HydroBASINS lev08 watershed · #7080646800
Bassin de Little River Floodway
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 : Craighead, Mississippi, Poinsett
Sub-basin area
155,2km²
Upstream area
6 105,6km²
Discharge
122,8m³/s
Mean elev.
67m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- PoinsettArkansas · United States108.9 km²70.1% of basin
- CraigheadArkansas · United States43.2 km²27.8% of basin
- MississippiArkansas · United States3.2 km²2.0% of basin
5 intersecting protected areas
State Wildlife Management Area
16.21 km² overlap
Reserve Program
9.30 km² overlap
Reserve Program
1.75 km² overlap
Us-Ar-75-26
IUCN Not AssignedConservation Easement
1.28 km² overlap
Reserve Program
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
896 distinct species · 3 180 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 Floodway : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 5 types (connectance 9.1%, filtre Serrano α=0.2). 12 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°
15,7°C
Annual rain
1 245mm
Moisture idx (CMI)
-0,01
Runoff
654mm/an
PET
1 256mm
AET
941mm
Mean slope
0,2°
Water table
11cm
Forest
5%
Crops
72%
Urban
0%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)