Ontologia

Commune · ZAF

Hantam

South Africa

BWhArid, desert, hot(41 %)

Species observed

5 249

Observations

148 028

Area

36 127,9km²

Ecological tissue

Sample of 23 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 Hantam : 19 espèces reliées par 19 interactions GloBI sur 2 types (connectance 7.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
19
Connectance
0.075
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

5 249 distinct species · 148 028 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

148 028 obs · 807 cellules
Obs. / cellule
≥ 2 402
324–2 401
95–323
39–94
< 39

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

Climate

Mean T°

17,7°C

Annual rain

218mm

Warmest m°

32,2°C

Coldest m°

4,2°C

Elevation: 863 m on average (min 195 m, max 1 634 m)

Bioclimatic detailsExpert
Annual mean temp.
17,7°C
Annual rain
218mm
Warmest month
32,2°C
Coldest month
4,2°C
Mean alt.
863m
Min
195m
Max
1 634m
Std. dev.
234m
Köppen-Geiger (dominant)
BWhArid, desert, hot(41 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

9,9g/kg

Clay

18,5%

Sand

65,9%

Silt

15,6%

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

Dominant lithology: mtGLiMaggregated to Namakwa

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
10,3g/kg
Clay
16,6%
Sand
67,6%
Silt
15,7%
5–15 cm
pH H₂O
8,0
Org. C
9,0g/kg
Clay
18,1%
Sand
66,3%
Silt
15,7%
15–30 cm
pH H₂O
8,0
Org. C
10,4g/kg
Clay
20,8%
Sand
63,8%
Silt
15,3%

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

Land cover

Forest0.2%
Crops0.5%
Built-up0.0%
Bare soil53.2%
Other (grassland, water…)46.1%

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

Hydrology98 basins · 14 lakes · 55 rivers

Hydrology metrics for this exact territory

Stream length here

2 657,7km

Lake surface here

22,75km²

Basins crossed

98

Max stream order

7

Max drainage

64 244km²

Discharge in basins

151,1m³/s

Mean precip.

193mm/an

Mean T°

17,2°C

Moisture idx

-0,88

Mean runoff

31mm/an

Mean elev. (basins)

867m

Watersheds crossing here

89 more basins

Lakes (14, top by area)

5 more lakes

Rivers / streams (55, ord ≥ 4)

43 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

1,0%

Pesticides

5,0kg/km²

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

Protected areas16

IUCN Not Reported · 15IUCN Not Applicable · 1🌊 Marine · 1
Complete list

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