Ontologia

HydroBASINS lev08 watershed · #1081128290

Bassin de Lengoue

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 : Makoua, Ouesso

Pfafstetter: 13242460

Sub-basin area

1 795,3km²

Upstream area

1 795,5km²

Discharge

20,02m³/s

Mean elev.

426m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Lengoue489 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

187 distinct species · 378 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

378 obs · 18 cellules
Obs. / cellule
≥ 219
79–218
9–78
5–8
< 5

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

Ecological tissue

Sample of 38 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 Lengoue : 36 espèces dont 7 patrimoniales (LR IUCN CR/EN/VU) reliées par 33 interactions GloBI sur 4 types (connectance 4.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
33
Connectance
0.047
Patrimoniales
7
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°

24,7°C

Annual rain

1 665mm

Moisture idx (CMI)

-0,01

Runoff

333mm/an

PET

1 681mm

AET

1 388mm

Mean slope

1,9°

Water table

117cm

Forest

90%

Crops

0%

Urban

0%

Protected

13%

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