Ontologia

Commune · ZAF

Mier

South Africa

BWhArid, desert, hot(100 %)

Species observed

1 628

Observations

146 066

Area

22 468,5km²

Ecological tissue

Sample of 29 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 Mier : 22 espèces reliées par 33 interactions GloBI sur 3 types (connectance 8.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
33
Connectance
0.081
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

1 628 distinct species · 146 066 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

146 066 obs · 469 cellules
Obs. / cellule
≥ 5 891
738–5 890
109–737
36–108
< 36

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

Climate

Mean T°

21,3°C

Annual rain

193mm

Warmest m°

34,6°C

Coldest m°

5,3°C

Elevation: 909 m on average (min 767 m, max 1 068 m)

Bioclimatic detailsExpert
Annual mean temp.
21,3°C
Annual rain
193mm
Warmest month
34,6°C
Coldest month
5,3°C
Mean alt.
909m
Min
767m
Max
1 068m
Std. dev.
64m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid

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

Soil & lithology

pH H₂O

8,3

Org. C

4,7g/kg

Clay

15,2%

Sand

69,7%

Silt

15,1%

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

Dominant lithology: mtGLiMaggregated to Siyanda

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,3
Org. C
5,3g/kg
Clay
14,7%
Sand
70,1%
Silt
15,3%
5–15 cm
pH H₂O
8,3
Org. C
4,3g/kg
Clay
14,6%
Sand
70,3%
Silt
15,1%
15–30 cm
pH H₂O
8,3
Org. C
4,4g/kg
Clay
16,3%
Sand
68,7%
Silt
14,9%

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

Land cover

Forest2.1%
Crops0.0%
Built-up0.0%
Bare soil33.9%
Other (grassland, water…)64.0%

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

Hydrology58 basins · 18 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

1 098,5km

Lake surface here

172,00km²

Basins crossed

58

Max stream order

8

Max drainage

312 175km²

Discharge in basins

258,2m³/s

Mean precip.

201mm/an

Mean T°

19,9°C

Moisture idx

-0,89

Mean runoff

3mm/an

Mean elev. (basins)

922m

Watersheds crossing here

49 more basins

Lakes (18, top by area)

9 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

0,6%

Pesticides

0,1kg/km²

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

Protected areas2

IUCN Ib · 1IUCN Not Reported · 1

Gemsbok

IUCN Ib

National Park · 1971

25 939 km²

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