| Impact ID | 9360 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Field |
| Impact Description | Faxonius rusticus have replaced the native F. propinquus and invasive F. virilis as the most dominant member of the contemporary crayfish fauna in Wisconsin. F. rusticus outcompetes these species for resources due to their more aggressive nature and larger chela. |
| Reference | 13232 |
| Cost | |
| Location | Trout Lake, Vilas County, Wisconsin, USA |