Ontologia

HydroBASINS lev08 watershed · #7080455920

Bassin de Little White 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 : Mellette, Todd

Pfafstetter: 74295825

Sub-basin area

608,7km²

Upstream area

2 942,4km²

Discharge

1,88m³/s

Mean elev.

839m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

2 dept-equivalent regions (GADM L2)

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

Species present

341 distinct species · 1 245 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 245 obs · 15 cellules
Obs. / cellule
≥ 339
208–338
85–207
42–84
< 42

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

Ecological tissue

Sample of 51 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 White River : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 132 interactions GloBI sur 4 types (connectance 10.0%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
52
Interactions affichées
132
Connectance
0.100
Patrimoniales
2
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°

8,4°C

Annual rain

481mm

Moisture idx (CMI)

-0,56

Runoff

38mm/an

PET

1 093mm

AET

414mm

Mean slope

3,0°

Water table

481cm

Forest

1%

Crops

18%

Urban

0%

Protected

0%

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