Ontologia

Department · CMR

Sanaga Maritime

Cameroon

AmTropical, monsoon(91 %)

Species observed

2 319

Observations

14 735

Area

9 256,3km²

Ecological tissue

Sample of 21 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 Sanaga Maritime : 18 espèces reliées par 19 interactions GloBI sur 3 types (connectance 7.5%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
19
Connectance
0.075
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

2 319 distinct species · 14 735 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 735 obs · 196 cellules
Obs. / cellule
≥ 963
127–962
22–126
7–21
< 7

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

Climate

Mean T°

24,9°C

Annual rain

2 784mm

Warmest m°

30,2°C

Coldest m°

21,7°C

Elevation: 226 m on average (min -59 m, max 1 041 m)

Bioclimatic detailsExpert
Annual mean temp.
24,9°C
Annual rain
2 784mm
Warmest month
30,2°C
Coldest month
21,7°C
Mean alt.
226m
Min
-59m
Max
1 041m
Std. dev.
252m
Köppen-Geiger (dominant)
AmTropical, monsoon(91 %)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

29,0g/kg

Clay

30,6%

Sand

53,1%

Silt

16,3%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
40,3g/kg
Clay
28,9%
Sand
54,6%
Silt
16,5%
5–15 cm
pH H₂O
5,1
Org. C
27,3g/kg
Clay
29,7%
Sand
53,9%
Silt
16,4%
15–30 cm
pH H₂O
5,1
Org. C
19,3g/kg
Clay
33,3%
Sand
50,8%
Silt
15,8%

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

Land cover

Forest82.6%
Crops0.6%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)16.7%

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

Hydrology31 basins · 13 lakes · 42 rivers

Hydrology metrics for this exact territory

Stream length here

1 128,0km

Lake surface here

41,11km²

Basins crossed

31

Max stream order

7

Max drainage

133 624km²

Discharge in basins

11 087,9m³/s

Mean precip.

2 587mm/an

Mean T°

25,6°C

Moisture idx

0,41

Mean runoff

1 320mm/an

Mean elev. (basins)

243m

Watersheds crossing here

22 more basins

Rivers / streams (42, ord ≥ 4)

30 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

14,3%

Pesticides

1,0kg/km²

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

Protected areas2

IUCN II · 1IUCN IV · 1🌊 Marine · 1

Lac Ossa

IUCN IV

Wildlife Reserve · 1948

45 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations12