Ontologia

HydroBASINS lev08 watershed · #1080626610

Bassin de Béli

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 1 administrative regions : Oudalan

2% lakePfafstetter: 14274520

Sub-basin area

1 153,1km²

Upstream area

1 153,4km²

Discharge

0,68m³/s

Mean elev.

278m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Béli45 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Sahel

    IUCN IV

    Sylvo-pastoral Reserve and Partial Wildlife Reserve

    1148.95 km² overlap

  • Mare de Yomboli

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    52.07 km² overlap

  • Mare de Darkoye

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    17.17 km² overlap

  • La Mare d’Oursi

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    10.98 km² overlap

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

Species present

161 distinct species · 1 568 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 568 obs · 25 cellules
Obs. / cellule
≥ 575
174–574
45–173
14–44
< 14

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 Béli : 7 espèces reliées par 7 interactions GloBI sur 2 types (connectance 19.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
7
Connectance
0.194
Patrimoniales
0
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°

29,1°C

Annual rain

337mm

Moisture idx (CMI)

-0,84

Runoff

19mm/an

PET

2 149mm

AET

282mm

Mean slope

0,3°

Water table

141cm

Forest

0%

Crops

29%

Urban

0%

Protected

100%

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