Ontologia

HydroBASINS lev08 watershed · #1081596570

Bassin de Olifants 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 1 administrative regions : Nkangala

18% lakePfafstetter: 12440970

Sub-basin area

1 312,2km²

Upstream area

4 112,7km²

Discharge

2,26m³/s

Mean elev.

1 554m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Olifants River612 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 881 distinct species · 44 193 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

44 193 obs · 33 cellules
Obs. / cellule
≥ 13 090
2 953–13 089
1 216–2 952
550–1 215
< 550

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 Olifants River : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 5.3%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
23
Connectance
0.053
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°

15,5°C

Annual rain

692mm

Moisture idx (CMI)

-0,53

Runoff

26mm/an

PET

1 484mm

AET

585mm

Mean slope

2,0°

Water table

389cm

Forest

0%

Crops

40%

Urban

4%

Protected

4%

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