Ontologia

HydroBASINS lev08 watershed · #1081616230

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 3 administrative regions : Dr Kenneth Kaunda, Dr Ruth Segomotsi Mompati, Lejweleputswa

62% lakePfafstetter: 12797110

Sub-basin area

659,7km²

Upstream area

87 933,2km²

Discharge

98,02m³/s

Mean elev.

1 267m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Vaal River6 km²

▲ Receives from 3 basins

3 dept-equivalent regions (GADM L2)

8 intersecting protected areas

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

Species present

729 distinct species · 17 030 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 030 obs · 17 cellules
Obs. / cellule
≥ 7 793
3 512–7 792
297–3 511
196–296
< 196

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

Ecological tissue

Sample of 20 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 : 17 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
14
Connectance
0.067
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°

17,5°C

Annual rain

518mm

Moisture idx (CMI)

-0,68

Runoff

34mm/an

PET

1 640mm

AET

437mm

Mean slope

0,2°

Water table

192cm

Forest

0%

Crops

28%

Urban

0%

Protected

11%

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