Ontologia

HydroBASINS lev08 watershed · #1080946530

Bassin de River Ala

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 : Akure North, Akure South, Idanre, Ovia North-East, Owo

Pfafstetter: 14302024

Sub-basin area

583,2km²

Upstream area

583,2km²

Discharge

16,61m³/s

Mean elev.

274m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de River Ala5 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Akure-Ofosu

    IUCN Not Reported

    Forest Reserve

    115.33 km² overlap

  • Ala

    IUCN Not Reported

    Forest Reserve

    87.74 km² overlap

  • Ohosu

    IUCN Not Reported

    Forest Reserve

    20.81 km² overlap

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

Species present

200 distinct species · 3 811 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 811 obs · 15 cellules
Obs. / cellule
≥ 2 968
184–2 967
95–183
71–94
< 71

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 Ala : 22 espèces reliées par 26 interactions GloBI sur 3 types (connectance 6.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
26
Connectance
0.069
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°

25,6°C

Annual rain

1 498mm

Moisture idx (CMI)

-0,08

Runoff

898mm/an

PET

1 627mm

AET

1 116mm

Mean slope

2,4°

Water table

98cm

Forest

48%

Crops

46%

Urban

14%

Protected

39%

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