HydroBASINS lev08 watershed · #7080636730
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 5 administrative regions : Butler, Clay, Dunklin, Greene, Stoddard
Sub-basin area
853,2km²
Upstream area
5 096,4km²
Discharge
76,82m³/s
Mean elev.
88m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Saint Francis River1373 km²
- Bassin de Dudley Main Ditch456 km²
5 dept-equivalent regions (GADM L2)
- 404.1 km²47.3% of basin
- ClayArkansas · United States210.5 km²24.7% of basin
- Butler133.9 km²15.7% of basin
- GreeneArkansas · United States65.0 km²7.6% of basin
- 40.1 km²4.7% of basin
18 intersecting protected areas
Reserve Program
10.89 km² overlap
Wilhelmina
IUCN VConservation Area
6.12 km² overlap
Reserve Program
5.18 km² overlap
Cash (Ben) Memorial
IUCN VConservation Area
4.78 km² overlap
Otter Slough
IUCN VConservation Area
2.59 km² overlap
State Wildlife Management Area
2.39 km² overlap
Cash Swamp
IUCN VNatural Area
1.52 km² overlap
Reserve Program
1.07 km² overlap
Watershed Protection
0.84 km² overlap
9 more protected areassorted by overlap area
Frisbee Cutoff
IUCN VAccess
0.40 km² overlap
Chalk Bluff Trail
IUCN VAccess
0.33 km² overlap
Reserve Program
0.29 km² overlap
Reserve Program
0.27 km² overlap
Reserve Program
0.27 km² overlap
Chalk Bluff
IUCN VNatural Area
0.22 km² overlap
Conservation Easement
0.20 km² overlap
Watershed Protection
0.06 km² overlap
National Wildlife Refuge
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 247 distinct species · 77 552 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 : 18 espèces reliées par 66 interactions GloBI sur 3 types (connectance 15.2%, 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°
14,8°C
Annual rain
1 225mm
Moisture idx (CMI)
-0,02
Runoff
628mm/an
PET
1 252mm
AET
929mm
Mean slope
0,3°
Water table
16cm
Forest
2%
Crops
74%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)