| Impact ID | 5055 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | American bullfrogs, Lithobates catesbeianus, compete with the critically endangered San Francisco garter snake, Thamnophis sirtalis tetrataenia, for prey resources. Competition is due to seasonal diet overlaps. |
| Reference | 37684 |
| Cost | |
| Location | San Francisco, California |