HydroBASINS lev08 watershed · #7080666320
Bassin de Saint Francis 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 : Lee, Saint Francis
Sub-basin area
207,9km²
Upstream area
16 700,2km²
Discharge
316,19m³/s
Mean elev.
57m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Fifteen Mile Bayou1302 km²
- Bassin de Saint Francis River359 km²
2 dept-equivalent regions (GADM L2)
- LeeArkansas · United States198.7 km²95.6% of basin
- Saint FrancisArkansas · United States9.2 km²4.4% of basin
3 intersecting protected areas
Reserve Program
12.05 km² overlap
Us-Ar-30-14
IUCN Not AssignedConservation Easement
1.79 km² overlap
Reserve Program
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
169 distinct species · 826 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Saint Francis River : 26 espèces reliées par 114 interactions GloBI sur 4 types (connectance 15.4%, 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°
16,0°C
Annual rain
1 312mm
Moisture idx (CMI)
0,02
Runoff
708mm/an
PET
1 284mm
AET
979mm
Mean slope
0,2°
Water table
6cm
Forest
3%
Crops
77%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)