Rivière· 105 segments
Chehalis River
Crosses 3 administrative regions : Grays Harbor, Lewis, Thurston
Total length
247km
Max discharge
227,7m³/s
Max Strahler
5
Segments matched
105
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- Grays HarborWashington · United States98.6 kmin this dpt
- LewisWashington · United States79.2 kmin this dpt
- ThurstonWashington · United States20.2 kmin this dpt
7 intersecting protected areas
Wildlife Area Complex
Natural Area Preserve
PCON90
IUCN VPrivate Conservation
Marine Protected Area
Reserve Program
Forestry Riparian Easement Program 280
IUCN Not AssignedEasement
PCON11
IUCN VPrivate Conservation
1 page = 1 named river (aggregation of 105 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
120 distinct species · 768 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Chehalis River : 28 espèces reliées par 78 interactions GloBI sur 4 types (connectance 11.1%, filtre Serrano α=0.2). 10 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
247km
Max discharge
227,7m³/s
Max Strahler
5
Segments matched
105
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.