Ontologia

Commune · ZAF

Polokwane

South Africa

BShArid, steppe, hot(59 %)

Species observed

3 834

Observations

254 620

Area

3 766km²

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 Polokwane : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 3 types (connectance 8.4%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
16
Connectance
0.084
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

3 834 distinct species · 254 620 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

254 620 obs · 93 cellules
Obs. / cellule
≥ 39 274
7 134–39 273
1 435–7 133
333–1 434
< 333

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

Climate

Mean T°

18,0°C

Annual rain

549mm

Warmest m°

26,9°C

Coldest m°

6,0°C

Elevation: 1 312 m on average (min 1 060 m, max 1 853 m)

Bioclimatic detailsExpert
Annual mean temp.
18,0°C
Annual rain
549mm
Warmest month
26,9°C
Coldest month
6,0°C
Mean alt.
1 312m
Min
1 060m
Max
1 853m
Std. dev.
107m
Köppen-Geiger (dominant)
BShArid, steppe, hot(59 %)Arid

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

Soil & lithology

pH H₂O

6,4

Org. C

12,0g/kg

Clay

22,0%

Sand

62,7%

Silt

15,2%

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

Dominant lithology: mtGLiMaggregated to Capricorn

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
15,8g/kg
Clay
20,6%
Sand
63,8%
Silt
15,6%
5–15 cm
pH H₂O
6,3
Org. C
10,9g/kg
Clay
20,3%
Sand
64,3%
Silt
15,4%
15–30 cm
pH H₂O
6,4
Org. C
9,3g/kg
Clay
25,2%
Sand
60,2%
Silt
14,7%

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

Land cover

Forest8.3%
Crops17.0%
Built-up2.1%
Bare soil2.6%
Other (grassland, water…)70.1%

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

Hydrology14 basins · 5 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

80,1km

Lake surface here

3,68km²

Basins crossed

14

Max stream order

4

Max drainage

31 529km²

Discharge in basins

8,3m³/s

Mean precip.

689mm/an

Mean T°

17,5°C

Moisture idx

-0,52

Mean runoff

40mm/an

Mean elev. (basins)

1 220m

Watersheds crossing here

5 more basins

Lakes (5, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

1,4nW

Built-up

210,5%

Pesticides

38,6kg/km²

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

Protected areas8

IUCN Not Reported · 8
Complete list

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