HydroBASINS lev08 watershed · #7080683000
Bassin de Red 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 4 administrative regions : Bryan, Choctaw, Fannin, Lamar
Sub-basin area
465,5km²
Upstream area
107 898,3km²
Discharge
249,18m³/s
Mean elev.
164m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Bois d'Arc Creek1086 km²
- Bassin de Red River71 km²
4 dept-equivalent regions (GADM L2)
- Lamar183.2 km²39.4% of basin
- BryanOklahoma · United States129.2 km²27.8% of basin
- ChoctawOklahoma · United States126.1 km²27.1% of basin
- Fannin26.8 km²5.8% of basin
1 intersecting protected areas
Reserve Program
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
550 distinct species · 1 501 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 53 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 Red River : 40 espèces reliées par 157 interactions GloBI sur 4 types (connectance 11.4%, 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°
16,9°C
Annual rain
1 125mm
Moisture idx (CMI)
-0,18
Runoff
322mm/an
PET
1 365mm
AET
951mm
Mean slope
0,8°
Water table
65cm
Forest
60%
Crops
39%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)