Ontologia

Department · GAB

Ntem

Gabon

AwTropical, savannah(72 %)

Species observed

404

Observations

1 424

Area

2 835,8km²

Ecological tissue

Sample of 39 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 Ntem : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 2 types (connectance 5.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
39
Connectance
0.053
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

404 distinct species · 1 424 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 424 obs · 39 cellules
Obs. / cellule
≥ 514
137–513
17–136
9–16
< 9

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 570mm

Warmest m°

29,5°C

Coldest m°

19,9°C

Elevation: 589 m on average (min 553 m, max 644 m)

Bioclimatic detailsExpert
Annual mean temp.
23,5°C
Annual rain
1 570mm
Warmest month
29,5°C
Coldest month
19,9°C
Mean alt.
589m
Min
553m
Max
644m
Std. dev.
13m
Köppen-Geiger (dominant)
AwTropical, savannah(72 %)Tropical

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

Soil & lithology

pH H₂O

4,7

Org. C

32,4g/kg

Clay

48,7%

Sand

43,6%

Silt

7,7%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,7
Org. C
54,8g/kg
Clay
45,4%
Sand
46,5%
Silt
8,1%
5–15 cm
pH H₂O
4,7
Org. C
26,3g/kg
Clay
47,7%
Sand
44,4%
Silt
7,8%
15–30 cm
pH H₂O
4,7
Org. C
15,9g/kg
Clay
53,0%
Sand
39,8%
Silt
7,2%

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

Land cover

Forest89.2%
Crops0.6%
Built-up0.1%
Bare soil0.0%
Other (grassland, water…)10.1%

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

Hydrology9 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

133,6km

Basins crossed

9

Max stream order

6

Max drainage

17 800km²

Discharge in basins

285,2m³/s

Mean precip.

1 746mm/an

Mean T°

23,6°C

Moisture idx

0,11

Mean runoff

617mm/an

Mean elev. (basins)

620m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

13,1%

Pesticides

20,0kg/km²

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