Ontologia

HydroBASINS lev08 watershed · #1080981410

Bassin de Okwo

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 3 administrative regions : Akamkpa, Obubra, Yakurr

Pfafstetter: 13380302

Sub-basin area

844,3km²

Upstream area

844,4km²

Discharge

42,12m³/s

Mean elev.

116m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Cross331 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Cross River South

    IUCN Not Reported

    Forest Reserve

    228.92 km² overlap

  • Cross River

    IUCN II

    National Park

    44.44 km² overlap

  • Oban Group

    IUCN Not Reported

    Forest Reserve

    9.49 km² overlap

  • Oban Group

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    9.49 km² overlap

  • Agoi

    IUCN Not Reported

    Forest Reserve

    0.00 km² overlap

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

Species present

200 distinct species · 487 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

487 obs · 15 cellules
Obs. / cellule
≥ 181
109–180
34–108
2–33
< 2

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

Ecological tissue

Sample of 11 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 Okwo : 8 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 2 types (connectance 17.9%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
13
Interactions affichées
14
Connectance
0.179
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°

26,8°C

Annual rain

2 225mm

Moisture idx (CMI)

0,27

Runoff

1 572mm/an

PET

1 630mm

AET

1 227mm

Mean slope

2,8°

Water table

108cm

Forest

55%

Crops

43%

Urban

1%

Protected

33%

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