Ontologia

Constituency · NAM

Okahandja

Namibia

BShArid, steppe, hot(55 %)

Species observed

1 634

Observations

30 973

Area

5 877,3km²

Ecological tissue

Sample of 13 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 Okahandja : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 10 interactions GloBI sur 2 types (connectance 12.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
13
Interactions affichées
10
Connectance
0.128
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

1 634 distinct species · 30 973 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

30 973 obs · 121 cellules
Obs. / cellule
≥ 3 716
549–3 715
125–548
40–124
< 40

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

336mm

Warmest m°

32,3°C

Coldest m°

7,6°C

Elevation: 1 410 m on average (min 1 001 m, max 1 817 m)

Bioclimatic detailsExpert
Annual mean temp.
21,3°C
Annual rain
336mm
Warmest month
32,3°C
Coldest month
7,6°C
Mean alt.
1 410m
Min
1 001m
Max
1 817m
Std. dev.
116m
Köppen-Geiger (dominant)
BShArid, steppe, hot(55 %)Arid

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

Soil & lithology

pH H₂O

7,7

Org. C

4,8g/kg

Clay

14,3%

Sand

70,4%

Silt

15,3%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
5,3g/kg
Clay
13,3%
Sand
71,1%
Silt
15,6%
5–15 cm
pH H₂O
7,7
Org. C
4,4g/kg
Clay
13,7%
Sand
70,9%
Silt
15,4%
15–30 cm
pH H₂O
7,7
Org. C
4,6g/kg
Clay
15,7%
Sand
69,2%
Silt
15,1%

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

Land cover

Forest3.0%
Crops1.4%
Built-up0.1%
Bare soil9.5%
Other (grassland, water…)86.0%

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

Hydrology24 basins · 3 lakes · 51 rivers

Hydrology metrics for this exact territory

Stream length here

918,1km

Lake surface here

2,97km²

Basins crossed

24

Max stream order

5

Max drainage

11 469km²

Discharge in basins

21,4m³/s

Mean precip.

360mm/an

Mean T°

19,7°C

Moisture idx

-0,80

Mean runoff

19mm/an

Mean elev. (basins)

1 422m

Watersheds crossing here

15 more basins

Lakes (3, top by area)

Rivers / streams (51, ord ≥ 4)

39 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

5,9%

Pesticides

0,2kg/km²

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

Protected areas2

IUCN V · 1IUCN III · 1

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