Ontologia

HydroBASINS lev08 watershed · #7080711420

Bassin de Ouachita 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 2 administrative regions : Ouachita, Union

9% lakePfafstetter: 74222730

Sub-basin area

94,7km²

Upstream area

34 998,3km²

Discharge

533,69m³/s

Mean elev.

30m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ouachita River1599 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • D 'Arbonne

    IUCN IV

    National Wildlife Refuge

    1.24 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

469 distinct species · 6 804 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 804 obs · 3 cellules
Obs. / cellule
≥ 5 240
5 240–5 239
5 240–5 239
973–5 239
< 973

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 41 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Ouachita River : 31 espèces reliées par 85 interactions GloBI sur 4 types (connectance 10.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
85
Connectance
0.104
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

17,9°C

Annual rain

1 320mm

Moisture idx (CMI)

-0,06

Runoff

565mm/an

PET

1 410mm

AET

1 033mm

Mean slope

0,6°

Water table

35cm

Forest

64%

Crops

10%

Urban

1%

Protected

1%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)