Ontologia

HydroBASINS lev08 watershed · #1080911010

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 2 administrative regions : Guma, Makurdi

Pfafstetter: 14221705

Sub-basin area

279,6km²

Upstream area

304 550,7km²

Discharge

2 482,25m³/s

Mean elev.

108m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Benue65 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Makurdi Fuel

    IUCN Not Reported

    Forest Reserve

    21.96 km² overlap

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

Species present

173 distinct species · 434 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

434 obs · 8 cellules
Obs. / cellule
≥ 216
216–215
58–215
25–57
< 25

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

Ecological tissue

Sample of 39 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 : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 4.3%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
35
Connectance
0.043
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°

27,1°C

Annual rain

1 320mm

Moisture idx (CMI)

-0,26

Runoff

458mm/an

PET

1 787mm

AET

1 015mm

Mean slope

1,3°

Water table

125cm

Forest

2%

Crops

23%

Urban

26%

Protected

8%

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