Ontologia

HydroBASINS lev08 watershed · #1080668640

Bassin · #1080668640

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 : Diffa, N'Guigmi

Endorheic 564% lakePfafstetter: 16244300

Sub-basin area

1 407,1km²

Upstream area

35 299km²

Discharge

0m³/s

Mean elev.

288m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #108067033023 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

  • N'Guigmi
    Diffa · Niger
    1234.2 km²
    88.0% of basin
  • Diffa
    Diffa · Niger
    167.7 km²
    12.0% of basin

1 intersecting protected areas

  • Lac Tchad

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    1056.96 km² overlap

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

Species present

92 distinct species · 161 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

161 obs · 13 cellules
Obs. / cellule
≥ 45
42–44
16–41
6–15
< 6

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

Ecological tissue

Sample of 9 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 · #1080668640 : 8 espèces reliées par 8 interactions GloBI sur 2 types (connectance 22.2%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
8
Connectance
0.222
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°

27,3°C

Annual rain

212mm

Moisture idx (CMI)

-0,90

Runoff

12mm/an

PET

2 101mm

AET

176mm

Mean slope

0,2°

Water table

44cm

Forest

0%

Crops

3%

Urban

0%

Protected

0%

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