Ontologia

HydroBASINS lev08 watershed · #1080840700

Bassin de Benue

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 5 administrative regions : Demsa, Fufore, Gombi, Yola North, Yola South

7% lakePfafstetter: 14228330

Sub-basin area

771,2km²

Upstream area

106 175,1km²

Discharge

637,72m³/s

Mean elev.

215m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Benue1 km²

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Bagele Hill

    IUCN Not Reported

    Forest Reserve

    72.68 km² overlap

  • Girei

    IUCN Not Reported

    Forest Reserve

    68.93 km² overlap

  • Namtari

    IUCN Not Reported

    Forest Reserve

    50.52 km² overlap

  • Lainde

    IUCN Not Reported

    Forest Reserve

    1.42 km² overlap

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

Species present

253 distinct species · 1 400 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 400 obs · 14 cellules
Obs. / cellule
≥ 737
262–736
62–261
50–61
< 50

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

Ecological tissue

Sample of 28 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 Benue : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
27
Connectance
0.071
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°

27,7°C

Annual rain

930mm

Moisture idx (CMI)

-0,53

Runoff

162mm/an

PET

1 973mm

AET

785mm

Mean slope

1,3°

Water table

150cm

Forest

0%

Crops

24%

Urban

17%

Protected

25%

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