Ruisseau· 3 segments
Big Run
Crosses 5 administrative regions : Columbia, Lycoming, Northumberland, Schuylkill, Sullivan
Total length
349km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
3
River geography5 admin regions · 0 communes
5 administrative regions crossed (GADM L2)
- SchuylkillPennsylvania · United States3.5 kmin this dpt
- LycomingPennsylvania · United States2.9 kmin this dpt
- SullivanPennsylvania · United States1.4 kmin this dpt
- ColumbiaPennsylvania · United States0.2 kmin this dpt
- NorthumberlandPennsylvania · United States0.0 kmin this dpt
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
364 distinct species · 928 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Big Run : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 133 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 18 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
349km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.