HydroBASINS lev08 watershed · #7080380570
Bassin de Selway River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Idaho
Sub-basin area
563,3km²
Upstream area
5 192,6km²
Discharge
73,41m³/s
Mean elev.
1 311m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de East Fork Horse Creek615 km²
- Bassin de Selway River529 km²
1 dept-equivalent regions (GADM L2)
- IdahoIdaho · United States564.7 km²100.0% of basin
5 intersecting protected areas
Selway-Bitterroot
IUCN IbWilderness
49.26 km² overlap
O'Hara Creek
IUCN IaResearch Natural Area
28.14 km² overlap
Wild and Scenic River
26.55 km² overlap
Streamside Zone Withdrawal
1.18 km² overlap
Upper Newsome Creek
IUCN IaResearch Natural Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 109 distinct species · 6 771 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Bassin de Selway River : 34 espèces reliées par 91 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
4,7°C
Annual rain
711mm
Moisture idx (CMI)
-0,24
Runoff
563mm/an
PET
942mm
AET
576mm
Mean slope
19,9°
Water table
711cm
Forest
99%
Crops
0%
Urban
0%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)