HydroBASINS lev08 watershed · #7080061070
Bassin de Cat Arm 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 2 administrative regions : Division No. 5, Division No. 9
Sub-basin area
852,3km²
Upstream area
852,5km²
Discharge
21,69m³/s
Mean elev.
459m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Division No. 5570.4 km²66.7% of basin
- Division No. 9284.6 km²33.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
109 distinct species · 266 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Cat Arm River : 25 espèces reliées par 71 interactions GloBI sur 4 types (connectance 11.3%, filtre Serrano α=0.2). 11 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°
1,6°C
Annual rain
1 135mm
Moisture idx (CMI)
0,53
Runoff
799mm/an
PET
534mm
AET
511mm
Mean slope
3,2°
Water table
137cm
Forest
55%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)