Ontologia

HydroBASINS lev08 watershed · #1080879390

Bassin · #1080879390

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 4 administrative regions : Karu, Keffi, Kokona, Nasarawa

Pfafstetter: 14221270

Sub-basin area

930,3km²

Upstream area

3 377,7km²

Discharge

40,49m³/s

Mean elev.

300m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #1080889890999 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Keffi

    IUCN Not Reported

    Forest Reserve

    3.60 km² overlap

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

Species present

218 distinct species · 1 077 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 077 obs · 21 cellules
Obs. / cellule
≥ 218
114–217
83–113
18–82
< 18

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 · #1080879390 : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 33 interactions GloBI sur 4 types (connectance 5.2%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
33
Connectance
0.052
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°

26,6°C

Annual rain

1 383mm

Moisture idx (CMI)

-0,23

Runoff

427mm/an

PET

1 805mm

AET

987mm

Mean slope

2,0°

Water table

150cm

Forest

4%

Crops

23%

Urban

5%

Protected

45%

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