Ontologia

Commune · AGO

Barra do Dande

Angola

BShArid, steppe, hot(100 %)

Species observed

270

Observations

795

Area

988,7km²

Ecological tissue

Sample of 33 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 Barra do Dande : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 24 interactions GloBI sur 3 types (connectance 4.5%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
24
Connectance
0.045
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

270 distinct species · 795 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

795 obs · 14 cellules
Obs. / cellule
≥ 303
132–302
41–131
37–40
< 37

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

Climate

Mean T°

24,9°C

Annual rain

571mm

Warmest m°

32,1°C

Coldest m°

17,7°C

Elevation: 61 m on average (min -11 m, max 216 m)

Bioclimatic detailsExpert
Annual mean temp.
24,9°C
Annual rain
571mm
Warmest month
32,1°C
Coldest month
17,7°C
Mean alt.
61m
Min
-11m
Max
216m
Std. dev.
43m
Köppen-Geiger (dominant)
BShArid, steppe, hot(100 %)Arid

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

Soil & lithology

pH H₂O

6,8

Org. C

17,6g/kg

Clay

27,7%

Sand

59,2%

Silt

13,1%

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

Dominant lithology: suGLiMaggregated to Dande

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
26,0g/kg
Clay
26,9%
Sand
60,0%
Silt
13,1%
5–15 cm
pH H₂O
6,8
Org. C
16,6g/kg
Clay
27,4%
Sand
59,5%
Silt
13,1%
15–30 cm
pH H₂O
6,8
Org. C
10,3g/kg
Clay
28,9%
Sand
58,1%
Silt
13,1%

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

Land cover

Forest17.1%
Crops9.8%
Built-up0.3%
Bare soil0.3%
Other (grassland, water…)72.5%

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

Hydrology11 basins · 16 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

106,8km

Lake surface here

13,30km²

Basins crossed

11

Max stream order

5

Max drainage

11 444km²

Discharge in basins

62,3m³/s

Mean precip.

568mm/an

Mean T°

25,3°C

Moisture idx

-0,60

Mean runoff

76mm/an

Mean elev. (basins)

168m

Watersheds crossing here

2 more basins

Lakes (16, top by area)

7 more lakes

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

35,3%

Pesticides

0,0kg/km²

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