Ontologia

HydroBASINS lev08 watershed · #1080906230

Bassin de Ogun

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 : Atiba, Atisbo, Iseyin, Itesiwaju, Ori-Ire +1

17% lakePfafstetter: 14304270

Sub-basin area

1 412,4km²

Upstream area

5 843km²

Discharge

73,65m³/s

Mean elev.

296m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ogun259 km²

▲ Receives from 2 basins

6 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Odo Ogun

    IUCN Not Reported

    Forest Reserve

    13.65 km² overlap

  • Old Oyo

    IUCN II

    National Park

    0.34 km² overlap

  • Upper Ogun

    IUCN Not Reported

    Forest Reserve

    0.34 km² overlap

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

Species present

210 distinct species · 919 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

919 obs · 35 cellules
Obs. / cellule
≥ 202
53–201
28–52
14–27
< 14

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

Ecological tissue

Sample of 32 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 Ogun : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 31 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
31
Connectance
0.063
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°

26,3°C

Annual rain

1 165mm

Moisture idx (CMI)

-0,34

Runoff

510mm/an

PET

1 754mm

AET

985mm

Mean slope

1,9°

Water table

157cm

Forest

2%

Crops

72%

Urban

2%

Protected

1%

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