HydroBASINS lev08 watershed · #7080377730
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
10,2km²
Upstream area
15 930,4km²
Discharge
96,82m³/s
Mean elev.
120m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Yakima River235 km²
- Bassin de Amon Creek West Fork160 km²
1 dept-equivalent regions (GADM L2)
- Benton10.2 km²100.0% of basin
4 intersecting protected areas
Yakima River Deltal Mgt
IUCN VLocal Conservation Area
1.26 km² overlap
Columbia Point South
IUCN VLocal Conservation Area
0.84 km² overlap
Chamna
IUCN VNatural Preserve
0.43 km² overlap
Bateman Island
IUCN VLocal Conservation Area
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
672 distinct species · 169 466 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 3 types (connectance 13.7%, filtre Serrano α=0.2). 9 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°
12,0°C
Annual rain
194mm
Moisture idx (CMI)
-0,83
Runoff
19mm/an
PET
1 121mm
AET
172mm
Mean slope
1,1°
Water table
202cm
Forest
59%
Crops
42%
Urban
42%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)