Rivière· 116 segments
La Sirba
Crosses 7 administrative regions : Gnagna, Kollo, Komandjoari, Say, Tillabéry +2
Total length
386km
Max discharge
22,1m³/s
Max Strahler
6
Segments matched
116
River geography7 admin regions · 0 communes
7 administrative regions crossed (GADM L2)
1 page = 1 named river (aggregation of 116 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
221 distinct species · 431 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de La Sirba : 2 espèces + 0 bulles famille, 1 interaction GloBI documentées sur 1 type (connectance 100.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
386km
Max discharge
22,1m³/s
Max Strahler
6
Segments matched
116
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.