Table 4 Variation between 1990 and 2018 as regards the values obtained for the different fragmentation indicators by forest type, showing the Z and p-value from the Wilcoxon paired test. Mean-dif = value 2018 – value 1990; SD = standard deviation
Forest type | Deciduous | Semi-deciduous | Transition | ||||
|---|---|---|---|---|---|---|---|
Year | 1990 | 2018 | 1990 | 2018 | 1990 | 2018 | |
RFI (%) | Mean | 39.14 | 49.75 | 45.92 | 59.47 | 33.94 | 42.99 |
SD | 27.34 | 32.96 | 16.17 | 23.34 | 22.22 | 26.79 | |
Median | 42.18 | 49.12 | 49.1 | 54.07 | 33.73 | 42.56 | |
Mean-dif (± SD) | 11.20 (± 19.18) | 16.53 (± 24.17) | 9.58 (± 17.45) | ||||
Z | 15.08 | 28.32 | 20.34 | ||||
p-value | p < 0.0001 | p < 0.0001 | p < 0.0001 | ||||
NumP | n | 595 | 511 | 1528 | 1334 | 1089 | 1021 |
Mean | 7.48 | 7.39 | 5.72 | 5.14 | 5.58 | 4.73 | |
SD | 10.79 | 11.62 | 7.15 | 7.25 | 6.93 | 6.51 | |
Median | 3 | 3 | 4 | 3 | 3 | 3 | |
Mean-dif (± SD) | −1.11 (± 5.26) | −1.15 (± 4.30) | −1.13 (± 4.86) | ||||
Z | −7.02 | −11.26 | −8.51 | ||||
p-value | p < 0.0001 | p < 0.0001 | p < 0.0001 | ||||
MPS (km2) | Mean | 2.34 | 2.35 | 0.92 | 0.58 | 2.51 | 2.15 |
SD | 3.55 | 3.40 | 1.90 | 1.46 | 3.36 | 3.06 | |
Median | 0.35 | 0.47 | 0.17 | 0.12 | 0.72 | 0.64 | |
Mean-dif (± SD) | −0.31 (± 1.88) | −0.38 (± 1.31) | −0.49 (± 2.19) | ||||
Z | −8.03 | −18.00 | −9.21 | ||||
p-value | p < 0.0001 | p < 0.0001 | p < 0.0001 | ||||
MedPS (km2) | Mean | 2.11 | 2.16 | 0.76 | 0.47 | 2.24 | 1.91 |
SD | 3.64 | 3.48 | 1.92 | 1.46 | 3.49 | 3.16 | |
Median | 0.02 | 0.07 | 0.05 | 0.05 | 0.08 | 0.14 | |
Mean-dif (± SD) | −0.25 (± 2.19) | −0.32 (± 1.44) | −0.43 (± 2.50) | ||||
Z | −4.59 | −11.30 | −5.42 | ||||
p-value | p < 0.0001 | p < 0.0001 | p < 0.0001 | ||||
TE (km) | Mean | 15.42 | 15.01 | 15.59 | 11.91 | 20.90 | 18.02 |
SD | 12.14 | 10.91 | 12.59 | 10.67 | 12.85 | 11.76 | |
Median | 13.39 | 13.73 | 12.83 | 8.73 | 20.21 | 17.15 | |
Mean-dif (± SD) | −2.48 (± 7.98) | −4.86 (± 10.13) | −3.94 (± 10.89) | ||||
Z | −6.6 | −18.57 | −10.22 | ||||
p-value | p < 0.0001 | p < 0.0001 | p < 0.0001 | ||||
ED (km·km−2) | Mean | 42.92 | 35.57 | 20.04 | 29.52 | 23.26 | 31.51 |
SD | 259.28 | 106.75 | 45.19 | 74.97 | 97 | 214 | |
Median | 7.05 | 9.02 | 13.02 | 17.43 | 7.13 | 8.72 | |
Mean-dif (± SD) | −7.35 (± 269) | 9.49 (± 71.8) | 8.26 (± 218) | ||||
Z | 6.04 | 16.71 | 10.03 | ||||
p-value | p < 0.0001 | p < 0.0001 | p < 0.0001 | ||||