Bas Ogooue
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2009
13 637 km²
Province · gab
Moyen-Ogooué
Gabon
AwTropical, savannah(97 %)
Species observed
3 160
Observations
40 456
Area
17 829,9km²
Ecological tissue
Sample of 20 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 Moyen-Ogooué : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2).
Espèces affichées
20
Interactions affichées
14
Connectance
0.074
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
3 160 distinct species · 40 456 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
25,0°C
Annual rain
2 125mm
Warmest m°
30,2°C
Coldest m°
20,6°C
Elevation: 171 m on average (min 5 m, max 773 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
25,0°C
Annual rain
2 125mm
Warmest month
30,2°C
Coldest month
20,6°C
Mean alt.
171m
Min
5m
Max
773m
Std. dev.
174m
Köppen-Geiger (dominant)
AwTropical, savannah(97 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
4,9
Org. C
33,4g/kg
Clay
26,1%
Sand
52,2%
Silt
21,7%
Average over 0-30 cm. Per-depth details in expert panel.
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,9
Org. C
43,9g/kg
Clay
25,1%
Sand
53,0%
Silt
22,0%
5–15 cm
pH H₂O
4,9
Org. C
33,9g/kg
Clay
25,0%
Sand
53,0%
Silt
21,9%
15–30 cm
pH H₂O
4,9
Org. C
22,3g/kg
Clay
28,2%
Sand
50,5%
Silt
21,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest88.9%
Crops0.2%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)10.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology43 basins · 50 lakes · 19 rivers
Hydrology metrics for this exact territory
Stream length here
1 539,2km
Lake surface here
445,97km²
Basins crossed
43
Max stream order
7
Max drainage
208 965km²
Discharge in basins
30 173,7m³/s
Mean precip.
2 021mm/an
Mean T°
25,5°C
Moisture idx
0,21
Mean runoff
808mm/an
Mean elev. (basins)
192m
Watersheds crossing here
- Bassin de Ezangasub-area1 983 km²overlap1786.16 km²10%
- Bassin de Ogoouésub-area2 127,7 km²overlap1515.39 km²8%
- Bassin de M'boumisub-area1 606,3 km²overlap1514.28 km²8%
- Bassin de Okanosub-area2 247,4 km²overlap1392.51 km²8%
- Bassin de Ngouniésub-area1 475,9 km²overlap1243.11 km²7%
- Bassin de Mingouésub-area1 178,9 km²overlap1084.40 km²6%
- Bassin de Rèmbo Ouangosub-area992,4 km²overlap911.94 km²5%
- Bassin de Ogoouésub-area854,4 km²overlap850.63 km²5%
- Bassin de Mbinésub-area752,7 km²overlap705.45 km²4%
34 more basinssorted by overlap
- Bassin de Rembo Azingosub-area720 km²overlap695.32 km²4%
- Bassin de Ogoouésub-area691,4 km²overlap688.26 km²4%
- Bassin de Ogoouésub-area649,6 km²overlap646.67 km²4%
- Bassin de Ogoouésub-area595,1 km²overlap576.25 km²3%
- Bassin de Lélédisub-area2 038,8 km²overlap549.54 km²3%
- Bassin de Missangasub-area476,4 km²overlap474.31 km²3%
- Bassin de Ogoouésub-area465,7 km²overlap463.62 km²3%
- Bassin de Abangasub-area590 km²overlap412.93 km²2%
- Bassin de Rèmbo Ouangosub-area407,4 km²overlap405.56 km²2%
- Basin #45360sub-area317,2 km²overlap315.76 km²2%
- Basin #45250sub-area721 km²overlap303.77 km²2%
- Basin #57430sub-area303,5 km²overlap297.97 km²2%
- Bassin de Orongasub-area225,2 km²overlap224.22 km²1%
- Bassin de Lalitiésub-area1 091,5 km²overlap198.30 km²1%
- Bassin de Rèmbo Ouangosub-area434,4 km²overlap181.97 km²1%
- Bassin de Ogoouésub-area124,1 km²overlap123.58 km²1%
- Bassin de Okanosub-area341,6 km²overlap71.64 km²0%
- Bassin de Abangasub-area320,9 km²overlap71.37 km²0%
- Bassin de Rèmbo Ouangosub-area34,2 km²overlap34.09 km²0%
- Bassin de Rambouèsub-area377,4 km²overlap21.67 km²0%
- Bassin de Ogoouésub-area521,7 km²overlap15.14 km²0%
- Bassin de Ogoouésub-area82,6 km²overlap14.70 km²0%
- Bassin de Ikoysub-area499,2 km²overlap11.71 km²0%
- Bassin de Niémbisub-area997,5 km²overlap9.68 km²0%
- Bassin de Ogoouésub-area447,1 km²overlap5.70 km²0%
- Bassin de Ogoouésub-area3,6 km²overlap3.63 km²0%
