Ontologia

HydroBASINS lev08 watershed · #1080912850

Bassin de Okpara

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 4 administrative regions across 2 countries : Atisbo, Imeko-Afon, Iwajowa, Savè

Pfafstetter: 14306610

Sub-basin area

1 122,1km²

Upstream area

11 529,5km²

Discharge

41,17m³/s

Mean elev.

170m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ouémé2658 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Okpara

    IUCN Not Reported

    Forest Reserve

    307.95 km² overlap

  • Opara

    IUCN Not Reported

    Game Reserve

    242.92 km² overlap

  • Meko

    IUCN Not Reported

    Forest Reserve

    120.03 km² overlap

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

Species present

254 distinct species · 1 364 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 364 obs · 26 cellules
Obs. / cellule
≥ 288
139–287
49–138
30–48
< 30

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

Ecological tissue

Sample of 36 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 Okpara : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 5.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
36
Connectance
0.054
Patrimoniales
2
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°

27,3°C

Annual rain

1 129mm

Moisture idx (CMI)

-0,38

Runoff

208mm/an

PET

1 833mm

AET

954mm

Mean slope

1,6°

Water table

172cm

Forest

54%

Crops

57%

Urban

0%

Protected

38%

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