HydroBASINS lev08 watershed · #7080741760
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 5 administrative regions : Avoyelles, Catahoula, Concordia, Pointe Coupee, West Feliciana
Sub-basin area
430,6km²
Upstream area
239 195,1km²
Discharge
2 186,6m³/s
Mean elev.
18m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Black River64 km²
- Bassin de Black River33 km²
5 dept-equivalent regions (GADM L2)
- 200.9 km²46.7% of basin
- 168.3 km²39.1% of basin
- 31.9 km²7.4% of basin
- 28.9 km²6.7% of basin
- 0.2 km²0.0% of basin
8 intersecting protected areas
Reserve Program
13.79 km² overlap
Watershed Protection
12.22 km² overlap
Lake Ophelia
IUCN IVNational Wildlife Refuge
1.92 km² overlap
Us-La-108-3
IUCN Not AssignedConservation Easement
1.71 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Avoyelles, LA
IUCN VConservation Easement
1.08 km² overlap
Reserve Program
1.02 km² overlap
Reserve Program
0.14 km² overlap
Reserve Program
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
267 distinct species · 1 866 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 : 32 espèces reliées par 79 interactions GloBI sur 4 types (connectance 8.4%, filtre Serrano α=0.2). 12 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°
18,9°C
Annual rain
1 517mm
Moisture idx (CMI)
0,06
Runoff
672mm/an
PET
1 432mm
AET
1 136mm
Mean slope
0,5°
Water table
19cm
Forest
76%
Crops
18%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)