HydroBASINS lev08 watershed · #8080211930
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 1 administrative regions : Fort Smith
Sub-basin area
1 612,7km²
Upstream area
29 028,8km²
Discharge
130,74m³/s
Mean elev.
260m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #80802229202634 km²
- Bassin de Thelon River371 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith1622.8 km²100.0% of basin
1 intersecting protected areas
Thelon Wildlife Sanctuary
IUCN IbWildlife Sanctuary
572.40 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
112 distinct species · 314 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 : 22 espèces reliées par 79 interactions GloBI sur 4 types (connectance 13.3%, filtre Serrano α=0.2). 13 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°
-10,2°C
Annual rain
253mm
Moisture idx (CMI)
-0,28
Runoff
151mm/an
PET
352mm
AET
231mm
Mean slope
1,4°
Water table
60cm
Forest
0%
Crops
0%
Urban
0%
Protected
35%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)