HydroBASINS lev08 watershed · #7080685670
Bassin de Little Missouri 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 : Clark, Nevada, Pike
Sub-basin area
359,7km²
Upstream area
3 021,1km²
Discharge
49,37m³/s
Mean elev.
86m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Little Missouri River2015 km²
- Bassin de Antoine River647 km²
3 dept-equivalent regions (GADM L2)
- ClarkArkansas · United States181.7 km²50.5% of basin
- NevadaArkansas · United States177.7 km²49.4% of basin
- PikeArkansas · United States0.1 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
411 distinct species · 1 368 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Missouri River : 24 espèces reliées par 119 interactions GloBI sur 5 types (connectance 15.3%, filtre Serrano α=0.2). 16 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°
16,6°C
Annual rain
1 356mm
Moisture idx (CMI)
-0,02
Runoff
470mm/an
PET
1 387mm
AET
1 061mm
Mean slope
1,0°
Water table
50cm
Forest
87%
Crops
13%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)