| Impact ID | 7256 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Water lettuce (Pistia stratiotes) invasion in a oxbow lake on the Sava River, Slovenia outcompeted and reduced macrophyte species abundance. Remaining species were significantly reduced as well. |
| Reference | 41788 |
| Cost | |
| Location | Sava River, Slovenia |