HydroBASINS lev08 watershed · #7080725490
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 2 administrative regions : Natchitoches, Red River
Sub-basin area
510,6km²
Upstream area
164 008,4km²
Discharge
965,04m³/s
Mean elev.
47m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Red River242 km²
- Bassin de Loggy Bayou48 km²
2 dept-equivalent regions (GADM L2)
- 339.8 km²66.6% of basin
- 170.4 km²33.4% of basin
4 intersecting protected areas
Red River
IUCN IVNational Wildlife Refuge
6.58 km² overlap
Reserve Program
5.11 km² overlap
Reserve Program
1.71 km² overlap
Conservation Easement
0.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
615 distinct species · 55 875 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 Red River : 24 espèces reliées par 61 interactions GloBI sur 3 types (connectance 10.9%, filtre Serrano α=0.2). 10 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°
18,0°C
Annual rain
1 304mm
Moisture idx (CMI)
-0,10
Runoff
449mm/an
PET
1 447mm
AET
1 050mm
Mean slope
0,6°
Water table
39cm
Forest
68%
Crops
35%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)