Ontologia

HydroBASINS lev08 watershed · #1080988100

Bassin de Aua

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 across 2 countries : Akamkpa, Etung, Manyu

Pfafstetter: 13380508

Sub-basin area

727,2km²

Upstream area

727,2km²

Discharge

41,93m³/s

Mean elev.

254m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Cross101 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Cross River

    IUCN II

    National Park

    233.08 km² overlap

  • Oban Group

    IUCN Not Reported

    Forest Reserve

    84.64 km² overlap

  • Oban Group

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    84.64 km² overlap

  • Cross River South

    IUCN Not Reported

    Forest Reserve

    33.18 km² overlap

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

Species present

303 distinct species · 478 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

478 obs · 16 cellules
Obs. / cellule
≥ 106
104–105
32–103
31–31
< 31

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

Ecological tissue

Sample of 37 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 Aua : 33 espèces reliées par 38 interactions GloBI sur 5 types (connectance 5.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
38
Connectance
0.054
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°

25,7°C

Annual rain

2 616mm

Moisture idx (CMI)

0,38

Runoff

1 814mm/an

PET

1 609mm

AET

1 277mm

Mean slope

6,4°

Water table

226cm

Forest

100%

Crops

0%

Urban

0%

Protected

62%

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