Ontologia

Commune · CMR

Nganha

Cameroon

AwTropical, savannah(98 %)

Species observed

443

Observations

975

Area

1 449,4km²

Ecological tissue

Sample of 3 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 Nganha : 3 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

443 distinct species · 975 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

975 obs · 23 cellules
Obs. / cellule
≥ 390
95–389
38–94
5–37
< 5

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

Climate

Mean T°

22,3°C

Annual rain

1 595mm

Warmest m°

32,5°C

Coldest m°

15,5°C

Elevation: 1 121 m on average (min 793 m, max 1 707 m)

Bioclimatic detailsExpert
Annual mean temp.
22,3°C
Annual rain
1 595mm
Warmest month
32,5°C
Coldest month
15,5°C
Mean alt.
1 121m
Min
793m
Max
1 707m
Std. dev.
197m
Köppen-Geiger (dominant)
AwTropical, savannah(98 %)Tropical

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

Soil & lithology

pH H₂O

5,8

Org. C

20,5g/kg

Clay

33,9%

Sand

40,6%

Silt

25,5%

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

Dominant lithology: vbGLiMaggregated to Vina

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
29,1g/kg
Clay
32,4%
Sand
41,6%
Silt
26,0%
5–15 cm
pH H₂O
5,8
Org. C
20,0g/kg
Clay
33,3%
Sand
41,1%
Silt
25,7%
15–30 cm
pH H₂O
5,8
Org. C
12,4g/kg
Clay
36,0%
Sand
39,3%
Silt
24,8%

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

Land cover

Forest22.2%
Crops10.9%
Built-up0.1%
Bare soil0.4%
Other (grassland, water…)66.4%

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

Hydrology11 basins · 0 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

207,4km

Basins crossed

11

Max stream order

4

Max drainage

2 837km²

Discharge in basins

57,0m³/s

Mean precip.

1 497mm/an

Mean T°

22,3°C

Moisture idx

-0,14

Mean runoff

445mm/an

Mean elev. (basins)

1 089m

Watersheds crossing here

2 more basins

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

Human pressure

Pop. density

0hab/km²

Built-up

11,3%

Pesticides

1,6kg/km²

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