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Factors analyzed in ANOVAs to determine if geography can account for variation in the occurrence of reproductive isolation
| Population | Number of known localities | River kM | Reproductive isolation code |
|---|---|---|---|
| Comal | 11 | 370 | 0 |
| Devils | 1 | 150 | 0 |
| SMR | 27 | 120 | 0 |
| SMS | 1 | 2 | 1 |
| Hyalella texana | 1 | 2 | 1 |
0 = interfertile; 1 = reproductively isolated.
