HydroBASINS lev08 watershed · #7080637180
Bassin de West Ditch
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 : Dunklin, Mississippi, New Madrid, Pemiscot, Stoddard
Sub-basin area
1 395,5km²
Upstream area
4 441,4km²
Discharge
88m³/s
Mean elev.
84m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Little River1115 km²
- Bassin de Upper Castor River876 km²
5 dept-equivalent regions (GADM L2)
- 598.0 km²42.8% of basin
- 410.5 km²29.4% of basin
- 291.4 km²20.9% of basin
- 93.6 km²6.7% of basin
- MississippiArkansas · United States2.2 km²0.2% of basin
14 intersecting protected areas
Hornersville Swamp
IUCN VConservation Area
7.68 km² overlap
Reserve Program
6.28 km² overlap
Little River
IUCN VConservation Area
4.27 km² overlap
Holly Ridge
IUCN VConservation Area
3.38 km² overlap
Reserve Program
1.02 km² overlap
Watershed Protection
0.67 km² overlap
Morris
IUCN IIIState Park
0.65 km² overlap
Reserve Program
0.60 km² overlap
Holly Ridge
IUCN VNatural Area
0.33 km² overlap
5 more protected areassorted by overlap area
Twin Borrow Pits
IUCN VConservation Area
0.30 km² overlap
Reserve Program
0.22 km² overlap
Big Lake
IUCN IVNational Wildlife Refuge
0.15 km² overlap
Beech Springs
IUCN VNatural Area
0.13 km² overlap
Reserve Program
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
854 distinct species · 41 108 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 West Ditch : 26 espèces reliées par 63 interactions GloBI sur 3 types (connectance 11.2%, filtre Serrano α=0.2). 8 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 230mm
Moisture idx (CMI)
-0,01
Runoff
644mm/an
PET
1 241mm
AET
929mm
Mean slope
0,2°
Water table
15cm
Forest
12%
Crops
81%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)