Ontologia

HydroBASINS lev08 watershed · #1081587540

Bassin de Elandsriver

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 : Nkangala, Sekhukhune, Waterberg

Pfafstetter: 12440803

Sub-basin area

864,1km²

Upstream area

4 956,8km²

Discharge

2,86m³/s

Mean elev.

976m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Elandsriver163 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

569 distinct species · 4 953 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 953 obs · 20 cellules
Obs. / cellule
≥ 1 479
498–1 478
335–497
239–334
< 239

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

Ecological tissue

Sample of 22 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 Elandsriver : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 21 interactions GloBI sur 3 types (connectance 8.3%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
21
Connectance
0.083
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°

19,5°C

Annual rain

576mm

Moisture idx (CMI)

-0,66

Runoff

14mm/an

PET

1 703mm

AET

486mm

Mean slope

1,3°

Water table

439cm

Forest

16%

Crops

11%

Urban

13%

Protected

1%

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