Ruisseau· 48 segments
South Fork Toutle River
Crosses 2 administrative regions : Cowlitz, Skamania
Total length
52km
Max discharge
15,8m³/s
Max Strahler
3
Segments matched
48
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
3 intersecting protected areas
Mount St. Helens
IUCN VNational Volcanic Monument
Mount St. Helens
IUCN VGeothermal Area
Wildlife Area Complex
1 page = 1 named river (aggregation of 48 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
32 distinct species · 69 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Toutle River : 15 espèces reliées par 16 interactions GloBI sur 2 types (connectance 10.5%, filtre Serrano α=0.2). 3 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
52km
Max discharge
15,8m³/s
Max Strahler
3
Segments matched
48
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.