Ontologia

District Municipality · ZAF

West Rand

South Africa

CwbTemperate, dry winter, warm summer(77 %)

Species observed

4 222

Observations

552 308

Area

4 087,4km²

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 West Rand : 17 espèces reliées par 15 interactions GloBI sur 3 types (connectance 8.8%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
19
Interactions affichées
15
Connectance
0.088
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

4 222 distinct species · 552 308 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

552 308 obs · 103 cellules
Obs. / cellule
≥ 46 188
14 027–46 187
4 065–14 026
1 591–4 064
< 1 591

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

Climate

Mean T°

16,3°C

Annual rain

664mm

Warmest m°

25,7°C

Coldest m°

3,1°C

Elevation: 1 538 m on average (min 1 235 m, max 1 770 m)

Bioclimatic detailsExpert
Annual mean temp.
16,3°C
Annual rain
664mm
Warmest month
25,7°C
Coldest month
3,1°C
Mean alt.
1 538m
Min
1 235m
Max
1 770m
Std. dev.
94m
Köppen-Geiger (dominant)
CwbTemperate, dry winter, warm summer(77 %)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

14,0g/kg

Clay

23,2%

Sand

65,0%

Silt

11,7%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
16,9g/kg
Clay
22,9%
Sand
65,0%
Silt
12,1%
5–15 cm
pH H₂O
6,1
Org. C
11,2g/kg
Clay
22,1%
Sand
66,2%
Silt
11,7%
15–30 cm
pH H₂O
6,1
Org. C
14,0g/kg
Clay
24,7%
Sand
63,9%
Silt
11,4%

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

Land cover

Forest5.8%
Crops23.6%
Built-up1.6%
Bare soil2.9%
Other (grassland, water…)66.1%

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

Hydrology12 basins · 47 lakes · 9 rivers

Hydrology metrics for this exact territory

Stream length here

192,8km

Lake surface here

21,01km²

Basins crossed

12

Max stream order

4

Max drainage

3 965km²

Discharge in basins

4,1m³/s

Mean precip.

680mm/an

Mean T°

16,3°C

Moisture idx

-0,54

Mean runoff

24mm/an

Mean elev. (basins)

1 524m

Watersheds crossing here

3 more basins

Lakes (47, top by area)

38 more lakes

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

Human pressure

Pop. density

2hab/km²

Night light

1,9nW

Built-up

155,8%

Pesticides

37,8kg/km²

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

Protected areas6

IUCN Not Reported · 6

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

Sub-administrations4