Ontologia

HydroBASINS lev08 watershed · #1080789070

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 : Agwara, Ngaski, Yauri

Pfafstetter: 14239701

Sub-basin area

528,7km²

Upstream area

1 552 542,1km²

Discharge

1 271,51m³/s

Mean elev.

183m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger314 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Yelwa Fuel

    IUCN Not Reported

    Forest Reserve

    7.20 km² overlap

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

Species present

59 distinct species · 237 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

237 obs · 12 cellules
Obs. / cellule
≥ 77
52–76
23–51
15–22
< 15

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

Ecological tissue

Sample of 17 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 : 16 espèces reliées par 12 interactions GloBI sur 2 types (connectance 8.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
12
Connectance
0.088
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°

27,0°C

Annual rain

988mm

Moisture idx (CMI)

-0,48

Runoff

203mm/an

PET

1 915mm

AET

803mm

Mean slope

1,2°

Water table

102cm

Forest

2%

Crops

46%

Urban

4%

Protected

1%

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