Invasion
Invasion Description
None
Geographic Extent
OR/Umpqua River (Lampman 1945, non-reproducing migrants)
Vectors
| Level | Vector |
|---|---|
| Probable | Natural Dispersal |
None
OR/Umpqua River (Lampman 1945, non-reproducing migrants)
| Level | Vector |
|---|---|
| Probable | Natural Dispersal |