Ontologia

Commune · ZAF

Siyancuma

South Africa

BWhArid, desert, hot(51 %)

Species observed

2 411

Observations

115 801

Area

16 752,7km²

Ecological tissue

Sample of 11 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 Siyancuma : 7 espèces reliées par 11 interactions GloBI sur 2 types (connectance 20.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
11
Interactions affichées
11
Connectance
0.200
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

2 411 distinct species · 115 801 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

115 801 obs · 371 cellules
Obs. / cellule
≥ 8 916
386–8 915
100–385
38–99
< 38

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

Climate

Mean T°

18,4°C

Annual rain

326mm

Warmest m°

32,4°C

Coldest m°

3,7°C

Elevation: 1 168 m on average (min 863 m, max 1 599 m)

Bioclimatic detailsExpert
Annual mean temp.
18,4°C
Annual rain
326mm
Warmest month
32,4°C
Coldest month
3,7°C
Mean alt.
1 168m
Min
863m
Max
1 599m
Std. dev.
124m
Köppen-Geiger (dominant)
BWhArid, desert, hot(51 %)Arid

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

Soil & lithology

pH H₂O

7,5

Org. C

6,6g/kg

Clay

16,9%

Sand

69,2%

Silt

13,9%

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

Dominant lithology: vbGLiMaggregated to Pixley ka Seme

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,4
Org. C
8,4g/kg
Clay
16,6%
Sand
69,4%
Silt
14,0%
5–15 cm
pH H₂O
7,5
Org. C
5,9g/kg
Clay
16,0%
Sand
69,9%
Silt
14,1%
15–30 cm
pH H₂O
7,5
Org. C
5,6g/kg
Clay
18,2%
Sand
68,2%
Silt
13,7%

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

Land cover

Forest2.7%
Crops4.0%
Built-up0.0%
Bare soil9.5%
Other (grassland, water…)83.8%

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

Hydrology51 basins · 13 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

732,2km

Lake surface here

7,81km²

Basins crossed

51

Max stream order

7

Max drainage

334 922km²

Discharge in basins

1 640,8m³/s

Mean precip.

332mm/an

Mean T°

17,8°C

Moisture idx

-0,80

Mean runoff

19mm/an

Mean elev. (basins)

1 179m

Watersheds crossing here

42 more basins

Lakes (13, top by area)

4 more lakes

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

3,0%

Pesticides

3,4kg/km²

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

Protected areas6

IUCN Not Reported · 6

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