Ontologia

HydroBASINS lev08 watershed · #1080935680

Bassin de Ona

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 11 administrative regions : Akinyele, Egbeda, Ibadan North, Ibadan North-East, Ibadan North-West +6

2% lakePfafstetter: 14304409

Sub-basin area

792,1km²

Upstream area

792,1km²

Discharge

17,05m³/s

Mean elev.

201m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Omi59 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

11 dept-equivalent regions (GADM L2)

3 more

3 intersecting protected areas

  • Gambari

    IUCN Not Reported

    Forest Reserve

    87.43 km² overlap

  • Eleiyele

    IUCN Not Reported

    Forest Reserve

    6.81 km² overlap

  • Ibadan

    IUCN Not Reported

    Forest Reserve

    3.27 km² overlap

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

Species present

2 349 distinct species · 20 968 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

20 968 obs · 26 cellules
Obs. / cellule
≥ 5 813
3 395–5 812
654–3 394
197–653
< 197

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

Ecological tissue

Sample of 25 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 Ona : 22 espèces reliées par 20 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
20
Connectance
0.067
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°

26,5°C

Annual rain

1 307mm

Moisture idx (CMI)

-0,20

Runoff

678mm/an

PET

1 644mm

AET

1 072mm

Mean slope

2,3°

Water table

110cm

Forest

26%

Crops

55%

Urban

53%

Protected

12%

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