Ontologia

District Municipality · ZAF

Overberg

South Africa

BSkArid, steppe, cold(45 %)

Species observed

11 789

Observations

1 278 366

Area

12 229,8km²

Ecological tissue

Sample of 37 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 Overberg : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 5.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
36
Connectance
0.051
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

11 789 distinct species · 1 278 366 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 278 366 obs · 358 cellules
Obs. / cellule
≥ 37 981
8 219–37 980
2 398–8 218
1 242–2 397
< 1 242

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

Climate

Mean T°

16,2°C

Annual rain

586mm

Warmest m°

26,0°C

Coldest m°

6,9°C

Elevation: 274 m on average (min -34 m, max 1 398 m)

Bioclimatic detailsExpert
Annual mean temp.
16,2°C
Annual rain
586mm
Warmest month
26,0°C
Coldest month
6,9°C
Mean alt.
274m
Min
-34m
Max
1 398m
Std. dev.
248m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(45 %)Arid

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

Soil & lithology

pH H₂O

6,8

Org. C

29,3g/kg

Clay

20,9%

Sand

64,5%

Silt

14,6%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
43,1g/kg
Clay
17,7%
Sand
67,3%
Silt
15,0%
5–15 cm
pH H₂O
6,8
Org. C
26,6g/kg
Clay
21,6%
Sand
63,9%
Silt
14,5%
15–30 cm
pH H₂O
6,9
Org. C
18,2g/kg
Clay
23,3%
Sand
62,3%
Silt
14,4%

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

Land cover

Forest4.9%
Crops28.0%
Built-up0.2%
Bare soil5.0%
Other (grassland, water…)61.8%

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

Hydrology28 basins · 27 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

1 901,7km

Lake surface here

57,56km²

Basins crossed

28

Max stream order

5

Max drainage

12 511km²

Discharge in basins

118,5m³/s

Mean precip.

560mm/an

Mean T°

16,2°C

Moisture idx

-0,53

Max snow

1%

Mean runoff

127mm/an

Mean elev. (basins)

273m

Watersheds crossing here

19 more basins

Lakes (27, top by area)

18 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

21,2%

Pesticides

21,1kg/km²

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

Protected areas80

IUCN Not Reported · 75IUCN IV · 3IUCN Not Applicable · 1IUCN Ia · 1🌊 Marine · 17
Complete list

+ 20 protected areas (top 60 shown)

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

Sub-administrations4