Rivière· 323 segments
Ouachita River
Crosses 18 administrative regions : Ashley, Bradley, Caldwell, Calhoun, Catahoula +11
Total length
869km
Max discharge
797,4m³/s
Max Strahler
6
Segments matched
323
River geography18 admin regions · 0 communes
18 administrative regions crossed (GADM L2)
- OuachitaLouisiana · United States145.4 kmin this dpt
- OuachitaArkansas · United States124.0 kmin this dpt
- GarlandArkansas · United States117.7 kmin this dpt
- MontgomeryArkansas · United States117.3 kmin this dpt
- Hot SpringArkansas · United States107.0 kmin this dpt
- CatahoulaLouisiana · United States99.6 kmin this dpt
- PolkArkansas · United States97.5 kmin this dpt
- CalhounArkansas · United States93.6 kmin this dpt
- CaldwellLouisiana · United States91.0 kmin this dpt
- UnionArkansas · United States83.2 kmin this dpt
- ClarkArkansas · United States70.5 kmin this dpt
- AshleyArkansas · United States43.5 kmin this dpt
- BradleyArkansas · United States33.1 kmin this dpt
- UnionLouisiana · United States30.4 kmin this dpt
- MorehouseLouisiana · United States25.0 kmin this dpt
- DallasArkansas · United States16.7 kmin this dpt
- FranklinLouisiana · United States0.7 kmin this dpt
- ConcordiaLouisiana · United States0.2 kmin this dpt
25 intersecting protected areas
Ouachita
IUCN IVNational Wildlife Refuge
Felsenthal
IUCN IVNational Wildlife Refuge
Upper Ouachita
IUCN IVNational Wildlife Refuge
Reserve Program
D 'Arbonne
IUCN IVNational Wildlife Refuge
Moro Big Pine Natural Area-Wildlife Man
IUCN Not AssignedNatural Area
Reserve Program
Reserve Program
Reserve Program
16 more protected areassorted by area
State Wildlife Management Area
Conservation Easement
Reserve Program
Bayou D'loutre
IUCN VState Wild or Scenic River
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Catahoula, LA
IUCN VConservation Easement
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Concordia, LA
IUCN Not AssignedConservation Easement
Us-La-108-4
IUCN Not AssignedConservation Easement
Us-La-42-7
IUCN Not AssignedConservation Easement
Ouachita River
IUCN VState Wild or Scenic River
Private Conservation Land
US-LA-108-5 Wetlands
IUCN Not AssignedReserve Program
D'arbonne Bayou
IUCN VState Wild or Scenic River
Reserve Program
Electric Island Fee
IUCN VPrivate Conservation Land
Coffee Prairie
IUCN VNatural Area
Big Fork Creek
IUCN VNatural Area
1 page = 1 named river (aggregation of 323 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
54 distinct species · 76 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Ouachita River : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 2 types (connectance 9.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
869km
Max discharge
797,4m³/s
Max Strahler
6
Segments matched
323
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.