| Impact ID | 3435 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In some parts of the United States, native beavers (Castor canadensis) have reduced the abundance of M. aquaticum as much as 90% through direct consumption. |
| Reference | 33981 |
| Cost | |
| Location | |