Table 3.
Changes in three Dracaena sp. potential coverage until 2050 according to two contrasting climate change scenarios
| Species | Statistical distribution of a potential rangea | Current potential coverage (×1,000 km2) | Future potential coverage—climate change scenario | |||
|---|---|---|---|---|---|---|
| RCP2.6 | RCP8.5 | |||||
| Area (×1,000 km2) | Relative change (%) | Area (×1,000 km2) | Relative change (%) | |||
| D. afromontana | Median range | 573.4 | 250.1 | −56.3 | 166.5 | −63.7 |
| Minimum range | 209.1 | 107.0 | −48.8 | 76.0 | −70.9 | |
| Maximum range | 1,531.0 | 599.1 | −60.9 | 336.9 | −78.0 | |
| D. camerooniana | Median range | 2,698.5 | 1,954.6 | −27.6 | 1,066.0 | −60.5 |
| Minimum range | 1,160.0 | 1,057.6 | −8.8 | 539.2 | −53.5 | |
| Maximum range | 4,450.7 | 3,102.0 | −30.3 | 1,958.1 | −56.0 | |
| D. surculosa | Median range | 1,028.4 | 1,486.6 | +44.6 | 1,763.1 | +71.5 |
| Minimum range | 578.9 | 820.7 | +41.8 | 853.4 | +47.4 | |
| Maximum range | 2,886.3 | 4,150.7 | +43.8 | 4,853.8 | +68.2 | |
a
Median range—potential distribution area calculated using median max SSS logistic threshold; Minimum range—potential distribution area calculated using maximum value of max SSS logistic threshold; Maximum range—potential distribution area calculated using minimum value of max SSS logistic threshold.