Table 3. Reductions in suitable habitats (i.e. areas with probability of occurrence > 80%) of endemic plant species in the Caatinga in two scenarios of climate change: An optimistic (RCP4.5) and a more pessimistic (RCP8.5).
Suitable habitats (km2) | |||||||
---|---|---|---|---|---|---|---|
Current | RCP4.5 | RCP8.5 | Test | P | |||
Mean±SD | Mean±SD | % of loss or gain* | Mean±SD | % of loss or gain** | |||
Endemic plant species | 122581.7±4877.9a | 110788.1±4308.6b | ↓9.62 | 110440.5±4583.7b | ↓9.90 | F2,87 = 67.85 | 0.001 |
Habit | |||||||
Arboreous | 119288.3±7234.5a | 106473.5±4773.1b | ↓11.74 | 110094.3±7401.0b | ↓7.71 | F2,87 = 30.24 | 0.001 |
Non arboreous | 112983.3±4530.0a | 103499.3±3483.5b | ↓8.39 | 98567.6±3571.8c | ↓12.76 | F2,87 = 106.4 | 0.001 |
Pollination systems | |||||||
Generalist | 111537.6±6329.7a | 107711.7±5013.4b | ↓3.43 | 100276.9±4255.0c | ↓10.09 | F2,87 = 35.4 | 0.001 |
Specialized | 107994.4±5434.7a | 93500.4±2736.3b | ↓13.42 | 94776.7±3025.6b | ↓12.24 | F2,87 = 125.5 | 0.001 |
Dispersal modes | |||||||
Abiotic | 119282.0±5458.4a | 99896.4±3716.0c | ↓16.25 | 10338.3±3404.8b | ↓8.67 | F2,87 = 174.1 | 0.001 |
Biotic | 84314.2±19416.0a | 90201.4 ±17068.8a | ↑6.98 | 93551.2±3677.1a | ↑10.95 | F2,87 = 2.89 | 0.07 |
Reproductive systems | |||||||
Self-compatible | 168065.1±15429.1a | 136967.9±17730.4b | ↓18.50 | 133532.9±10519.9b | ↓20.54 | H = 47.955 | 0.001 |
Self-incompatible/ Dioecious |
166369.3±7255.8a | 127526.6±7038.0b | ↓23.35 | 118489.1±4619.0c | ↓28.78 | F2,87 = 471.6 | 0.001 |
Significant differences in post-hoc comparisons among scenarios are indicated by different letters in the same row. Percentage of loss (↓) or gain (↑) of suitable habitat area comparing the current scenario with RCP4.5* and the current with RCP8.5**.