Ontologia

HydroBASINS lev08 watershed · #7080699720

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 : Ashley, Union

5% lakePfafstetter: 74222790

Sub-basin area

198,9km²

Upstream area

27 546,7km²

Discharge

415,71m³/s

Mean elev.

42m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ouachita River1158 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Felsenthal

    IUCN IV

    National Wildlife Refuge

    37.62 km² overlap

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

Species present

843 distinct species · 5 106 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 106 obs · 6 cellules
Obs. / cellule
≥ 3 055
3 055–3 054
1 327–3 054
336–1 326
< 336

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 : 28 espèces reliées par 124 interactions GloBI sur 4 types (connectance 13.7%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
124
Connectance
0.137
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°

16,9°C

Annual rain

1 384mm

Moisture idx (CMI)

-0,01

Runoff

536mm/an

PET

1 400mm

AET

1 046mm

Mean slope

0,7°

Water table

32cm

Forest

94%

Crops

3%

Urban

0%

Protected

20%

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