Ontologia

HydroBASINS lev08 watershed · #1080917960

Bassin de Ero

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, Ajaokuta, Kabba/Bunu, Lokoja, Okehi

2% lakePfafstetter: 14210080

Sub-basin area

1 890,2km²

Upstream area

1 890,2km²

Discharge

28,94m³/s

Mean elev.

233m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger363 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

7 intersecting protected areas

  • Osara

    IUCN Not Reported

    Forest Reserve

    291.75 km² overlap

  • Chokochoko

    IUCN Not Reported

    Forest Reserve

    162.87 km² overlap

  • Ajaokuta

    IUCN Not Reported

    Forest Reserve

    55.32 km² overlap

  • Otete

    IUCN Not Reported

    Forest Reserve

    6.25 km² overlap

  • Okene catchment area

    IUCN Not Reported

    Forest Reserve

    2.44 km² overlap

  • Okene waterworks

    IUCN Not Reported

    Forest Reserve

    2.14 km² overlap

  • Oinye

    IUCN Not Reported

    Forest Reserve

    0.81 km² overlap

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

Species present

153 distinct species · 699 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

699 obs · 29 cellules
Obs. / cellule
≥ 90
72–89
28–71
17–27
< 17

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

Ecological tissue

Sample of 26 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 de Ero : 24 espèces reliées par 19 interactions GloBI sur 3 types (connectance 5.8%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
19
Connectance
0.059
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°

26,0°C

Annual rain

1 207mm

Moisture idx (CMI)

-0,30

Runoff

483mm/an

PET

1 714mm

AET

994mm

Mean slope

3,3°

Water table

201cm

Forest

61%

Crops

53%

Urban

6%

Protected

28%

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