Ontologia

District Municipality · ZAF

Siyanda

South Africa

BWhArid, desert, hot(92 %)

Species observed

4 609

Observations

461 910

Area

102 524,2km²

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 Siyanda : 13 espèces reliées par 25 interactions GloBI sur 2 types (connectance 13.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
25
Connectance
0.132
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

4 609 distinct species · 461 910 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

461 910 obs · 53 cellules
Obs. / cellule
≥ 48 332
28 218–48 331
6 858–28 217
3 519–6 857
< 3 519

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

Climate

Mean T°

20,1°C

Annual rain

210mm

Warmest m°

33,8°C

Coldest m°

4,9°C

Elevation: 967 m on average (min 418 m, max 1 796 m)

Bioclimatic detailsExpert
Annual mean temp.
20,1°C
Annual rain
210mm
Warmest month
33,8°C
Coldest month
4,9°C
Mean alt.
967m
Min
418m
Max
1 796m
Std. dev.
171m
Köppen-Geiger (dominant)
BWhArid, desert, hot(92 %)Arid

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

Soil & lithology

pH H₂O

7,9

Org. C

5,0g/kg

Clay

16,5%

Sand

71,5%

Silt

12,0%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
5,9g/kg
Clay
15,8%
Sand
71,9%
Silt
12,3%
5–15 cm
pH H₂O
7,9
Org. C
4,6g/kg
Clay
16,2%
Sand
71,8%
Silt
12,0%
15–30 cm
pH H₂O
8,0
Org. C
4,6g/kg
Clay
17,4%
Sand
70,8%
Silt
11,8%

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

Land cover

Forest1.8%
Crops0.3%
Built-up0.0%
Bare soil38.8%
Other (grassland, water…)59.0%

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

Hydrology202 basins · 45 lakes · 34 rivers

Hydrology metrics for this exact territory

Stream length here

4 125,7km

Lake surface here

212,70km²

Basins crossed

202

Max stream order

9

Max drainage

762 211km²

Discharge in basins

5 965,1m³/s

Mean precip.

220mm/an

Mean T°

19,1°C

Moisture idx

-0,87

Mean runoff

11mm/an

Mean elev. (basins)

966m

Watersheds crossing here

193 more basins

Lakes (45, top by area)

36 more lakes

Rivers / streams (34, ord ≥ 4)

22 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

2,9%

Pesticides

1,2kg/km²

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

Protected areas7

IUCN Not Reported · 6IUCN Ib · 1

Gemsbok

IUCN Ib

National Park · 1971

25 939 km²

Complete list

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

Sub-administrations6