[n = 5]
| Year / Period | From | To | Established | Ecol. effects |
|---|---|---|---|---|
| 1960 - 1969 | Uganda | Cameroon | established | some |
| 1960 - 1970 | Uganda | Congo | probably not established | unknown |
| 1960 - 1969 | Uganda | Zaire | established | some |
| 1969 | Uganda | Central African Republic | established | some |
| 1971 | Uganda | Zambia | not established |