Table 3.
Rank | Scenario | Total profit with legal trade (MM US$) | Rhinoceros population size | Total profit, no trade (MM US$) |
---|---|---|---|---|
1 | medium increase in no. of rangers & fine | 717 | 25,690 | −147 |
2 | big increase in no. of rangers & fine | 709 | 34,920 | −189 |
3 | big increase in no. of rangers | 698 | 34,356 | −190 |
4 | medium increase in no. of rangers | 629 | 18,886 | −149 |
5 | small increase in no. of rangers & fine | 583 | 3,332 | −132 |
6 | small increase in no. of rangers | 456 | 0 | −136 |
7 | no trade (business as usual) | 353 | 0 | −128 |
8 | increase fine only | 334 | 0 | −123 |
Only the 4 top scenarios maintain the rhinoceros population above its size in 2010, and a positive total profit is only possible for scenarios with legal trade. The values shown are robust. For more information see Supporting Information.