Elevational Patterns of Plant Richness in the Taibai Mountain, China

Figure 5

Midpoint method to test Rapoport’s elevational rule. The straight and the dotted curved lines show the simple linear and the second-order polynomial regression models, respectively. Overall plants (a), seed plants (b), bryophyte (c), and fern (d).

(a)

(b)

(c)

(d)