Ontologia

Commune · CMR

Yaoundé 1

Cameroon

AwTropical, savannah(100 %)

Species observed

106

Observations

151

Area

71,2km²

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 Yaoundé 1 : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 19 interactions GloBI sur 3 types (connectance 6.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
19
Connectance
0.063
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

106 distinct species · 151 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

151 obs · 2 cellules
Obs. / cellule
≥ 110
110–109
110–109
110–109
< 110

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

Climate

Mean T°

23,3°C

Annual rain

1 601mm

Warmest m°

30,1°C

Coldest m°

19,8°C

Elevation: 687 m on average (min 619 m, max 972 m)

Bioclimatic detailsExpert
Annual mean temp.
23,3°C
Annual rain
1 601mm
Warmest month
30,1°C
Coldest month
19,8°C
Mean alt.
687m
Min
619m
Max
972m
Std. dev.
44m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

5,4

Org. C

27,2g/kg

Clay

39,4%

Sand

49,7%

Silt

10,9%

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

Dominant lithology: mtGLiMaggregated to Mfoundi

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
40,3g/kg
Clay
35,6%
Sand
52,9%
Silt
11,5%
5–15 cm
pH H₂O
5,4
Org. C
27,0g/kg
Clay
38,0%
Sand
50,8%
Silt
11,2%
15–30 cm
pH H₂O
5,4
Org. C
14,3g/kg
Clay
44,7%
Sand
45,5%
Silt
9,8%

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

Land cover

Forest17.9%
Crops5.7%
Built-up15.3%
Bare soil0.8%
Other (grassland, water…)60.3%

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

Hydrology2 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

27,4km

Basins crossed

2

Max stream order

2

Max drainage

1 280km²

Discharge in basins

1,1m³/s

Mean precip.

1 630mm/an

Mean T°

24,2°C

Moisture idx

0,05

Mean runoff

486mm/an

Mean elev. (basins)

640m

Watersheds crossing here

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

Human pressure

Pop. density

24hab/km²

Night light

8,7nW

Built-up

1 525,8%

Pesticides

1,4kg/km²

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