| Impact ID | 9002 |
| Impact Type | Habitat Alteration |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Found that in savanna ecosystems in Pennsylvania, the species richness was higher in areas where Rhamnus frangula (glossy buckthorn) was present. |
| Reference | 25460 |
| Cost | |
| Location | Allegheny Plateau, Pennsylvania, USA |