HydroBASINS lev08 watershed · #8080199510
Bassin de Thelon 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 : Fort Smith, Keewatin
Sub-basin area
350,3km²
Upstream area
50 989,9km²
Discharge
238,92m³/s
Mean elev.
122m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #8080196460890 km²
- Bassin de Thelon River370 km²
2 dept-equivalent regions (GADM L2)
- Fort Smith226.5 km²64.2% of basin
- 126.1 km²35.8% of basin
2 intersecting protected areas
Thelon Wildlife Sanctuary
IUCN IbWildlife Sanctuary
335.04 km² overlap
Thelon Wildlife Sanctuary
IUCN IbWildlife Sanctuary
52.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
24 distinct species · 35 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Thelon River : 16 espèces reliées par 20 interactions GloBI sur 2 types (connectance 13.1%, filtre Serrano α=0.2). 2 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°
-11,4°C
Annual rain
210mm
Moisture idx (CMI)
-0,34
Runoff
175mm/an
PET
317mm
AET
201mm
Mean slope
1,3°
Water table
46cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)