Ontologia

Department · GAB

Okano

Gabon

AwTropical, savannah(100 %)

Species observed

2 206

Observations

17 102

Area

9 580,8km²

Ecological tissue

Sample of 7 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 Okano : 2 espèces reliées par 7 interactions GloBI sur 1 type (connectance 33.3%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
7
Interactions affichées
7
Connectance
0.333
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

2 206 distinct species · 17 102 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 102 obs · 158 cellules
Obs. / cellule
≥ 1 567
260–1 566
96–259
28–95
< 28

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

Climate

Mean T°

24,0°C

Annual rain

1 771mm

Warmest m°

29,6°C

Coldest m°

20,0°C

Elevation: 470 m on average (min 187 m, max 866 m)

Bioclimatic detailsExpert
Annual mean temp.
24,0°C
Annual rain
1 771mm
Warmest month
29,6°C
Coldest month
20,0°C
Mean alt.
470m
Min
187m
Max
866m
Std. dev.
82m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

4,5

Org. C

30,5g/kg

Clay

44,0%

Sand

40,3%

Silt

15,7%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,5
Org. C
43,9g/kg
Clay
42,2%
Sand
41,6%
Silt
16,2%
5–15 cm
pH H₂O
4,5
Org. C
31,9g/kg
Clay
43,2%
Sand
40,8%
Silt
15,9%
15–30 cm
pH H₂O
4,5
Org. C
15,6g/kg
Clay
46,5%
Sand
38,4%
Silt
15,1%

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

Land cover

Forest93.8%
Crops0.1%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)5.9%

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

Hydrology19 basins · 3 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

520,0km

Lake surface here

0,51km²

Basins crossed

19

Max stream order

5

Max drainage

147 695km²

Discharge in basins

519,3m³/s

Mean precip.

1 764mm/an

Mean T°

23,9°C

Moisture idx

0,08

Mean runoff

598mm/an

Mean elev. (basins)

503m

Watersheds crossing here

10 more basins

Lakes (3, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

1,4%

Pesticides

19,6kg/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