Ontologia

Ruisseau· 10 segments

Ngalanka

Crosses 2 administrative regions : Podor, R'Kiz

ruisseau

Total length

64km

Max discharge

0,3m³/s

Max Strahler

3

Segments matched

10

River geography2 admin regions · 0 communes

Parent watershed

hybas-1080568220747 km²

2 administrative regions crossed (GADM L2)

  • Podor
    Saint-Louis · Senegal
    100.5 km
    in this dpt
  • R'Kiz
    Trarza · Mauritania
    0.0 km
    in this dpt

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

78 distinct species · 285 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 22 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 Ngalanka : 19 espèces reliées par 20 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
20
Connectance
0.087
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

64km

Max discharge

0,3m³/s

Max Strahler

3

Segments matched

10

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.