Ontologia

HydroBASINS lev08 watershed · #1080746880

Bassin de gnongongui

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 : Gaoual, Lélouma, Mali

Pfafstetter: 14578080

Sub-basin area

1 504,6km²

Upstream area

1 504,7km²

Discharge

18,47m³/s

Mean elev.

498m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Koumba1493 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Nialama (or Nyalama)

    IUCN Not Reported

    Classified Forest

    61.18 km² overlap

  • Gambie-Koulountou

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    50.55 km² overlap

  • N'Guidou

    IUCN Not Reported

    Classified Forest

    1.86 km² overlap

  • Mt. Loura

    IUCN Not Reported

    Classified Forest

    0.43 km² overlap

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

Species present

79 distinct species · 143 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

143 obs · 8 cellules
Obs. / cellule
≥ 119
119–118
6–118
4–5
< 4

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

Ecological tissue

Sample of 2 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 gnongongui : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
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°

25,4°C

Annual rain

1 584mm

Moisture idx (CMI)

-0,13

Runoff

386mm/an

PET

1 821mm

AET

962mm

Mean slope

6,9°

Water table

346cm

Forest

53%

Crops

6%

Urban

1%

Protected

4%

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