Ontologia

HydroBASINS lev08 watershed · #1081618730

Bassin de Vaal 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 : Dr Ruth Segomotsi Mompati, Lejweleputswa

2% lakePfafstetter: 12795050

Sub-basin area

2 650km²

Upstream area

110 394,2km²

Discharge

114,37m³/s

Mean elev.

1 278m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Vaal River54 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

652 distinct species · 6 647 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 647 obs · 57 cellules
Obs. / cellule
≥ 2 443
263–2 442
70–262
37–69
< 37

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

Ecological tissue

Sample of 24 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 Vaal River : 22 espèces reliées par 19 interactions GloBI sur 3 types (connectance 6.9%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
19
Connectance
0.069
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°

17,4°C

Annual rain

484mm

Moisture idx (CMI)

-0,71

Runoff

28mm/an

PET

1 649mm

AET

408mm

Mean slope

0,3°

Water table

354cm

Forest

0%

Crops

36%

Urban

0%

Protected

1%

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