Ontologia

HydroBASINS lev08 watershed · #1080870480

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 4 administrative regions : Katcha, Lavun, Lokoja, Pategi

3% lakePfafstetter: 14233090

Sub-basin area

960,8km²

Upstream area

1 692 434,5km²

Discharge

2 481,61m³/s

Mean elev.

87m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger71 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

80 distinct species · 214 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

214 obs · 6 cellules
Obs. / cellule
≥ 67
67–66
65–66
62–64
< 62

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

Ecological tissue

Sample of 16 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 dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2).

Espèces affichées
16
Interactions affichées
12
Connectance
0.100
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°

28,0°C

Annual rain

1 170mm

Moisture idx (CMI)

-0,37

Runoff

431mm/an

PET

1 862mm

AET

942mm

Mean slope

1,1°

Water table

111cm

Forest

15%

Crops

23%

Urban

7%

Protected

3%

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