Ontologia

HydroBASINS lev08 watershed · #1080859130

Bassin de River Oyi

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 6 administrative regions : Edu, Ifelodun, Ilorin East, Irepodun, Isin +1

Pfafstetter: 14235040

Sub-basin area

2 263,2km²

Upstream area

2 263,3km²

Discharge

30,18m³/s

Mean elev.

284m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger1954 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Lafiagi

    IUCN Not Reported

    Forest Reserve

    104.22 km² overlap

  • Share

    IUCN Not Reported

    Forest Reserve

    78.62 km² overlap

  • Lafiagi Oro

    IUCN Not Reported

    Forest Reserve

    44.37 km² overlap

  • Lower Kaduna-Middle Niger Floodplain

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    38.49 km² overlap

  • Efan

    IUCN Not Reported

    Forest Reserve

    9.03 km² overlap

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

Species present

205 distinct species · 1 139 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 139 obs · 33 cellules
Obs. / cellule
≥ 107
75–106
50–74
31–49
< 31

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

Ecological tissue

Sample of 28 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 River Oyi : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
28
Connectance
0.074
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°

26,7°C

Annual rain

1 197mm

Moisture idx (CMI)

-0,34

Runoff

433mm/an

PET

1 807mm

AET

988mm

Mean slope

2,2°

Water table

183cm

Forest

44%

Crops

40%

Urban

1%

Protected

10%

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