Ontologia

Department · CMR

Haut Nyong

Cameroon

AwTropical, savannah(91 %)

Species observed

3 392

Observations

18 250

Area

36 072,1km²

Ecological tissue

Sample of 38 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 Haut Nyong : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 4.8%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
34
Connectance
0.048
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

3 392 distinct species · 18 250 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

18 250 obs · 402 cellules
Obs. / cellule
≥ 435
103–434
19–102
7–18
< 7

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

Climate

Mean T°

23,5°C

Annual rain

1 601mm

Warmest m°

30,7°C

Coldest m°

19,5°C

Elevation: 638 m on average (min 388 m, max 808 m)

Bioclimatic detailsExpert
Annual mean temp.
23,5°C
Annual rain
1 601mm
Warmest month
30,7°C
Coldest month
19,5°C
Mean alt.
638m
Min
388m
Max
808m
Std. dev.
55m
Köppen-Geiger (dominant)
AwTropical, savannah(91 %)Tropical

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

Soil & lithology

pH H₂O

5,0

Org. C

22,8g/kg

Clay

44,9%

Sand

45,7%

Silt

9,5%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
35,6g/kg
Clay
41,7%
Sand
48,3%
Silt
10,0%
5–15 cm
pH H₂O
5,0
Org. C
20,9g/kg
Clay
44,0%
Sand
46,5%
Silt
9,6%
15–30 cm
pH H₂O
5,0
Org. C
11,8g/kg
Clay
49,0%
Sand
42,3%
Silt
8,7%

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

Land cover

Forest98.1%
Crops0.1%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)1.8%

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

Hydrology86 basins · 1 lakes · 82 rivers

Hydrology metrics for this exact territory

Stream length here

3 786,2km

Lake surface here

0,11km²

Basins crossed

86

Max stream order

6

Max drainage

60 531km²

Discharge in basins

3 431,7m³/s

Mean precip.

1 608mm/an

Mean T°

23,3°C

Moisture idx

-0,01

Mean runoff

384mm/an

Mean elev. (basins)

660m

Watersheds crossing here

77 more basins

Lakes (1, top by area)

Rivers / streams (82, ord ≥ 4)

70 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

3,5%

Pesticides

1,3kg/km²

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

Protected areas5

IUCN Not Applicable · 2IUCN IV · 2IUCN II · 1

Dja

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 1981

6 210 km²

Dja Faunal Reserve

IUCN Not Applicable

World Heritage Site (natural or mixed) · 1987

5 808 km²

Dja

IUCN IV

Wildlife Reserve · 2007

5 265 km²

Nki

IUCN II

National Park · 2005

3 132 km²

Ngoyla

IUCN IV

Wildlife Reserve · 2014

1 567 km²

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

Sub-administrations14