Ontologia

HydroBASINS lev08 watershed · #1080892240

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 : Kabba/Bunu, Lapai, Lokoja

Pfafstetter: 14233020

Sub-basin area

919,2km²

Upstream area

919,2km²

Discharge

11,73m³/s

Mean elev.

273m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger24 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Bunu

    IUCN Not Reported

    Forest Reserve

    210.94 km² overlap

  • Kakanda Hills

    IUCN Not Reported

    Forest Reserve

    126.23 km² overlap

  • Olle

    IUCN Not Reported

    Forest Reserve

    39.39 km² overlap

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

Species present

97 distinct species · 238 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

238 obs · 8 cellules
Obs. / cellule
≥ 57
57–56
31–56
29–30
< 29

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

Ecological tissue

Sample of 14 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 : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 3 types (connectance 12.1%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
11
Connectance
0.121
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°

26,2°C

Annual rain

1 195mm

Moisture idx (CMI)

-0,32

Runoff

404mm/an

PET

1 754mm

AET

973mm

Mean slope

4,0°

Water table

246cm

Forest

95%

Crops

80%

Urban

0%

Protected

41%

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