Ontologia

Commune · AGO

Tombua

Angola

BWhArid, desert, hot(97 %)

Species observed

962

Observations

5 030

Area

17 282,2km²

Ecological tissue

Sample of 19 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 Tombua : 16 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 2 types (connectance 9.9%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
19
Interactions affichées
17
Connectance
0.099
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

962 distinct species · 5 030 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 030 obs · 187 cellules
Obs. / cellule
≥ 910
50–909
10–49
4–9
< 4

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

Climate

Mean T°

22,9°C

Annual rain

167mm

Warmest m°

32,5°C

Coldest m°

13,7°C

Elevation: 479 m on average (min -77 m, max 1 901 m)

Bioclimatic detailsExpert
Annual mean temp.
22,9°C
Annual rain
167mm
Warmest month
32,5°C
Coldest month
13,7°C
Mean alt.
479m
Min
-77m
Max
1 901m
Std. dev.
340m
Köppen-Geiger (dominant)
BWhArid, desert, hot(97 %)Arid

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

Soil & lithology

pH H₂O

8,2

Org. C

7,2g/kg

Clay

10,9%

Sand

75,6%

Silt

13,6%

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

Dominant lithology: mtGLiMaggregated to Tombwa

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,2
Org. C
7,8g/kg
Clay
10,1%
Sand
76,2%
Silt
13,7%
5–15 cm
pH H₂O
8,2
Org. C
6,2g/kg
Clay
11,0%
Sand
75,4%
Silt
13,6%
15–30 cm
pH H₂O
8,2
Org. C
7,6g/kg
Clay
11,5%
Sand
75,2%
Silt
13,3%

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

Land cover

Forest1.5%
Crops0.1%
Built-up0.0%
Bare soil60.5%
Other (grassland, water…)37.9%

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

Hydrology32 basins · 2 lakes · 29 rivers

Hydrology metrics for this exact territory

Stream length here

1 580,3km

Lake surface here

0,91km²

Basins crossed

32

Max stream order

7

Max drainage

108 943km²

Discharge in basins

651,0m³/s

Mean precip.

121mm/an

Mean T°

19,9°C

Moisture idx

-0,91

Mean runoff

16mm/an

Mean elev. (basins)

493m

Watersheds crossing here

23 more basins

Lakes (2, top by area)

Rivers / streams (29, ord ≥ 4)

17 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

0,8%

Pesticides

0,0kg/km²

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

Protected areas8

IUCN Not Reported · 5IUCN II · 2IUCN IV · 1🌊 Marine · 3

Marienfluss

IUCN Not Reported

Communal Conservancy · 2001

3 035 km²

Marienfluss

IUCN Not Reported

Community Forest · 2013

3 031 km²

Epupa

IUCN Not Reported

Communal Conservancy · 2012

2 912 km²

Complete list

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