Ontologia

HydroBASINS lev08 watershed · #1080975380

Bassin de River Nsiki

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 6 administrative regions : Anambra East, Dunukofia, Njikoka, Onitsha North, Oshimili South +1

Pfafstetter: 14210019

Sub-basin area

115,2km²

Upstream area

2 095 375,3km²

Discharge

6 463,21m³/s

Mean elev.

106m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger1756 km²

▲ Receives from 2 basins

6 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Nkisi River

    IUCN Not Reported

    Forest Reserve

    2.54 km² overlap

  • Akpaka

    IUCN Not Reported

    Forest Reserve

    2.00 km² overlap

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

Species present

223 distinct species · 380 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

380 obs · 4 cellules
Obs. / cellule
≥ 201
201–200
164–200
164–163
< 164

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

Ecological tissue

Sample of 50 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 Nsiki : 44 espèces reliées par 43 interactions GloBI sur 3 types (connectance 3.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
50
Interactions affichées
43
Connectance
0.035
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°

26,9°C

Annual rain

1 818mm

Moisture idx (CMI)

0,11

Runoff

1 218mm/an

PET

1 623mm

AET

1 144mm

Mean slope

2,9°

Water table

147cm

Forest

12%

Crops

46%

Urban

82%

Protected

4%

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