| Impact ID | 4006 |
| Impact Type | Habitat Alteration |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | When starry stonewort (Nitellopsis obtusa) dominates, biomass of all other competing species declines significantly. |
| Reference | 19736 |
| Great Lakes Region | Yes |
| Cost | |
| Location | Michigan, USA |
