Ontologia

Province · zaf

Gauteng

South Africa

CwbTemperate, dry winter, warm summer(75 %)

Species observed

13 107

Observations

5 716 261

Area

18 178,3km²

Ecological tissue

Sample of 21 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 Gauteng : 21 espèces reliées par 15 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2).

Espèces affichées
21
Interactions affichées
15
Connectance
0.071
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

13 107 distinct species · 5 716 261 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 716 261 obs · 454 cellules
Obs. / cellule
≥ 176 814
25 736–176 813
6 738–25 735
2 455–6 737
< 2 455

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

Climate

Mean T°

16,7°C

Annual rain

688mm

Warmest m°

26,0°C

Coldest m°

3,5°C

Elevation: 1 480 m on average (min 949 m, max 1 849 m)

Bioclimatic detailsExpert
Annual mean temp.
16,7°C
Annual rain
688mm
Warmest month
26,0°C
Coldest month
3,5°C
Mean alt.
1 480m
Min
949m
Max
1 849m
Std. dev.
155m
Köppen-Geiger (dominant)
CwbTemperate, dry winter, warm summer(75 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,1

Org. C

13,6g/kg

Clay

23,2%

Sand

65,4%

Silt

11,5%

Average over 0-30 cm. Per-depth details in expert panel.

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
17,0g/kg
Clay
22,7%
Sand
65,4%
Silt
11,8%
5–15 cm
pH H₂O
6,1
Org. C
11,5g/kg
Clay
21,9%
Sand
66,6%
Silt
11,5%
15–30 cm
pH H₂O
6,1
Org. C
12,4g/kg
Clay
24,8%
Sand
64,2%
Silt
11,1%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest6.0%
Crops19.9%
Built-up4.7%
Bare soil2.7%
Other (grassland, water…)66.7%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology49 basins · 50 lakes · 66 rivers

Hydrology metrics for this exact territory

Stream length here

2 107,2km

Lake surface here

91,15km²

Basins crossed

49

Max stream order

6

Max drainage

49 685km²

Discharge in basins

172,9m³/s

Mean precip.

683mm/an

Mean T°

16,5°C

Moisture idx

-0,54

Mean runoff

28mm/an

Mean elev. (basins)

1 472m

Watersheds crossing here

40 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (66, ord ≥ 4)

54 more river segments

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

7hab/km²

Night light

5,0nW

Built-up

471,3%

Pesticides

36,3kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas66

IUCN Not Reported · 65IUCN IV · 1
Complete list

+ 6 protected areas (top 60 shown)

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations6