HydroBASINS lev08 watershed · #7080682120
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 : Bolivar, Coahoma, Desha, Lee, Phillips +1
Sub-basin area
1 275,6km²
Upstream area
2 397 213,8km²
Discharge
15 765,49m³/s
Mean elev.
51m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
6 dept-equivalent regions (GADM L2)
- PhillipsArkansas · United States502.6 km²39.4% of basin
- DeshaArkansas · United States289.9 km²22.7% of basin
- 281.0 km²22.0% of basin
- 167.9 km²13.2% of basin
- 33.9 km²2.7% of basin
- LeeArkansas · United States0.0 km²0.0% of basin
15 intersecting protected areas
Cache-Lower White Rivers
IUCN Not ReportedWetland of International Importance (Ramsar Site)
141.12 km² overlap
Dale Bumpers White River
IUCN IVNational Wildlife Refuge
47.18 km² overlap
Reserve Program
10.85 km² overlap
Reserve Program
9.82 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Phillips, AR
IUCN VConservation Easement
5.59 km² overlap
Reserve Program
5.12 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not AssignedReserve Program
4.68 km² overlap
Us-Ms-58-2
IUCN Not AssignedConservation Easement
4.67 km² overlap
National Wildlife Refuge
3.82 km² overlap
6 more protected areassorted by overlap area
Watershed Protection
3.77 km² overlap
Reserve Program
2.62 km² overlap
Us-Ms-58-6
IUCN Not AssignedConservation Easement
2.26 km² overlap
Turkey Ridge
IUCN IaResearch Natural Area
1.52 km² overlap
National Wildlife Refuge
1.46 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Bolivar, MS
IUCN VConservation Easement
0.19 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 268 distinct species · 19 841 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 Mississippi River : 31 espèces reliées par 85 interactions GloBI sur 4 types (connectance 9.9%, filtre Serrano α=0.2). 11 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°
16,5°C
Annual rain
1 331mm
Moisture idx (CMI)
0,02
Runoff
712mm/an
PET
1 307mm
AET
987mm
Mean slope
0,6°
Water table
34cm
Forest
39%
Crops
55%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)