HydroBASINS lev08 watershed · #7080679090
Bassin de Arkansas 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 5 administrative regions : Arkansas, Jefferson, Lincoln, Lonoke, Pulaski
Sub-basin area
778km²
Upstream area
778,2km²
Discharge
12,65m³/s
Mean elev.
65m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- LonokeArkansas · United States350.9 km²45.1% of basin
- JeffersonArkansas · United States348.0 km²44.7% of basin
- ArkansasArkansas · United States66.6 km²8.6% of basin
- PulaskiArkansas · United States9.9 km²1.3% of basin
- LincolnArkansas · United States2.4 km²0.3% of basin
2 intersecting protected areas
Bayou Meto
IUCN VState Wildlife Management Area
77.21 km² overlap
Reserve Program
0.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
400 distinct species · 10 400 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Arkansas River : 27 espèces reliées par 72 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 9 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°
16,8°C
Annual rain
1 258mm
Moisture idx (CMI)
-0,04
Runoff
514mm/an
PET
1 308mm
AET
977mm
Mean slope
0,1°
Water table
8cm
Forest
23%
Crops
58%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)