HydroBASINS lev08 watershed · #7080455920
Bassin de Little White 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 2 administrative regions : Mellette, Todd
Sub-basin area
608,7km²
Upstream area
2 942,4km²
Discharge
1,88m³/s
Mean elev.
839m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Little White River637 km²
- Bassin de Little White River406 km²
2 dept-equivalent regions (GADM L2)
- Todd609.7 km²100.0% of basin
- 0.1 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
341 distinct species · 1 245 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 51 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 White River : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 132 interactions GloBI sur 4 types (connectance 10.0%, filtre Serrano α=0.2). 20 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°
8,4°C
Annual rain
481mm
Moisture idx (CMI)
-0,56
Runoff
38mm/an
PET
1 093mm
AET
414mm
Mean slope
3,0°
Water table
481cm
Forest
1%
Crops
18%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)