Ontologia

HydroBASINS lev08 watershed · #1080949530

Bassin de River Owan

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 : Esan West, Ovia North-East, Owan East, Owan West, Uhunmwonde

Pfafstetter: 14302040

Sub-basin area

1 278,8km²

Upstream area

1 278,8km²

Discharge

43,15m³/s

Mean elev.

171m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ogbesse River758 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Ekiadolor

    IUCN Not Reported

    Forest Reserve

    218.66 km² overlap

  • Owan

    IUCN Not Reported

    Forest Reserve

    76.48 km² overlap

  • Ora-Iuleha-Ozalla

    IUCN Not Reported

    Forest Reserve

    27.06 km² overlap

  • Ivi-Ada-Obi

    IUCN Not Reported

    Forest Reserve

    16.04 km² overlap

  • Ehor

    IUCN Not Reported

    Forest Reserve

    5.66 km² overlap

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

Species present

193 distinct species · 758 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

758 obs · 26 cellules
Obs. / cellule
≥ 160
87–159
30–86
24–29
< 24

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

Ecological tissue

Sample of 20 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 Owan : 17 espèces reliées par 18 interactions GloBI sur 3 types (connectance 9.5%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
18
Connectance
0.095
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°

26,0°C

Annual rain

1 552mm

Moisture idx (CMI)

-0,05

Runoff

1 062mm/an

PET

1 642mm

AET

1 119mm

Mean slope

2,5°

Water table

147cm

Forest

71%

Crops

61%

Urban

5%

Protected

27%

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