HydroBASINS lev08 watershed · #7080364050
Bassin de Sioux 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 3 administrative regions : Ashland, Bayfield, Lake Superior
Sub-basin area
1 247km²
Upstream area
1 247,4km²
Discharge
24,65m³/s
Mean elev.
269m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 812.5 km²65.0% of basin
- Lake Superior349.4 km²27.9% of basin
- Ashland88.5 km²7.1% of basin
14 intersecting protected areas
Lake
20.36 km² overlap
Marine Protected Area
6.61 km² overlap
Moquah
IUCN VNatural Area
2.49 km² overlap
Whittlesey Creek
IUCN VNational Wildlife Refuge
1.46 km² overlap
Marine Protected Area
1.45 km² overlap
Reserve Program
0.74 km² overlap
Houghton Falls
IUCN Not AssignedEasement
0.32 km² overlap
DeNuccio
IUCN Not AssignedEasement
0.22 km² overlap
Lake
0.15 km² overlap
5 more protected areassorted by overlap area
Big Ravine
IUCN Not AssignedEasement
0.15 km² overlap
S. Fish Creek
IUCN Not AssignedEasement
0.14 km² overlap
Maloney-Dillenschneider
IUCN Not AssignedEasement
0.04 km² overlap
Big Bay
IUCN Not AssignedState Park
0.01 km² overlap
Natural Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 872 distinct species · 430 224 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Sioux River : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 3 types (connectance 12.5%, filtre Serrano α=0.2). 9 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°
4,3°C
Annual rain
797mm
Moisture idx (CMI)
-0,03
Runoff
660mm/an
PET
826mm
AET
648mm
Mean slope
1,6°
Water table
102cm
Forest
65%
Crops
7%
Urban
1%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)