elevations, the scarlet monkeyflower survives best at low elevations while Lewis’ monkeyflower survives best at high elevations. Similar patterns occur for plant growth. Error bars are standard errors.
Data from A. L. Angert and D. W. Schemske, The evolution of species’ distributions: Reciprocal transplants across the elevation ranges of Mimulus cardinalis and M. lewisii, Evolution 59 (2005): 1671–1684.