Ontologia

HydroBASINS lev08 watershed · #1080722570

Bassin de Dallol Bosso

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 3 administrative regions : Boboye, Dosso, Say

Pfafstetter: 14261010

Sub-basin area

503km²

Upstream area

520 941,9km²

Discharge

22,78m³/s

Mean elev.

200m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger31 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

  • Boboye
    Dosso · Niger
    329.0 km²
    65.7% of basin
  • Dosso
    Dosso · Niger
    171.7 km²
    34.3% of basin
  • Say
    Tillabéry · Niger
    0.4 km²
    0.1% of basin

2 intersecting protected areas

  • Dosso

    IUCN IV

    Partial Fauna Reserve

    501.12 km² overlap

  • Dallol Bosso

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    442.15 km² overlap

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

Species present

68 distinct species · 162 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

162 obs · 8 cellules
Obs. / cellule
≥ 71
71–70
26–70
5–25
< 5

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 de Dallol Bosso : 8 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 7 interactions GloBI sur 4 types (connectance 19.4%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
7
Connectance
0.194
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°

29,0°C

Annual rain

632mm

Moisture idx (CMI)

-0,69

Runoff

87mm/an

PET

2 046mm

AET

533mm

Mean slope

0,4°

Water table

136cm

Forest

0%

Crops

35%

Urban

0%

Protected

30%

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