HydroBASINS lev08 watershed · #7080669090
Bassin de South Fork Ouachita 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 : Garland, Montgomery
Sub-basin area
437,7km²
Upstream area
437,7km²
Discharge
6,95m³/s
Mean elev.
255m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- MontgomeryArkansas · United States430.4 km²98.3% of basin
- GarlandArkansas · United States7.3 km²1.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 255 distinct species · 10 482 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 South Fork Ouachita River : 34 espèces reliées par 100 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 10 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°
15,1°C
Annual rain
1 406mm
Moisture idx (CMI)
0,04
Runoff
484mm/an
PET
1 348mm
AET
1 072mm
Mean slope
3,7°
Water table
200cm
Forest
90%
Crops
8%
Urban
0%
Protected
66%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)