HydroBASINS lev08 watershed · #7080061770
Bassin de Northwest 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 : Division No. 7
Sub-basin area
387km²
Upstream area
387km²
Discharge
9,95m³/s
Mean elev.
51m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Division No. 7337.7 km²87.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
120 distinct species · 450 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Northwest River : 34 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 64 interactions GloBI sur 4 types (connectance 7.8%, filtre Serrano α=0.2). 7 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°
4,5°C
Annual rain
1 042mm
Moisture idx (CMI)
0,40
Runoff
865mm/an
PET
623mm
AET
542mm
Mean slope
3,5°
Water table
232cm
Forest
77%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)