Ontologia

HydroBASINS lev08 watershed · #1080831730

Bassin de Gaji 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 1 administrative regions : Alkaleri

Pfafstetter: 14227450

Sub-basin area

664,9km²

Upstream area

7 424,2km²

Discharge

41,33m³/s

Mean elev.

363m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Yankari

    IUCN II

    Forest Reserve

    662.17 km² overlap

  • Yankari

    IUCN IV

    Game Reserve

    650.31 km² overlap

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

Species present

1 031 distinct species · 11 802 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 802 obs · 19 cellules
Obs. / cellule
≥ 5 014
2 474–5 013
336–2 473
144–335
< 144

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

Ecological tissue

Sample of 31 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 Gaji River : 27 espèces reliées par 29 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
29
Connectance
0.062
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°

26,4°C

Annual rain

982mm

Moisture idx (CMI)

-0,49

Runoff

189mm/an

PET

1 938mm

AET

814mm

Mean slope

1,3°

Water table

148cm

Forest

7%

Crops

26%

Urban

0%

Protected

100%

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