Ontologia

Province · zaf

North West

South Africa

BShArid, steppe, hot(57 %)

Species observed

10 412

Observations

2 540 831

Area

104 881,7km²

Ecological tissue

Sample of 20 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 North West : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
14
Connectance
0.074
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

10 412 distinct species · 2 540 831 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 540 831 obs · 57 cellules
Obs. / cellule
≥ 318 147
190 160–318 146
22 843–190 159
11 562–22 842
< 11 562

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

18,5°C

Annual rain

520mm

Warmest m°

29,6°C

Coldest m°

4,0°C

Elevation: 1 262 m on average (min 922 m, max 1 750 m)

Bioclimatic detailsExpert
Annual mean temp.
18,5°C
Annual rain
520mm
Warmest month
29,6°C
Coldest month
4,0°C
Mean alt.
1 262m
Min
922m
Max
1 750m
Std. dev.
159m
Köppen-Geiger (dominant)
BShArid, steppe, hot(57 %)Arid

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

Soil & lithology

pH H₂O

6,7

Org. C

7,9g/kg

Clay

20,6%

Sand

68,5%

Silt

10,9%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
10,6g/kg
Clay
19,7%
Sand
69,1%
Silt
11,2%
5–15 cm
pH H₂O
6,6
Org. C
6,5g/kg
Clay
18,9%
Sand
70,1%
Silt
11,1%
15–30 cm
pH H₂O
6,7
Org. C
6,6g/kg
Clay
23,2%
Sand
66,3%
Silt
10,4%

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

Land cover

Forest7.5%
Crops23.6%
Built-up0.4%
Bare soil2.8%
Other (grassland, water…)65.8%

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

Hydrology193 basins · 50 lakes · 67 rivers

Hydrology metrics for this exact territory

Stream length here

4 472,6km

Lake surface here

249,50km²

Basins crossed

193

Max stream order

7

Max drainage

112 971km²

Discharge in basins

1 103,8m³/s

Mean precip.

522mm/an

Mean T°

18,1°C

Moisture idx

-0,68

Mean runoff

17mm/an

Mean elev. (basins)

1 266m

Watersheds crossing here

184 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (67, ord ≥ 4)

55 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

41,1%

Pesticides

24,9kg/km²

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

Protected areas100

IUCN Not Reported · 97IUCN IV · 2IUCN Not Applicable · 1

Vredefort Dome

IUCN Not Applicable

World Heritage Site (natural or mixed) · 2005

314 km²

Complete list

+ 40 protected areas (top 60 shown)

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

Sub-administrations4