| Impact ID | 4607 |
| Impact Type | Habitat Alteration |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Dense stands of Phalaris arundinacea were associated with a change in the community composition of arthropods; species richness decreased where Phalaris arundinacea dominated. |
| Reference | 36923 |
| Cost | |
| Location | Portland, OR, USA |