Rivière· 28 segments
Middle Fork John Day River
Crosses 1 administrative regions : Grant
Total length
122km
Max discharge
10,7m³/s
Max Strahler
4
Segments matched
28
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- GrantOregon · United States85.4 kmin this dpt
1 intersecting protected areas
Private Conservation Land
1 page = 1 named river (aggregation of 28 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
33 distinct species · 63 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Middle Fork John Day River : 14 espèces reliées par 17 interactions GloBI sur 2 types (connectance 16.2%, filtre Serrano α=0.2). 1 bulle taxonomique (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
122km
Max discharge
10,7m³/s
Max Strahler
4
Segments matched
28
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.