Fig. 3

Latitudinal range limits of Panama’s 3043 tree species. Blue points are northern limits and green southern limits. The species are sorted by the southern range limit, so the green points form a smooth curve. Two red lines show Panama’s latitude (7.2^∘−9.6^∘ N), and two orange lines show the Tropics of Cancer and Capricorn (23.26^∘). The gray curves show mean ± SD of the northern limit for each successive group of 200 species