| Impact ID | 5501 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | American bullfrogs, Lithobates catesbeianus, compete against the invasive red swamp crayfish, Procambarus clarkii, in its non-native range in Italy. |
| Reference | 37709 |
| Cost | |
| Location | Central Italy |