HydroBASINS lev08 watershed · #7080721140
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 4 administrative regions : Claiborne, Madison, Tensas, Warren
Sub-basin area
613,9km²
Upstream area
2 915 605km²
Discharge
18 976,74m³/s
Mean elev.
42m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mississippi River2382 km²
- Bassin de Yazoo River125 km²
4 dept-equivalent regions (GADM L2)
- Warren407.3 km²66.4% of basin
- 95.3 km²15.5% of basin
- Madison92.8 km²15.1% of basin
- Claiborne18.1 km²3.0% of basin
13 intersecting protected areas
Us-Ms-92-24
IUCN Not AssignedConservation Easement
24.57 km² overlap
Reserve Program
18.70 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Madison, LA
IUCN Not AssignedConservation Easement
13.75 km² overlap
Us-La-108-26
IUCN Not AssignedConservation Easement
8.53 km² overlap
Us-Ms-92-36
IUCN Not AssignedConservation Easement
6.93 km² overlap
Us-La-108-11
IUCN Not AssignedConservation Easement
5.17 km² overlap
Reserve Program
4.93 km² overlap
Us-Ms-92-32
IUCN Not AssignedConservation Easement
4.54 km² overlap
Watershed Protection
2.25 km² overlap
4 more protected areassorted by overlap area
Us-Ms-92-30
IUCN Not AssignedConservation Easement
2.13 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not AssignedReserve Program
1.64 km² overlap
Reserve Program
0.34 km² overlap
Reserve Program
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 776 distinct species · 40 101 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 : 20 espèces reliées par 73 interactions GloBI sur 3 types (connectance 13.8%, 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°
18,1°C
Annual rain
1 411mm
Moisture idx (CMI)
0,00
Runoff
696mm/an
PET
1 414mm
AET
1 059mm
Mean slope
1,1°
Water table
60cm
Forest
84%
Crops
17%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)