- Basin #45350sub-area3,1 km²overlap2.91 km²0%
- Bassin de Bilagonesub-area1 400,4 km²overlap2.19 km²0%
- Basin #49510sub-area125,8 km²overlap1.86 km²0%
- Bassin de Noouésub-area264,6 km²overlap0.77 km²0%
- Basin #20730sub-area798,2 km²overlap0.48 km²0%
- Basin #45160sub-area256,8 km²overlap0.29 km²0%
- Bassin de Ngouniésub-area2 146,8 km²overlap0.19 km²0%
- Bassin de Ovanguésub-area1 347,7 km²overlap0.00 km²0%
Lakes (50, top by area)
- Onanguearea249 km²avg depth29.2 m
- Lac Azingoarea55,3 km²avg depth11.4 m
- Lac Goméarea14,3 km²avg depth7.0 m
- Lac Nkoniéarea14 km²avg depth11.0 m
- Lac Ziléarea8 km²avg depth6.8 m
- Lac Evaroarea7,7 km²avg depth7.0 m
- Lac Nyondjé d’Amontarea7 km²avg depth9.4 m
- Lac Logéarea6,9 km²avg depth7.1 m
- Lac Inyogoarea6,4 km²avg depth5.9 m
41 more lakes
- Lac Déguèliéarea6,2 km²avg depth7.4 m
- Lac Iouandéarea5,3 km²avg depth3.5 m
- Lac Ayèmarea5,2 km²avg depth8.7 m
- Lac Nyayéarea5,2 km²avg depth1.7 m
- Lac Ouambéarea5,1 km²avg depth10.6 m
- Lac Adoléarea4,3 km²avg depth5.9 m
- Lac Ntchoniéarea3,9 km²avg depth6.2 m
- Lac Igoulouéarea3,7 km²avg depth11.8 m
- Lac Ogondouéarea3,5 km²avg depth7.9 m
- Lac Nguénéarea3,3 km²avg depth4.6 m
- Lac Pandjéarea2,3 km²avg depth2.7 m
- Lac Nyondjé d’Avalarea2,3 km²avg depth9.2 m
- Lac Gombouéarea2,2 km²avg depth6.9 m
- Lac Ogonbiéarea2 km²avg depth10.7 m
- Lac Akombiéarea2 km²avg depth7.6 m
- Lac Kébandaarea1,9 km²avg depth6.5 m
- Lac Karilembaarea1,7 km²avg depth3.9 m
- Lac Menguègnarea1,5 km²avg depth5.0 m
- Lac Nyondjé Avalarea1,4 km²avg depth8.5 m
- Lac Bagéarea1,1 km²avg depth6.4 m
- Lac Azougéarea1 km²avg depth3.6 m
- Lac 1407399area1 km²avg depth5.0 m
- Lac 1407127area0,9 km²avg depth4.5 m
- Lac 1407277area0,9 km²avg depth4.2 m
- Lac 1407288area0,9 km²avg depth3.7 m
- Lac 1407405area0,9 km²avg depth5.5 m
- Lac 1407358area0,8 km²avg depth5.5 m
- Lac 1407363area0,8 km²avg depth3.9 m
- Lac 1407432area0,8 km²avg depth1.9 m
- Lac 1407367area0,8 km²avg depth4.8 m
- Lac 1407338area0,7 km²avg depth6.5 m
- Lac 1407369area0,6 km²avg depth4.1 m
- Lac 1407327area0,6 km²avg depth4.1 m
- Lac 1407186area0,6 km²avg depth4.9 m
- Lac 1407463area0,6 km²avg depth5.0 m
- Lac 1407379area0,6 km²avg depth6.0 m
- Lac 1407211area0,6 km²avg depth3.9 m
- Lac 1407307area0,6 km²avg depth2.6 m
- Lac 1407340area0,6 km²avg depth3.6 m
- Lac 1407392area0,5 km²avg depth6.3 m
- Lac 1407271area0,5 km²avg depth2.0 m
Rivers / streams (19, ord ≥ 4)
- Ogoouéord 7len here498.55 km25%total1966 km
- Mingouéord 4len here157.39 km100%total158 km
- M'boumiord 7len here152.46 km100%total153 km
- Okanoord 5len here117.44 km32%total366 km
- Rèmbo Ouangoord 5len here104.79 km64%total165 km
- Ngouniéord 6len here79.43 km9%total872 km
- Mandjibéord 6len here71.39 km92%total77 km
- Missangaord 3len here66.27 km100%total66 km
- Rembo Azingoord 4len here61.06 km100%total61 km
- Mbinéord 4len here52.67 km100%total53 km
- Abangaord 5len here52.39 km24%total217 km
- Orongaord 4len here35.05 km100%total35 km
7 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
2,5%
Pesticides
16,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas9
IUCN Not Reported · 6IUCN II · 1IUCN Not Applicable · 1IUCN IV · 1🌊 Marine · 3
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
Reserve Présidentielle Wonga Wongué
IUCN Not ReportedPresidential reserve · 1972
4 260 km²
Wonga-Wongué
IUCN IVWetland of International Importance (Ramsar Site) · 1986
3 966 km²
Ensemble historique d'Otoumbi 1
IUCN Not ReportedHistoric site · 2006
31 km²
Complete list9 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
- Reserve Présidentielle Wonga WonguéPresidential reserveIUCN Not Reported19724 260 km²
- Wonga-WonguéWetland of International Importance (Ramsar Site)IUCN IV19863 966 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