Ontologia

HydroBASINS lev08 watershed · #7080683020

Bassin de Little 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 3 administrative regions : Little River, McCurtain, Sevier

Pfafstetter: 74224070

Sub-basin area

152,6km²

Upstream area

5 969,8km²

Discharge

78,46m³/s

Mean elev.

115m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Little River683 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Little River

    IUCN IV

    National Wildlife Refuge

    10.85 km² overlap

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

Species present

306 distinct species · 816 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

816 obs · 4 cellules
Obs. / cellule
≥ 382
382–381
256–381
256–255
< 256

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 Little River : 35 espèces reliées par 98 interactions GloBI sur 4 types (connectance 9.5%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
98
Connectance
0.095
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°

16,6°C

Annual rain

1 290mm

Moisture idx (CMI)

-0,08

Runoff

469mm/an

PET

1 396mm

AET

1 055mm

Mean slope

1,1°

Water table

57cm

Forest

68%

Crops

18%

Urban

0%

Protected

6%

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