Ontologia

HydroBASINS lev08 watershed · #1080688720

Bassin de Gagere

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 : Birnin-Magaji/Kiyaw, Bungudu, Isa, Kaura Namoda, Maradun +2

2% lakePfafstetter: 14246703

Sub-basin area

2 745,7km²

Upstream area

7 820,9km²

Discharge

29,74m³/s

Mean elev.

394m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Gagere66 km²

▲ Receives from 2 basins

7 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Illela

    IUCN Not Reported

    Forest Reserve

    165.42 km² overlap

  • Maradun

    IUCN Not Reported

    Forest Reserve

    154.12 km² overlap

  • Zamfara

    IUCN Not Reported

    Forest Reserve

    0.10 km² overlap

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

Species present

86 distinct species · 410 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

410 obs · 20 cellules
Obs. / cellule
≥ 62
48–61
29–47
22–28
< 22

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

Ecological tissue

Sample of 21 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 Gagere : 17 espèces reliées par 18 interactions GloBI sur 3 types (connectance 8.6%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
18
Connectance
0.086
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°

26,9°C

Annual rain

681mm

Moisture idx (CMI)

-0,66

Runoff

84mm/an

PET

2 007mm

AET

574mm

Mean slope

0,7°

Water table

134cm

Forest

0%

Crops

58%

Urban

8%

Protected

12%

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