| Impact ID | 8998 |
| Impact Type | Habitat Alteration |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Rhamnus frangula (glossy buckthorn) is threatening the current ground vegetation and preventing oak seedling growth in oak savannas, which is an endangered ecosystem in the Midwest. |
| Reference | 703 |
| Cost | |
| Location | |