HydroBASINS lev08 watershed · #7080689550
Bassin de Little 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 : Hempstead, Howard, Little River, Sevier
Sub-basin area
220,9km²
Upstream area
10 816,1km²
Discharge
148,66m³/s
Mean elev.
93m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Saline River1427 km²
- Bassin de Little River250 km²
4 dept-equivalent regions (GADM L2)
- HempsteadArkansas · United States135.9 km²61.5% of basin
- Little RiverArkansas · United States67.5 km²30.6% of basin
- HowardArkansas · United States17.3 km²7.8% of basin
- SevierArkansas · United States0.1 km²0.1% of basin
6 intersecting protected areas
Reserve Program
6.64 km² overlap
Nacatoch Ravines
IUCN Not AssignedNatural Area
5.47 km² overlap
Nacatoch Ravines Fee
IUCN VPrivate Conservation Land
3.51 km² overlap
Little River
IUCN VState Wildlife Management Area
2.28 km² overlap
Reserve Program
2.01 km² overlap
Nacatoch Ravines Fee
IUCN VPrivate Conservation Land
1.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 006 distinct species · 22 046 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Little River : 28 espèces reliées par 66 interactions GloBI sur 3 types (connectance 8.9%, 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°
17,3°C
Annual rain
1 265mm
Moisture idx (CMI)
-0,08
Runoff
438mm/an
PET
1 375mm
AET
1 038mm
Mean slope
1,0°
Water table
68cm
Forest
73%
Crops
18%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)