Rivière· 9 segments
Multnomah Channel
Crosses 3 administrative regions : Columbia, Cowlitz, Multnomah
Total length
37km
Max discharge
17,9m³/s
Max Strahler
4
Segments matched
9
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
11 intersecting protected areas
Sauvie Island
IUCN VWildlife Area
Burlington Bottoms
IUCN VMitigation Land
Burlington Bottoms
IUCN VLocal Conservation Area
Ennis Creek
IUCN VForest
Burlington Creek
IUCN VForest
Natural Area
Reserve Program
Howell South
IUCN VLocal Conservation Area
Flight's End
IUCN VEnvironmental System
2 more protected areassorted by area
Us-Or-113-1
IUCN Not AssignedConservation Easement
Natural Area
1 page = 1 named river (aggregation of 9 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
920 distinct species · 187 689 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Multnomah Channel : 19 espèces reliées par 83 interactions GloBI sur 4 types (connectance 15.7%, filtre Serrano α=0.2). 14 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
37km
Max discharge
17,9m³/s
Max Strahler
4
Segments matched
9
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.