Ontologia

HydroBASINS lev08 watershed · #1081169130

Bassin de Olimbé

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 2 administrative regions : Bendjé, Étimboué

33% lakePfafstetter: 13341020

Sub-basin area

1 592,3km²

Upstream area

1 592,3km²

Discharge

50,75m³/s

Mean elev.

38m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ogooué543 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Bas Ogooue

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    1356.82 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

54 distinct species · 169 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

169 obs · 12 cellules
Obs. / cellule
≥ 90
59–89
3–58
2–2
< 2

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

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 Bassin de Olimbé : 8 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 10 interactions GloBI sur 2 types (connectance 27.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
10
Connectance
0.278
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

25,8°C

Annual rain

2 028mm

Moisture idx (CMI)

0,26

Runoff

1 001mm/an

PET

1 506mm

AET

1 264mm

Mean slope

1,6°

Water table

48cm

Forest

86%

Crops

2%

Urban

0%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)