Ruisseau· 6 segments
Marsh Run
Crosses 2 administrative regions : Jefferson, Washington
Total length
69km
Max discharge
1,3m³/s
Max Strahler
2
Segments matched
6
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- WashingtonMaryland · United States13.7 kmin this dpt
- JeffersonWest Virginia · United States2.2 kmin this dpt
2 intersecting protected areas
National Historical Park
Washington County, PA easem
IUCN Not AssignedConservation Easement
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
788 distinct species · 20 941 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Marsh Run : 33 espèces reliées par 90 interactions GloBI sur 4 types (connectance 8.7%, filtre Serrano α=0.2). 13 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
69km
Max discharge
1,3m³/s
Max Strahler
2
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.