Table 3b. Regression slope and intercept estimates.

Data set	Slope	Upper CI	Lower CI	Intercept	Upper CI	Lower CI
5	−0.63	−0.38	−0.79	−2.34	−1.96	−2.61
11	−0.74	−0.37	−0.91	−2.54	−2.01	−2.81

Abbreviation: CI, confidence interval.

The first column gives the number of individuals sampled for each species in the data set. The slope and the intercept of the regression line are given. CIs for each variable are labelled as ‘Upper CI' and ‘Lower CI'.