HydroBASINS lev08 watershed · #7080377710
Bassin de Yakima River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Benton
Sub-basin area
234,5km²
Upstream area
15 759,9km²
Discharge
96,72m³/s
Mean elev.
157m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cold Creek839 km²
- Bassin de Yakima River375 km²
1 dept-equivalent regions (GADM L2)
- Benton235.1 km²100.0% of basin
4 intersecting protected areas
Reserve Program
7.97 km² overlap
Chamna
IUCN VNatural Preserve
0.69 km² overlap
National Wildlife Refuge
0.24 km² overlap
Hanford Reach
IUCN VNational Monument
0.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
802 distinct species · 41 159 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Bassin de Yakima River : 22 espèces reliées par 84 interactions GloBI sur 4 types (connectance 15.0%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,7°C
Annual rain
190mm
Moisture idx (CMI)
-0,83
Runoff
24mm/an
PET
1 116mm
AET
168mm
Mean slope
1,7°
Water table
499cm
Forest
40%
Crops
42%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)