Ontologia

Commune · AGO

Kalahanga

Angola

BShArid, steppe, hot(72 %)

Species observed

170

Observations

614

Area

1 084,3km²

Ecological tissue

Sample of 25 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 Kalahanga : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
20
Connectance
0.067
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

170 distinct species · 614 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

614 obs · 12 cellules
Obs. / cellule
≥ 404
85–403
28–84
16–27
< 16

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

570mm

Warmest m°

31,8°C

Coldest m°

14,5°C

Elevation: 594 m on average (min 228 m, max 923 m)

Bioclimatic detailsExpert
Annual mean temp.
22,8°C
Annual rain
570mm
Warmest month
31,8°C
Coldest month
14,5°C
Mean alt.
594m
Min
228m
Max
923m
Std. dev.
168m
Köppen-Geiger (dominant)
BShArid, steppe, hot(72 %)Arid

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

Soil & lithology

pH H₂O

7,0

Org. C

9,3g/kg

Clay

13,7%

Sand

78,5%

Silt

7,8%

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

Dominant lithology: mtGLiMaggregated to Baía Farta

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,0
Org. C
12,7g/kg
Clay
12,6%
Sand
79,6%
Silt
7,8%
5–15 cm
pH H₂O
7,0
Org. C
8,4g/kg
Clay
12,9%
Sand
79,3%
Silt
7,9%
15–30 cm
pH H₂O
7,0
Org. C
6,8g/kg
Clay
15,8%
Sand
76,6%
Silt
7,7%

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

Land cover

Forest8.6%
Crops13.9%
Built-up0.0%
Bare soil2.5%
Other (grassland, water…)75.0%

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

Hydrology8 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

43,5km

Basins crossed

8

Max stream order

5

Max drainage

15 674km²

Discharge in basins

94,2m³/s

Mean precip.

679mm/an

Mean T°

22,8°C

Moisture idx

-0,55

Mean runoff

141mm/an

Mean elev. (basins)

558m

Watersheds crossing here

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,5%

Pesticides

0,0kg/km²

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