HydroBASINS lev08 watershed · #7080611270
Bassin de Walnut 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 : Cowley
Sub-basin area
314,6km²
Upstream area
5 135,5km²
Discharge
28,26m³/s
Mean elev.
363m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Timber Creek416 km²
- Bassin de Walnut River335 km²
1 dept-equivalent regions (GADM L2)
- 314.8 km²100.0% of basin
1 intersecting protected areas
Kaw
IUCN IVWildlife Area
0.37 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
591 distinct species · 5 512 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Walnut River : 31 espèces reliées par 117 interactions GloBI sur 4 types (connectance 15.0%, 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°
14,2°C
Annual rain
873mm
Moisture idx (CMI)
-0,31
Runoff
191mm/an
PET
1 273mm
AET
740mm
Mean slope
1,1°
Water table
139cm
Forest
2%
Crops
53%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)