Ontologia

HydroBASINS lev08 watershed · #1081593040

Bassin de Olifants

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 : Nkangala, Sekhukhune

Pfafstetter: 12440937

Sub-basin area

76,3km²

Upstream area

12 363,8km²

Discharge

7,93m³/s

Mean elev.

1 072m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Olifants286 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

1 369 distinct species · 34 232 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

34 232 obs · 2 cellules
Obs. / cellule
≥ 29 542
29 542–29 541
29 542–29 541
29 542–29 541
< 29 542

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

Ecological tissue

Sample of 13 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 Olifants : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 9 interactions GloBI sur 3 types (connectance 9.9%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
9
Connectance
0.099
Patrimoniales
1
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°

19,8°C

Annual rain

649mm

Moisture idx (CMI)

-0,62

Runoff

20mm/an

PET

1 728mm

AET

548mm

Mean slope

6,3°

Water table

639cm

Forest

25%

Crops

10%

Urban

0%

Protected

45%

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