Table 2. Niche dynamics values estimated using climatic conditions in the native and invaded regions.
| Niche comparisons | Overlap (O) | Unfilled (U) | Expansion (E) |
| Native vs. Australia | 1 | 0.17 | 0 |
| Native vs. Africa | 1 | 0.47 | 0 |
| Native vs. India | 0.79 | 0.23 | 0.20 |
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