Ruisseau· 5 segments
South Fork Umatilla River
Crosses 1 administrative regions : Umatilla
Total length
18km
Max discharge
0,8m³/s
Max Strahler
3
Segments matched
5
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- UmatillaOregon · United States21.0 kmin this dpt
1 intersecting protected areas
North Fork Umatilla
IUCN IbWilderness
1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
112 distinct species · 293 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de South Fork Umatilla River : 16 espèces reliées par 45 interactions GloBI sur 4 types (connectance 12.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
18km
Max discharge
0,8m³/s
Max Strahler
3
Segments matched
5
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.