HydroBASINS lev08 watershed · #7080647770
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 3 administrative regions : Dyer, Lauderdale, Mississippi
Sub-basin area
798,4km²
Upstream area
2 361 965km²
Discharge
15 086,76m³/s
Mean elev.
75m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- Lauderdale460.6 km²57.7% of basin
- MississippiArkansas · United States337.6 km²42.3% of basin
- 0.3 km²0.0% of basin
11 intersecting protected areas
John Tully
IUCN VWildlife Management Area
53.75 km² overlap
Chickasaw
IUCN IVNational Wildlife Refuge
53.20 km² overlap
Wildlife Management Area
32.38 km² overlap
Sunk Lake Designated
IUCN VState Natural Area
7.58 km² overlap
Lower Hatchie
IUCN IVNational Wildlife Refuge
5.76 km² overlap
Reserve Program
5.70 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Mississippi, AR
IUCN VConservation Easement
2.92 km² overlap
Reserve Program
0.96 km² overlap
Conservation Easement
0.66 km² overlap
2 more protected areassorted by overlap area
Reserve Program
0.63 km² overlap
Reserve Program
0.47 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
799 distinct species · 28 574 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 : 17 espèces reliées par 71 interactions GloBI sur 3 types (connectance 15.3%, filtre Serrano α=0.2). 14 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°
15,5°C
Annual rain
1 274mm
Moisture idx (CMI)
0,02
Runoff
682mm/an
PET
1 242mm
AET
947mm
Mean slope
0,5°
Water table
30cm
Forest
32%
Crops
68%
Urban
0%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)