Commune · CMR
Sa'a
Cameroon
Species observed
402
Observations
1 297
Area
727,7km²
Ecological tissue
Sample of 30 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).
Indicateurs du tissu écologique
Tissu écologique de Sa'a : 25 espèces reliées par 29 interactions GloBI sur 2 types (connectance 6.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
402 distinct species · 1 297 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,8°C
Annual rain
1 354mm
Warmest m°
32,6°C
Coldest m°
20,9°C
Elevation: 498 m on average (min 381 m, max 647 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
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
21,8g/kg
Clay
27,0%
Sand
57,5%
Silt
15,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to Lekié
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology6 basins · 0 lakes · 23 rivers
Hydrology metrics for this exact territory
Stream length here
182,8km
Basins crossed
6
Max stream order
7
Max drainage
123 131km²
Discharge in basins
1 787,8m³/s
Mean precip.
1 633mm/an
Mean T°
24,9°C
Moisture idx
0,03
Mean runoff
443mm/an
Mean elev. (basins)
524m
Watersheds crossing here
- Bassin de Polosub-area448,1 km²overlap329.58 km²45%
- Bassin de Afoumlasub-area1 279,8 km²overlap156.36 km²21%
- Bassin de Lékiésub-area774,3 km²overlap94.11 km²13%
- Bassin de Mgbesub-area263,8 km²overlap68.69 km²9%
- Bassin de Koumasub-area99,5 km²overlap53.59 km²7%
- Bassin de Avo'osub-area974,2 km²overlap25.34 km²3%
Rivers / streams (23, ord ≥ 4)
- Mbossoord 2len here24.25 km100%total24 km
- Afambaord 4len here20.42 km54%total38 km
- Poloord 7len here18.59 km51%total37 km
- Sanagaord 7len here13.20 km1%total964 km
- Ndobaord 1len here10.94 km93%total12 km
- Ngaord 2len here10.67 km99%total11 km
- Koumaord 2len here10.64 km100%total11 km
- Mgbeord 2len here9.50 km49%total20 km
- Césalaord 1len here8.68 km100%total9 km
- Ebéléord 1len here7.37 km100%total7 km
- Dwaord 2len here7.29 km26%total28 km
- Ngomoord 2len here7.22 km75%total10 km
11 more river segmentssorted by Strahler order + length
- Womékoaord 1len here5.25 km100%total5 km
- Logoord 7len here4.84 km86%total6 km
- Osséméord 7len here4.60 km99%total5 km
- Soussomoord 1len here4.23 km100%total4 km
- Nalaord 1len here3.79 km72%total5 km
- Makakord 7len here3.78 km53%total7 km
- Bobengoboord 1len here2.92 km100%total3 km
- Edoumaord 1len here2.53 km26%total10 km
- Komoord 1len here1.44 km100%total1 km
- Pamnaord 2len here0.54 km4%total14 km
- Wangaord 7len here0.09 km3%total3 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
79,5%
Pesticides
1,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)