HydroBASINS lev08 watershed · #7080679030
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 3 administrative regions : Arkansas, Jefferson, Lincoln
Sub-basin area
267,2km²
Upstream area
404 844,1km²
Discharge
1 256,07m³/s
Mean elev.
58m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arkansas River1169 km²
- Bassin de Old Channel Plum Bayou535 km²
3 dept-equivalent regions (GADM L2)
- JeffersonArkansas · United States226.0 km²84.6% of basin
- LincolnArkansas · United States39.1 km²14.6% of basin
- ArkansasArkansas · United States2.0 km²0.7% of basin
3 intersecting protected areas
Reserve Program
0.25 km² overlap
Reserve Program
0.23 km² overlap
Bayou Meto
IUCN VState Wildlife Management Area
0.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
446 distinct species · 2 940 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 : 29 espèces reliées par 104 interactions GloBI sur 4 types (connectance 14.0%, 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°
17,0°C
Annual rain
1 267mm
Moisture idx (CMI)
-0,05
Runoff
566mm/an
PET
1 331mm
AET
982mm
Mean slope
0,1°
Water table
7cm
Forest
14%
Crops
61%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)