| Impact ID | 5516 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | The American bullfrog, Lithobates catesbeianus, goes through ontogenetic dietary-habitat shifts, so that moves up the food chain after its metamorphosis into an adult. These dietary changes shift even further when in the presence of another invader, the red swamp crayfish Procambarus clarki. |
| Reference | 37710 |
| Cost | |
| Location | Monterotondo Scalo, Rome, Italy |