Ontologia

HydroBASINS lev08 watershed · #7080736350

Bassin de Big Creek

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 4 administrative regions : Avoyelles, Catahoula, La Salle, Rapides

30% lakePfafstetter: 74223102

Sub-basin area

583,2km²

Upstream area

583,2km²

Discharge

12,78m³/s

Mean elev.

24m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Black River33 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

411 distinct species · 2 338 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 338 obs · 12 cellules
Obs. / cellule
≥ 1 224
225–1 223
136–224
103–135
< 103

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

Ecological tissue

Sample of 44 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 Big Creek : 34 espèces reliées par 85 interactions GloBI sur 4 types (connectance 8.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
85
Connectance
0.082
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°

18,7°C

Annual rain

1 470mm

Moisture idx (CMI)

0,03

Runoff

691mm/an

PET

1 429mm

AET

1 107mm

Mean slope

0,5°

Water table

20cm

Forest

62%

Crops

19%

Urban

0%

Protected

0%

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