Bas Ogooue
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2009
13 637 km²
Department · GAB
Abanga-Bigné
Gabon
AwTropical, savannah(100 %)
Species observed
1 665
Observations
13 563
Area
9 170km²
Ecological tissue
Sample of 13 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 Abanga-Bigné : 13 espèces reliées par 8 interactions GloBI sur 4 types (connectance 10.3%, filtre Serrano α=0.2).
Espèces affichées
13
Interactions affichées
8
Connectance
0.103
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
1 665 distinct species · 13 563 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,5°C
Annual rain
1 983mm
Warmest m°
29,9°C
Coldest m°
20,3°C
Elevation: 283 m on average (min 21 m, max 773 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
24,5°C
Annual rain
1 983mm
Warmest month
29,9°C
Coldest month
20,3°C
Mean alt.
283m
Min
21m
Max
773m
Std. dev.
174m
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
4,8
Org. C
33,5g/kg
Clay
29,2%
Sand
51,0%
Silt
19,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,8
Org. C
46,1g/kg
Clay
28,2%
Sand
51,7%
Silt
20,1%
5–15 cm
pH H₂O
4,8
Org. C
34,9g/kg
Clay
28,3%
Sand
51,7%
Silt
20,0%
15–30 cm
pH H₂O
4,9
Org. C
19,5g/kg
Clay
31,0%
Sand
49,5%
Silt
19,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest92.6%
Crops0.1%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)7.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology21 basins · 16 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
845,5km
Lake surface here
14,03km²
Basins crossed
21
Max stream order
7
Max drainage
171 170km²
Discharge in basins
13 054,3m³/s
Mean precip.
1 963mm/an
Mean T°
25,0°C
Moisture idx
0,17
Mean runoff
615mm/an
Mean elev. (basins)
303m
Watersheds crossing here
- Bassin de Ogoouésub-area2 127,7 km²overlap1515.39 km²17%
- Bassin de Okanosub-area2 247,4 km²overlap1392.51 km²15%
- Bassin de Mingouésub-area1 178,9 km²overlap1084.40 km²12%
- Bassin de M'boumisub-area1 606,3 km²overlap1068.31 km²12%
- Bassin de Ogoouésub-area691,4 km²overlap688.26 km²8%
- Bassin de Ogoouésub-area649,6 km²overlap646.67 km²7%
- Bassin de Lélédisub-area2 038,8 km²overlap549.54 km²6%
- Bassin de Missangasub-area476,4 km²overlap474.31 km²5%
- Bassin de Abangasub-area590 km²overlap412.93 km²5%
12 more basinssorted by overlap
- Basin #45360sub-area317,2 km²overlap315.76 km²3%
- Basin #45250sub-area721 km²overlap303.77 km²3%
- Bassin de Mbinésub-area752,7 km²overlap206.79 km²2%
- Bassin de Lalitiésub-area1 091,5 km²overlap191.64 km²2%
- Bassin de Ogoouésub-area124,1 km²overlap115.31 km²1%
- Bassin de Okanosub-area341,6 km²overlap71.64 km²1%
- Bassin de Abangasub-area320,9 km²overlap71.37 km²1%
- Bassin de Ogoouésub-area465,7 km²overlap30.40 km²0%
- Bassin de Ogoouésub-area82,6 km²overlap14.70 km²0%
- Bassin de Rambouèsub-area377,4 km²overlap13.04 km²0%
- Basin #45350sub-area3,1 km²overlap2.91 km²0%
- Basin #45160sub-area256,8 km²overlap0.29 km²0%
Lakes (16, top by area)
- Lac Ayèmarea5,2 km²avg depth8.7 m
- Lac Nguénéarea3,3 km²avg depth4.6 m
- Lac Menguègnarea1,5 km²avg depth5.0 m
- Lac Azougéarea1 km²avg depth3.6 m
- Lac 1407127area0,9 km²avg depth4.5 m
- Lac 1407146area0,3 km²avg depth3.2 m
- Lac 1407111area0,3 km²avg depth4.6 m
- Lac 1407117area0,2 km²avg depth3.9 m
- Lac 1407100area0,2 km²avg depth4.7 m
Rivers / streams (8, ord ≥ 4)
- Ogoouéord 7len here302.40 km15%total1966 km
- Mingouéord 4len here157.39 km100%total158 km
- M'boumiord 7len here129.08 km84%total153 km
- Okanoord 5len here117.44 km32%total366 km
- Missangaord 3len here66.27 km100%total66 km
- Abangaord 5len here52.39 km24%total217 km
- N'Goloord 4len here12.25 km71%total17 km
- Bigneord 2len here8.32 km100%total8 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
1,1%
Pesticides
14,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas7
IUCN Not Reported · 5IUCN II · 1IUCN Not Applicable · 1🌊 Marine · 1
Parc national de la Lopé
IUCN IINational park · 2002
4 948 km²
Ecosystem and Relict Cultural Landscape of Lopé-Okanda
IUCN Not ApplicableWorld Heritage Site (natural or mixed) · 2007
4 934 km²
Ensemble historique d'Otoumbi 1
IUCN Not ReportedHistoric site · 2006
31 km²
Ensemble historique d'Otoumbi 2
IUCN Not ReportedHistoric site · 2006
25 km²
Ensemble historique d'Epona Elaemékora
IUCN Not ReportedHistoric site · 2006
20 km²
Complete list7 protected areas
- Bas OgooueWetland of International Importance (Ramsar Site)IUCN Not Reported200913 637 km²
- Parc national de la LopéNational parkIUCN II20024 948 km²
- Ecosystem and Relict Cultural Landscape of Lopé-OkandaWorld Heritage Site (natural or mixed)IUCN Not Applicable20074 934 km²
- Ensemble historique d'Otoumbi 1Historic siteIUCN Not Reported200631 km²
- Ensemble historique d'Otoumbi 2Historic siteIUCN Not Reported200625 km²
- Ensemble historique d'Epona ElaemékoraHistoric siteIUCN Not Reported200620 km²
- Ensemble historique de JunkvilleHistoric siteIUCN Not Reported200618 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN