HydroBASINS lev08 watershed · #7080668250
Bassin de Mississippi 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 6 administrative regions : Crittenden, Desoto, Lee, Phillips, Saint Francis +1
Sub-basin area
642,6km²
Upstream area
2 375 055,8km²
Discharge
15 360,63m³/s
Mean elev.
59m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mississippi River215 km²
- Bassin de Mississippi River185 km²
6 dept-equivalent regions (GADM L2)
- 294.5 km²45.8% of basin
- LeeArkansas · United States209.2 km²32.6% of basin
- CrittendenArkansas · United States91.9 km²14.3% of basin
- Desoto29.2 km²4.5% of basin
- Saint FrancisArkansas · United States14.8 km²2.3% of basin
- PhillipsArkansas · United States3.0 km²0.5% of basin
6 intersecting protected areas
Us-Ar-30-2
IUCN Not AssignedConservation Easement
9.33 km² overlap
Conservation Easement
6.22 km² overlap
Reserve Program
5.93 km² overlap
Us-Ms-58-6
IUCN Not AssignedConservation Easement
4.62 km² overlap
Reserve Program
2.52 km² overlap
Reserve Program
1.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
496 distinct species · 14 217 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 Mississippi River : 25 espèces reliées par 75 interactions GloBI sur 3 types (connectance 13.4%, filtre Serrano α=0.2). 9 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 318mm
Moisture idx (CMI)
0,03
Runoff
755mm/an
PET
1 279mm
AET
978mm
Mean slope
0,6°
Water table
34cm
Forest
37%
Crops
54%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)