Bas Ogooue
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2009
13 637 km²
Department · GAB
Tsamba Mangotsi
Gabon
AwTropical, savannah(82 %)
Species observed
2 068
Observations
23 070
Area
8 749km²
Ecological tissue
Sample of 14 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 Tsamba Mangotsi : 10 espèces reliées par 11 interactions GloBI sur 2 types (connectance 12.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
14
Interactions affichées
11
Connectance
0.121
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
2 068 distinct species · 23 070 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,4°C
Annual rain
2 440mm
Warmest m°
29,8°C
Coldest m°
19,6°C
Elevation: 250 m on average (min 22 m, max 770 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
24,4°C
Annual rain
2 440mm
Warmest month
29,8°C
Coldest month
19,6°C
Mean alt.
250m
Min
22m
Max
770m
Std. dev.
173m
Köppen-Geiger (dominant)
AwTropical, savannah(82 %)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
32,6g/kg
Clay
24,4%
Sand
52,5%
Silt
23,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,9
Org. C
44,3g/kg
Clay
23,8%
Sand
53,0%
Silt
23,2%
5–15 cm
pH H₂O
4,9
Org. C
32,7g/kg
Clay
23,8%
Sand
53,1%
Silt
23,0%
15–30 cm
pH H₂O
4,9
Org. C
20,9g/kg
Clay
25,6%
Sand
51,4%
Silt
22,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest92.2%
Crops0.3%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)7.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology21 basins · 2 lakes · 14 rivers
Hydrology metrics for this exact territory
Stream length here
1 070,4km
Lake surface here
0,70km²
Basins crossed
21
Max stream order
6
Max drainage
32 637km²
Discharge in basins
2 557,0m³/s
Mean precip.
2 050mm/an
Mean T°
25,2°C
Moisture idx
0,15
Mean runoff
987mm/an
Mean elev. (basins)
279m
Watersheds crossing here
- Bassin de Ngouniésub-area2 146,8 km²overlap2124.38 km²24%
- Bassin de Oviguisub-area2 239,4 km²overlap1494.59 km²17%
- Bassin de Lalitiésub-area1 091,5 km²overlap888.37 km²10%
- Bassin de Ikobésub-area832,8 km²overlap746.37 km²9%
- Bassin de Ngouniésub-area1 793,2 km²overlap724.64 km²8%
- Bassin de Ikoysub-area614,4 km²overlap611.69 km²7%
- Bassin de Ikoysub-area499,2 km²overlap485.31 km²6%
- Bassin de Ngouniésub-area507,5 km²overlap400.96 km²5%
- Bassin de Wakasub-area670,7 km²overlap333.73 km²4%
12 more basinssorted by overlap
- Bassin de Ngouniésub-area1 475,9 km²overlap226.16 km²3%
- Bassin de Ikoysub-area1 097,1 km²overlap202.14 km²2%
- Bassin de Ikoysub-area283,4 km²overlap156.91 km²2%
- Bassin de Ngouniésub-area138,9 km²overlap138.27 km²2%
- Bassin de M'boumisub-area1 606,3 km²overlap84.89 km²1%
- Bassin de Ngouniésub-area503,2 km²overlap34.71 km²0%
- Bassin de Mingouésub-area1 178,9 km²overlap28.42 km²0%
- Bassin de Ngouniésub-area53,5 km²overlap25.96 km²0%
- Bassin de Oumbasub-area1 311 km²overlap12.77 km²0%
- Bassin de Ovanguésub-area1 347,7 km²overlap11.83 km²0%
- Bassin de Ezangasub-area1 983 km²overlap9.67 km²0%
- Bassin de Doughoughousub-area307,8 km²overlap7.21 km²0%
Lakes (2, top by area)
Rivers / streams (14, ord ≥ 4)
- Ngouniéord 6len here283.25 km32%total872 km
- Ikoyord 5len here148.96 km40%total372 km
- Ikobéord 4len here143.15 km92%total156 km
- Doubandjiord 4len here106.14 km100%total106 km
- Oviguiord 5len here90.64 km56%total160 km
- Lalitiéord 4len here83.86 km100%total84 km
- Davoord 3len here72.91 km100%total73 km
- Sambaord 4len here41.69 km100%total42 km
- Bindoloord 3len here38.93 km97%total40 km
- Wakaord 3len here19.71 km38%total52 km
- Remboord 3len here18.10 km100%total18 km
- Igéjiord 1len here14.16 km94%total15 km
2 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
1,2%
Pesticides
16,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN II · 1🌊 Marine · 1
Parc national de Waka
IUCN IINational park · 2002
1 064 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN