Table 4 The results of comparisons between observed and randomized re-burn patch size distributions for each of the three study areas. The distributions of all observed and randomized re-burn patches greater than 40 ha in size were tested using the Mann-Whitney U test statistic and the Kolmogorov-Smirnov Independent Samples Test (both using α = 0.05). Only the Frank Church Wilderness Area showed a difference between the observed and randomized re-burn patch size distributions (indicated by bolded significance values).
From: Characterizing Fire-on-Fire Interactions in Three Large Wilderness Areas
| Â | Bob Marshall | Selway-Bitterroot | Frank Church |
|---|---|---|---|
Number of re-burn cases (n) | 1 847 | 1 337 | 12 412 |
Mean re-burn patch size (ha) | 1 067.2 | 365.4 | 1 115.2 |
Median re-burn patch size (ha) | 388.4 | 224.9 | 382.4 |
Maximum re-burn patch size (ha) | 20 259 | 5 091 | 50 602 |
Standard deviation | 1 805.6 | 453.0 | 2 437.6 |
Mann-Whitney U | 20 948 | 13 628 | 1 118 051 |
Significance (P) | 0.057 | 0.080 | 0.000 |
Kolmogorov-Smirnov significance (P) | 0.270 | 0.082 | 0.000 |