HydroBASINS lev08 watershed · #7080683030
Bassin de Rolling Fork 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 : Little River, McCurtain, Polk, Sevier
Sub-basin area
974,3km²
Upstream area
974,3km²
Discharge
14,42m³/s
Mean elev.
213m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- SevierArkansas · United States474.4 km²48.7% of basin
- McCurtainOklahoma · United States294.2 km²30.2% of basin
- PolkArkansas · United States201.8 km²20.7% of basin
- Little RiverArkansas · United States3.7 km²0.4% of basin
3 intersecting protected areas
Pond Creek
IUCN IVNational Wildlife Refuge
1.88 km² overlap
Reserve Program
1.11 km² overlap
Fernwood Seep
IUCN VNatural Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 057 distinct species · 6 205 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Rolling Fork Little River : 36 espèces reliées par 77 interactions GloBI sur 5 types (connectance 7.1%, 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°
15,9°C
Annual rain
1 347mm
Moisture idx (CMI)
-0,01
Runoff
466mm/an
PET
1 368mm
AET
1 070mm
Mean slope
2,5°
Water table
149cm
Forest
88%
Crops
9%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)