Ontologia

HydroBASINS lev08 watershed · #1081590790

Bassin de Pienaarsrivier

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 : Bojanala, Waterberg

Pfafstetter: 12499066

Sub-basin area

970,4km²

Upstream area

970,4km²

Discharge

0,43m³/s

Mean elev.

1 163m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Moretele321 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

7 intersecting protected areas

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

Species present

1 580 distinct species · 119 930 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

119 930 obs · 23 cellules
Obs. / cellule
≥ 59 747
6 462–59 746
1 698–6 461
753–1 697
< 753

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

Ecological tissue

Sample of 17 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 Pienaarsrivier : 14 espèces reliées par 15 interactions GloBI sur 3 types (connectance 9.8%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
15
Connectance
0.098
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°

18,8°C

Annual rain

618mm

Moisture idx (CMI)

-0,63

Runoff

14mm/an

PET

1 655mm

AET

522mm

Mean slope

1,9°

Water table

515cm

Forest

13%

Crops

24%

Urban

3%

Protected

6%

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