Ontologia

HydroBASINS lev08 watershed · #1080938540

Bassin · #1080938540

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 8 administrative regions : Ankpa, Igalamela-Odolu, Igbo-eze North, Igbo-eze South, Nsukka +3

Pfafstetter: 14210028

Sub-basin area

1 912,7km²

Upstream area

1 912,7km²

Discharge

47,31m³/s

Mean elev.

287m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Anambra1766 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

8 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Adoru

    IUCN Not Reported

    Forest Reserve

    26.10 km² overlap

  • Acharane

    IUCN Not Reported

    Forest Reserve

    6.52 km² overlap

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

Species present

212 distinct species · 1 231 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 231 obs · 36 cellules
Obs. / cellule
≥ 170
90–169
52–89
26–51
< 26

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

Ecological tissue

Sample of 25 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 · #1080938540 : 21 espèces reliées par 20 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
20
Connectance
0.067
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

1 427mm

Moisture idx (CMI)

-0,14

Runoff

754mm/an

PET

1 659mm

AET

1 055mm

Mean slope

3,1°

Water table

213cm

Forest

66%

Crops

71%

Urban

3%

Protected

2%

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