Ontologia

HydroBASINS lev08 watershed · #1080022130

Bassin de New Calabar River

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 7 administrative regions : Degema, Emuoha, Etche, Ikwerre, Obio/Akpor +2

Pfafstetter: 14100056

Sub-basin area

970,6km²

Upstream area

970,6km²

Discharge

46,67m³/s

Mean elev.

29m

Administrative coverage

7 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Otamiri River

    IUCN Not Reported

    Forest Reserve

    69.15 km² overlap

  • Sambrero

    IUCN Not Reported

    Forest Reserve

    61.29 km² overlap

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

Species present

410 distinct species · 1 528 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 528 obs · 18 cellules
Obs. / cellule
≥ 278
276–277
82–275
42–81
< 42

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 New Calabar River : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 4.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
28
Connectance
0.044
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°

26,4°C

Annual rain

2 402mm

Moisture idx (CMI)

0,35

Runoff

1 518mm/an

PET

1 565mm

AET

1 260mm

Mean slope

0,3°

Water table

8cm

Forest

68%

Crops

40%

Urban

21%

Protected

14%

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