Constituency · NAM
Kalahari
Namibia
Species observed
629
Observations
5 578
Area
12 228,3km²
Ecological tissue
Sample of 24 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).
Indicateurs du tissu écologique
Tissu écologique de Kalahari : 18 espèces reliées par 26 interactions GloBI sur 4 types (connectance 9.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
629 distinct species · 5 578 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
20,6°C
Annual rain
355mm
Warmest m°
31,8°C
Coldest m°
5,2°C
Elevation: 1 405 m on average (min 1 237 m, max 1 542 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
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
4,0g/kg
Clay
9,5%
Sand
81,3%
Silt
9,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology23 basins · 0 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
414,5km
Basins crossed
23
Max stream order
4
Max drainage
7 995km²
Discharge in basins
5,7m³/s
Mean precip.
354mm/an
Mean T°
19,5°C
Moisture idx
-0,80
Mean runoff
11mm/an
Mean elev. (basins)
1 395m
Watersheds crossing here
- Bassin de Rietfonteinsub-area2 439,5 km²overlap2251.25 km²18%
- Bassin de Chapman'ssub-area2 570 km²overlap1736.66 km²14%
- Bassin de Chapman'ssub-area1 643,7 km²overlap1617.81 km²13%
- Basin #61260sub-area1 086,8 km²overlap1055.79 km²9%
- Basin #61270sub-area1 066,7 km²overlap1028.52 km²8%
- Bassin de Amasibsub-area1 405 km²overlap979.56 km²8%
- Bassin de Chapman'ssub-area833,2 km²overlap630.98 km²5%
- Bassin de Xaraxabsub-area726,9 km²overlap610.28 km²5%
- Bassin de Nossobsub-area1 493 km²overlap389.31 km²3%
14 more basinssorted by overlap
- Bassin de Kwaraghassub-area441,1 km²overlap380.46 km²3%
- Bassin de Rietfonteinsub-area1 497,5 km²overlap276.74 km²2%
- Bassin de Black Nossobsub-area2 897,2 km²overlap219.42 km²2%
- Bassin de Black Nossobsub-area256,1 km²overlap218.28 km²2%
- Basin #66220sub-area1 014,9 km²overlap189.07 km²2%
- Bassin de Rietfonteinsub-area287,6 km²overlap148.73 km²1%
- Bassin de Rietfonteinsub-area1 277,9 km²overlap146.24 km²1%
- Bassin de Black Nossobsub-area409,1 km²overlap102.25 km²1%
- Basin #66230sub-area2 177,3 km²overlap95.90 km²1%
- Bassin de Rietfonteinsub-area270,5 km²overlap66.62 km²1%
- Bassin de Chapman'ssub-area275,4 km²overlap53.15 km²0%
- Bassin de Chapman'ssub-area195,9 km²overlap14.47 km²0%
- Bassin de Black Nossobsub-area342 km²overlap12.82 km²0%
- Bassin de Black Nossobsub-area135,3 km²overlap4.02 km²0%
Rivers / streams (9, ord ≥ 4)
- Chapman'sord 5len here126.14 km19%total676 km
- Amasibord 3len here110.13 km63%total176 km
- Kwaraghasord 3len here35.10 km87%total41 km
- Kasupiord 2len here34.73 km100%total35 km
- Xaraxabord 3len here27.08 km68%total40 km
- Otjumdaord 3len here26.26 km100%total26 km
- Rietfonteinord 4len here26.08 km4%total594 km
- Black Nossobord 5len here17.20 km2%total835 km
- Sandfonteinord 1len here11.78 km51%total23 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
0,9%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)