Ontologia

HydroBASINS lev08 watershed · #1080824180

Bassin du Niger

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 : Borgu, Magama, Ngaski

162% lakePfafstetter: 14239301

Sub-basin area

1 061,9km²

Upstream area

1 571 141,9km²

Discharge

1 388,61m³/s

Mean elev.

182m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Oli14 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Doro

    IUCN Not Reported

    Forest Reserve

    221.85 km² overlap

  • Kainji Lake

    IUCN II

    National Park

    143.54 km² overlap

  • Borgu

    IUCN Not Reported

    Forest Reserve

    69.36 km² overlap

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

Species present

341 distinct species · 944 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

944 obs · 21 cellules
Obs. / cellule
≥ 233
108–232
59–107
10–58
< 10

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

Ecological tissue

Sample of 32 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 du Niger : 29 espèces reliées par 28 interactions GloBI sur 3 types (connectance 5.6%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
28
Connectance
0.057
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°

27,2°C

Annual rain

1 095mm

Moisture idx (CMI)

-0,43

Runoff

204mm/an

PET

1 910mm

AET

874mm

Mean slope

1,2°

Water table

105cm

Forest

28%

Crops

17%

Urban

2%

Protected

28%

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