Ontologia

HydroBASINS lev08 watershed · #7080732390

Bassin de Flagon 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 3 administrative regions : Grant, La Salle, Rapides

20% lakePfafstetter: 74222203

Sub-basin area

1 107,1km²

Upstream area

6 615,7km²

Discharge

120,97m³/s

Mean elev.

46m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Hibbs Bayou331 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Us-La-42-10

    IUCN Not Assigned

    Conservation Easement

    12.92 km² overlap

  • Catahoula Lake

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    7.87 km² overlap

  • Little River

    IUCN V

    State Wild or Scenic River

    5.32 km² overlap

  • Big Creek

    IUCN V

    State Wild or Scenic River

    0.07 km² overlap

  • Trout Creek

    IUCN V

    State Wild or Scenic River

    0.02 km² overlap

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

Species present

1 755 distinct species · 23 415 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

23 415 obs · 31 cellules
Obs. / cellule
≥ 6 578
1 830–6 577
726–1 829
317–725
< 317

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 Flagon Bayou : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
106
Connectance
0.117
Patrimoniales
1
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°

18,5°C

Annual rain

1 446mm

Moisture idx (CMI)

0,01

Runoff

641mm/an

PET

1 431mm

AET

1 096mm

Mean slope

1,1°

Water table

53cm

Forest

94%

Crops

3%

Urban

0%

Protected

25%

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