Ontologia

HydroBASINS lev08 watershed · #7080725070

Bassin de Tensas 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 : Catahoula, Tensas

Pfafstetter: 74222402

Sub-basin area

445km²

Upstream area

445,1km²

Discharge

9,5m³/s

Mean elev.

23m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tensas River314 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

258 distinct species · 2 457 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 457 obs · 12 cellules
Obs. / cellule
≥ 555
476–554
349–475
173–348
< 173

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

Ecological tissue

Sample of 34 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 Tensas River : 21 espèces reliées par 71 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
71
Connectance
0.127
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°

18,6°C

Annual rain

1 423mm

Moisture idx (CMI)

-0,01

Runoff

673mm/an

PET

1 439mm

AET

1 078mm

Mean slope

0,2°

Water table

10cm

Forest

9%

Crops

58%

Urban

0%

Protected

0%

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