Regression analysis across the entire gradient for average temperature with (3) estimated species richness, (4) Fisher's alpha, and regression analysis at the three highest elevations for average temperature with (5) estimated species richness, and (6) Fisher's alpha. (3) r2 = 0.5518, p = 0.150; (4) r2 = 0.7264, p = 0.067; (5) r2 = 0.9391, p = 0.159; (6) r2 = 0.7364, p = 0.343.