Ontologia

Commune · AGO

Otchinjau

Angola

BShArid, steppe, hot(100 %)

Species observed

109

Observations

170

Area

5 211km²

Ecological tissue

Sample of 29 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 Otchinjau : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 31 interactions GloBI sur 2 types (connectance 7.6%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
31
Connectance
0.076
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

109 distinct species · 170 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

170 obs · 21 cellules
Obs. / cellule
≥ 41
17–40
7–16
4–6
< 4

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

Climate

Mean T°

22,1°C

Annual rain

431mm

Warmest m°

33,2°C

Coldest m°

11,5°C

Elevation: 1 191 m on average (min 885 m, max 1 313 m)

Bioclimatic detailsExpert
Annual mean temp.
22,1°C
Annual rain
431mm
Warmest month
33,2°C
Coldest month
11,5°C
Mean alt.
1 191m
Min
885m
Max
1 313m
Std. dev.
63m
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

7,1

Org. C

7,2g/kg

Clay

23,6%

Sand

65,4%

Silt

11,0%

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

Dominant lithology: suGLiMaggregated to Cahama

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
8,4g/kg
Clay
20,6%
Sand
68,2%
Silt
11,1%
5–15 cm
pH H₂O
7,1
Org. C
6,9g/kg
Clay
23,7%
Sand
65,2%
Silt
11,1%
15–30 cm
pH H₂O
7,2
Org. C
6,2g/kg
Clay
26,5%
Sand
62,8%
Silt
10,7%

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

Land cover

Forest17.2%
Crops4.1%
Built-up0.0%
Bare soil1.4%
Other (grassland, water…)77.3%

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

Hydrology12 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

5,0km

Basins crossed

12

Max stream order

3

Max drainage

8 204km²

Discharge in basins

9,5m³/s

Mean precip.

461mm/an

Mean T°

21,3°C

Moisture idx

-0,73

Mean runoff

45mm/an

Mean elev. (basins)

1 181m

Watersheds crossing here

3 more basins

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.)