Ontologia

HydroBASINS lev08 watershed · #1080909890

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 5 administrative regions : Adavi, Kabba/Bunu, Kogi, Lokoja, Okehi

Pfafstetter: 14231000

Sub-basin area

2 639,8km²

Upstream area

1 730 224,9km²

Discharge

2 922,67m³/s

Mean elev.

234m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger490 km²

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

11 intersecting protected areas

  • Bunu

    IUCN Not Reported

    Forest Reserve

    234.37 km² overlap

  • Agbaja

    IUCN Not Reported

    Forest Reserve

    147.46 km² overlap

  • Oinye

    IUCN Not Reported

    Forest Reserve

    99.50 km² overlap

  • Osara

    IUCN Not Reported

    Forest Reserve

    84.04 km² overlap

  • Swamp

    IUCN Not Reported

    Forest Reserve

    60.07 km² overlap

  • Adankolo

    IUCN Not Reported

    Forest Reserve

    29.87 km² overlap

  • Kakanda Hills

    IUCN Not Reported

    Forest Reserve

    27.03 km² overlap

  • Adaki

    IUCN Not Reported

    Forest Reserve

    13.13 km² overlap

  • Chokochoko

    IUCN Not Reported

    Forest Reserve

    10.42 km² overlap

2 more protected areas

  • Olle

    IUCN Not Reported

    Forest Reserve

    6.84 km² overlap

  • Gabo Escarpment

    IUCN Not Reported

    Forest Reserve

    6.34 km² overlap

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

Species present

589 distinct species · 2 729 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 729 obs · 36 cellules
Obs. / cellule
≥ 1 642
91–1 641
26–90
12–25
< 12

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

Ecological tissue

Sample of 24 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 : 20 espèces reliées par 19 interactions GloBI sur 2 types (connectance 6.3%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
19
Connectance
0.063
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°

26,3°C

Annual rain

1 198mm

Moisture idx (CMI)

-0,31

Runoff

398mm/an

PET

1 748mm

AET

977mm

Mean slope

3,6°

Water table

240cm

Forest

82%

Crops

64%

Urban

5%

Protected

27%

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