| Impact ID | 3908 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | This species is part of the diet of waterfowl, and was observed to make up half of the stomach contents of the green-winged teal in Lake Champlain in 1935. |
| Reference | 34984 |
| Cost | |
| Location | Lake Champlain, Vermont, USA |