Ontologia

HydroBASINS lev08 watershed · #7080690110

Bassin de Walnut Bayou

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 : Little River, McCurtain

3% lakePfafstetter: 74225012

Sub-basin area

333,4km²

Upstream area

333,4km²

Discharge

4,98m³/s

Mean elev.

111m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Red River755 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

560 distinct species · 2 944 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 944 obs · 9 cellules
Obs. / cellule
≥ 1 002
1 002–1 001
466–1 001
220–465
< 220

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

Ecological tissue

Sample of 45 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 Walnut Bayou : 32 espèces reliées par 96 interactions GloBI sur 4 types (connectance 9.3%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
96
Connectance
0.093
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°

17,0°C

Annual rain

1 258mm

Moisture idx (CMI)

-0,09

Runoff

471mm/an

PET

1 386mm

AET

1 036mm

Mean slope

0,7°

Water table

34cm

Forest

46%

Crops

27%

Urban

0%

Protected

0%

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