Ontologia

HydroBASINS lev08 watershed · #1081624750

Bassin de Groot-vetrivier

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 : Lejweleputswa, Mangaung, Thabo Mofutsanyane

2% lakePfafstetter: 12796066

Sub-basin area

2 245,4km²

Upstream area

2 245,6km²

Discharge

0,97m³/s

Mean elev.

1 481m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Vetrivier468 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

748 distinct species · 15 071 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

15 071 obs · 45 cellules
Obs. / cellule
≥ 6 123
530–6 122
176–529
113–175
< 113

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

Ecological tissue

Sample of 29 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 Groot-vetrivier : 21 espèces reliées par 27 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
27
Connectance
0.067
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°

15,4°C

Annual rain

621mm

Moisture idx (CMI)

-0,59

Runoff

15mm/an

PET

1 510mm

AET

526mm

Mean slope

1,9°

Water table

378cm

Forest

0%

Crops

10%

Urban

0%

Protected

0%

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