Ontologia

Region · cmr

Littoral

Cameroon

AmTropical, monsoon(95 %)

Species observed

5 243

Observations

60 892

Area

20 126,7km²

Ecological tissue

Sample of 27 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 Littoral : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
28
Connectance
0.074
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

5 243 distinct species · 60 892 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

60 892 obs · 451 cellules
Obs. / cellule
≥ 2 534
220–2 533
37–219
10–36
< 10

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

Climate

Mean T°

24,7°C

Annual rain

2 905mm

Warmest m°

30,6°C

Coldest m°

21,3°C

Elevation: 264 m on average (min -59 m, max 2 146 m)

Bioclimatic detailsExpert
Annual mean temp.
24,7°C
Annual rain
2 905mm
Warmest month
30,6°C
Coldest month
21,3°C
Mean alt.
264m
Min
-59m
Max
2 146m
Std. dev.
299m
Köppen-Geiger (dominant)
AmTropical, monsoon(95 %)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

29,9g/kg

Clay

32,5%

Sand

49,0%

Silt

18,5%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
40,5g/kg
Clay
30,6%
Sand
50,6%
Silt
18,8%
5–15 cm
pH H₂O
5,1
Org. C
29,3g/kg
Clay
31,7%
Sand
49,6%
Silt
18,7%
15–30 cm
pH H₂O
5,1
Org. C
20,1g/kg
Clay
35,1%
Sand
46,9%
Silt
18,0%

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

Land cover

Forest80.6%
Crops1.2%
Built-up0.5%
Bare soil0.1%
Other (grassland, water…)17.6%

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

Hydrology57 basins · 14 lakes · 87 rivers

Hydrology metrics for this exact territory

Stream length here

2 521,6km

Lake surface here

41,39km²

Basins crossed

57

Max stream order

7

Max drainage

133 624km²

Discharge in basins

13 726,6m³/s

Mean precip.

2 720mm/an

Mean T°

25,4°C

Moisture idx

0,44

Mean runoff

1 507mm/an

Mean elev. (basins)

299m

Watersheds crossing here

48 more basins

Lakes (14, top by area)

5 more lakes

Rivers / streams (87, ord ≥ 4)

75 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

0,2nW

Built-up

53,9%

Pesticides

1,1kg/km²

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

Protected areas4

IUCN IV · 3IUCN II · 1🌊 Marine · 1

Bayang-Mbo

IUCN IV

Wildlife Sanctuary · 1996

664 km²

Santchou

IUCN IV

Wildlife Reserve · 1964

70 km²

Lac Ossa

IUCN IV

Wildlife Reserve · 1948

45 km²

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

Sub-administrations4