Ontologia

Municpality|City Council · AGO

Tombwa

Angola

BWhArid, desert, hot(97 %)

Species observed

977

Observations

5 171

Area

18 035km²

Ecological tissue

Sample of 18 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 Tombwa : 15 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). 4 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

977 distinct species · 5 171 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 171 obs · 196 cellules
Obs. / cellule
≥ 910
50–909
11–49
4–10
< 4

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

Climate

Mean T°

22,8°C

Annual rain

163mm

Warmest m°

32,4°C

Coldest m°

13,7°C

Elevation: 464 m on average (min -77 m, max 1 901 m)

Bioclimatic detailsExpert
Annual mean temp.
22,8°C
Annual rain
163mm
Warmest month
32,4°C
Coldest month
13,7°C
Mean alt.
464m
Min
-77m
Max
1 901m
Std. dev.
341m
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

7,3g/kg

Clay

10,8%

Sand

75,6%

Silt

13,6%

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

Dominant lithology: mtGLiM

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

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

Land cover

Forest1.4%
Crops0.1%
Built-up0.0%
Bare soil62.0%
Other (grassland, water…)36.5%

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

Hydrology33 basins · 3 lakes · 30 rivers

Hydrology metrics for this exact territory

Stream length here

1 601,6km

Lake surface here

1,23km²

Basins crossed

33

Max stream order

7

Max drainage

108 943km²

Discharge in basins

659,6m³/s

Mean precip.

118mm/an

Mean T°

19,9°C

Moisture idx

-0,92

Mean runoff

16mm/an

Mean elev. (basins)

481m

Watersheds crossing here

24 more basins

Lakes (3, top by area)

Rivers / streams (30, ord ≥ 4)

18 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

Sub-administrations2