Table 2.

Correlations between rainfall and each of the variables being studied for localities receiving rainfall over 2,000 mm/year

Comparison	Localities ⇒ 2,000 mm/year, n	Correlation	Approximate 95% confidence interval
Primate species vs. rainfall, n	62	−0.33	(−0.53, −0.07)
Productivity vs. rainfall	22	−0.31	(−0.57, −0.03)
Tree species vs. rainfall, n	60	0.48	(0.29, 0.65)
Wet months vs. rainfall, n	58	0.51	(0.33, 0.62)

Confidence intervals were computed using the bias-corrected nonparametric bootstrap methodology (78). Inference is not sensitive to the choice of the 2,000-mm/year cutoff value used here.