Ontologia

HydroBASINS lev08 watershed · #1080941720

Bassin de Owenna

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 7 administrative regions : Atakumosa West, Ife Central, Ife East, Ife North, Ife South +2

Pfafstetter: 14304642

Sub-basin area

949,2km²

Upstream area

949,5km²

Discharge

20,88m³/s

Mean elev.

228m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sasa629 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Shasha

    IUCN Not Reported

    Forest Reserve

    193.03 km² overlap

  • Omo

    IUCN Not Reported

    Forest Reserve

    33.87 km² overlap

  • Ife

    IUCN Not Reported

    Forest Reserve

    2.08 km² overlap

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

Species present

363 distinct species · 2 305 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 305 obs · 28 cellules
Obs. / cellule
≥ 899
137–898
105–136
23–104
< 23

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

Ecological tissue

Sample of 31 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 Owenna : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 31 interactions GloBI sur 2 types (connectance 6.7%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
31
Connectance
0.067
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 439mm

Moisture idx (CMI)

-0,12

Runoff

704mm/an

PET

1 632mm

AET

1 103mm

Mean slope

2,7°

Water table

126cm

Forest

21%

Crops

26%

Urban

10%

Protected

24%

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