Ontologia

Subdivision · ZAF

83

South Africa

CwbTemperate, dry winter, warm summer(100 %)

Species observed

2 275

Observations

277 330

Area

12km²

Ecological tissue

Sample of 19 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 83 : 19 espèces reliées par 14 interactions GloBI sur 3 types (connectance 8.2%, filtre Serrano α=0.2).

Espèces affichées
19
Interactions affichées
14
Connectance
0.082
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

2 275 distinct species · 277 330 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

277 330 obs · 1 cellules
Obs. / cellule
≥ 277 330
277 330–277 329
277 330–277 329
277 330–277 329
< 277 330

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

Climate

Mean T°

15,3°C

Annual rain

779mm

Warmest m°

24,4°C

Coldest m°

2,3°C

Elevation: 1 674 m on average (min 1 574 m, max 1 744 m)

Bioclimatic detailsExpert
Annual mean temp.
15,3°C
Annual rain
779mm
Warmest month
24,4°C
Coldest month
2,3°C
Mean alt.
1 674m
Min
1 574m
Max
1 744m
Std. dev.
44m
Köppen-Geiger (dominant)
CwbTemperate, dry winter, warm summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,9

Org. C

19,6g/kg

Clay

23,9%

Sand

62,7%

Silt

13,3%

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

Dominant lithology: mtGLiMaggregated to City of Johannesburg

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
23,1g/kg
Clay
23,0%
Sand
63,3%
Silt
13,6%
5–15 cm
pH H₂O
5,9
Org. C
17,5g/kg
Clay
22,7%
Sand
63,8%
Silt
13,5%
15–30 cm
pH H₂O
5,9
Org. C
18,2g/kg
Clay
26,1%
Sand
61,1%
Silt
12,8%

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

Land cover

Forest1.8%
Crops1.5%
Built-up22.3%
Bare soil0.4%
Other (grassland, water…)74.0%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,7km

Basins crossed

2

Max stream order

1

Max drainage

2 261km²

Discharge in basins

0,0m³/s

Mean precip.

714mm/an

Mean T°

16,5°C

Moisture idx

-0,51

Mean runoff

32mm/an

Mean elev. (basins)

1 533m

Watersheds crossing here

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

Human pressure

Pop. density

18hab/km²

Night light

15,6nW

Built-up

2 225,1%

Pesticides

29,8kg/km²

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