HydroBASINS lev08 watershed · #7080579150
Bassin de North Fork Walnut Creek
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 : Ness
Sub-basin area
182,3km²
Upstream area
1 597,3km²
Discharge
1,17m³/s
Mean elev.
723m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #7080577450195 km²
- Bassin · #7080577580171 km²
1 dept-equivalent regions (GADM L2)
- 182.4 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
267 distinct species · 2 895 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 North Fork Walnut Creek : 25 espèces reliées par 117 interactions GloBI sur 4 types (connectance 17.6%, 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°
11,8°C
Annual rain
539mm
Moisture idx (CMI)
-0,57
Runoff
28mm/an
PET
1 265mm
AET
460mm
Mean slope
0,7°
Water table
230cm
Forest
0%
Crops
60%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)