| Impact ID | 8304 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | Stable isotope analysis indicated that the diet of the New Zealand mudsnail (Potamopyrgus antipodarum) overlaps with the diets of coexisting native invertebrates in the Columbia River Estuary. However, the authors also found that P. antipodarum foraging was decreased in the presence of native Gnorimosphaeroma insulare, while foraging of G. insulare was unaffected by interspecific competition. |
| Reference | 24663 |
| Cost | |
| Location | Columbia River Estuary |