Ruisseau· 50 segments
South Anna River
Crosses 6 administrative regions : Albemarle, Caroline, Goochland, Hanover, Louisa +1
Total length
166km
Max discharge
16,4m³/s
Max Strahler
3
Segments matched
50
River geography6 admin regions · 0 communes
6 administrative regions crossed (GADM L2)
1 page = 1 named river (aggregation of 50 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
131 distinct species · 494 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 South Anna River : 38 espèces reliées par 66 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
166km
Max discharge
16,4m³/s
Max Strahler
3
Segments matched
50
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.