HydroBASINS lev08 watershed · #7080710530
Bassin de Bayou D'Arbonne
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 : Lincoln, Ouachita, Union
Sub-basin area
490,8km²
Upstream area
4 399,7km²
Discharge
67,59m³/s
Mean elev.
54m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Bayou D'Arbonne1887 km²
- Bassin de Corney Bayou365 km²
3 dept-equivalent regions (GADM L2)
- Union364.9 km²74.4% of basin
- Lincoln123.6 km²25.2% of basin
- 2.1 km²0.4% of basin
3 intersecting protected areas
D 'Arbonne
IUCN IVNational Wildlife Refuge
36.77 km² overlap
D'arbonne Bayou
IUCN VState Wild or Scenic River
1.24 km² overlap
Old Lake D'arbonne
IUCN IIIState Park
0.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 436 distinct species · 67 021 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 Bayou D'Arbonne : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 3 types (connectance 10.3%, 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°
17,6°C
Annual rain
1 333mm
Moisture idx (CMI)
-0,06
Runoff
523mm/an
PET
1 413mm
AET
1 044mm
Mean slope
1,5°
Water table
80cm
Forest
96%
Crops
7%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)