Ontologia

Department · GAB

Haut-Ntem

Gabon

AwTropical, savannah(70 %)

Species observed

1 262

Observations

6 842

Area

14 289,6km²

Ecological tissue

Sample of 9 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-Ntem : 9 espèces reliées par 8 interactions GloBI sur 1 type (connectance 22.2%, filtre Serrano α=0.2).

Espèces affichées
9
Interactions affichées
8
Connectance
0.222
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

1 262 distinct species · 6 842 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 842 obs · 102 cellules
Obs. / cellule
≥ 650
121–649
26–120
7–25
< 7

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

Climate

Mean T°

23,8°C

Annual rain

1 573mm

Warmest m°

29,7°C

Coldest m°

20,0°C

Elevation: 564 m on average (min 475 m, max 812 m)

Bioclimatic detailsExpert
Annual mean temp.
23,8°C
Annual rain
1 573mm
Warmest month
29,7°C
Coldest month
20,0°C
Mean alt.
564m
Min
475m
Max
812m
Std. dev.
46m
Köppen-Geiger (dominant)
AwTropical, savannah(70 %)Tropical

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

Soil & lithology

pH H₂O

4,8

Org. C

31,1g/kg

Clay

47,5%

Sand

43,4%

Silt

9,1%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,8
Org. C
51,6g/kg
Clay
44,1%
Sand
46,3%
Silt
9,6%
5–15 cm
pH H₂O
4,8
Org. C
26,7g/kg
Clay
46,6%
Sand
44,1%
Silt
9,2%
15–30 cm
pH H₂O
4,8
Org. C
15,0g/kg
Clay
51,9%
Sand
39,6%
Silt
8,5%

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

Land cover

Forest97.5%
Crops0.1%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)2.4%

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

Hydrology30 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

406,7km

Basins crossed

30

Max stream order

6

Max drainage

24 629km²

Discharge in basins

623,9m³/s

Mean precip.

1 637mm/an

Mean T°

23,7°C

Moisture idx

0,01

Mean runoff

485mm/an

Mean elev. (basins)

582m

Watersheds crossing here

21 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,5%

Pesticides

18,4kg/km²

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

Protected areas1

IUCN II · 1

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