Ontologia

Commune · CMR

Douala 5

Cameroon

AmTropical, monsoon(100 %)

Species observed

139

Observations

339

Area

139,9km²

Ecological tissue

Sample of 34 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 Douala 5 : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 3 types (connectance 6.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
38
Connectance
0.064
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

139 distinct species · 339 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

339 obs · 4 cellules
Obs. / cellule
≥ 216
216–215
97–215
97–96
< 97

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

Climate

Mean T°

25,9°C

Annual rain

3 093mm

Warmest m°

31,1°C

Coldest m°

22,5°C

Elevation: 30 m on average (min 4 m, max 54 m)

Bioclimatic detailsExpert
Annual mean temp.
25,9°C
Annual rain
3 093mm
Warmest month
31,1°C
Coldest month
22,5°C
Mean alt.
30m
Min
4m
Max
54m
Std. dev.
14m
Köppen-Geiger (dominant)
AmTropical, monsoon(100 %)Tropical

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

Soil & lithology

pH H₂O

5,1

Org. C

30,4g/kg

Clay

34,4%

Sand

43,0%

Silt

22,6%

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

Dominant lithology: ssGLiMaggregated to Wouri

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
38,7g/kg
Clay
31,8%
Sand
44,9%
Silt
23,2%
5–15 cm
pH H₂O
5,1
Org. C
29,5g/kg
Clay
33,2%
Sand
43,9%
Silt
22,9%
15–30 cm
pH H₂O
5,1
Org. C
22,9g/kg
Clay
38,2%
Sand
40,1%
Silt
21,8%

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

Land cover

Forest42.6%
Crops7.1%
Built-up6.9%
Bare soil0.2%
Other (grassland, water…)43.1%

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

Hydrology3 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

22,5km

Basins crossed

3

Max stream order

6

Max drainage

12 236km²

Discharge in basins

95,3m³/s

Mean precip.

3 283mm/an

Mean T°

26,4°C

Moisture idx

0,55

Mean runoff

1 953mm/an

Mean elev. (basins)

47m

Watersheds crossing here

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

Human pressure

Pop. density

34hab/km²

Night light

3,1nW

Built-up

687,2%

Pesticides

1,1kg/km²

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