Ontologia

HydroBASINS lev08 watershed · #1081210370

Bassin de Louna

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 3 administrative regions : Mayama, Ngabé, Ngamaba

Pfafstetter: 13230240

Sub-basin area

1 787km²

Upstream area

1 787,1km²

Discharge

48,5m³/s

Mean elev.

567m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Léfini1242 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Lessio-Louna

    IUCN IV

    Wildlife Sanctuary

    924.29 km² overlap

  • Léfini

    IUCN IV

    Wildlife Reserve

    21.12 km² overlap

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

Species present

754 distinct species · 6 157 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 157 obs · 26 cellules
Obs. / cellule
≥ 3 053
585–3 052
64–584
31–63
< 31

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

Ecological tissue

Sample of 15 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 Louna : 13 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 2 types (connectance 10.5%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
15
Interactions affichées
11
Connectance
0.105
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°

23,9°C

Annual rain

1 706mm

Moisture idx (CMI)

0,05

Runoff

854mm/an

PET

1 616mm

AET

1 307mm

Mean slope

6,7°

Water table

353cm

Forest

29%

Crops

3%

Urban

0%

Protected

53%

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