Table 3 Covariation values of the mean minimum balanced structure tree number (mean BSN) and upper limit of the 95% confidence interval of the minimum balanced structure tree number (BSN _0.975) with relative frequency, area (showing the geographical distribution of the particular species), and stand density of conifer and oak species investigated, and error probabilities P(Z ≥  C), calculated from 5,000 permutations

From: Estimating balanced structure areas in multi-species forests on the Sierra Madre Occidental, Mexico