HydroBASINS lev08 watershed · #7080409420
Bassin de Apple 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 : Barron, Polk, Saint Croix
Sub-basin area
1 518km²
Upstream area
1 518,1km²
Discharge
11,61m³/s
Mean elev.
343m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Polk1283.5 km²84.4% of basin
- 153.2 km²10.1% of basin
- 84.8 km²5.6% of basin
19 intersecting protected areas
Rice Beds Creek
IUCN VWildlife Area
13.00 km² overlap
Loon Lake
IUCN VWildlife Area
10.61 km² overlap
Joel Marsh
IUCN VWildlife Area
5.30 km² overlap
Reserve Program
2.20 km² overlap
Western Prairie Habitat Restorat
IUCN Not AssignedConservation Easement
1.44 km² overlap
St Croix Islands
IUCN VWildlife Area
0.90 km² overlap
Balsam Branch
IUCN VWildlife Area
0.70 km² overlap
Peters Marsh
IUCN VWildlife Area
0.47 km² overlap
Scattered Wildlife
IUCN VWildlife Area
0.46 km² overlap
10 more protected areassorted by overlap area
Nature Preserve
0.40 km² overlap
La Grandeur
IUCN VNatural Area
0.22 km² overlap
Reserve Program
0.21 km² overlap
Wildlife Habitat Management Area
0.17 km² overlap
Farm Service Agency Interest Of Wi
IUCN Not AssignedConservation Easement
0.15 km² overlap
Statewide Non-Point Easement Prog.
IUCN Not AssignedEasement
0.14 km² overlap
Natural Area
0.01 km² overlap
Extensive Wl Habitat
IUCN Not AssignedConservation Easement
0.00 km² overlap
Waterfowl Production Area
0.00 km² overlap
Rem-Long
IUCN Not AssignedLake
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 895 distinct species · 263 717 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Apple River : 26 espèces reliées par 80 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 10 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°
5,8°C
Annual rain
799mm
Moisture idx (CMI)
-0,11
Runoff
250mm/an
PET
900mm
AET
675mm
Mean slope
1,4°
Water table
69cm
Forest
55%
Crops
35%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)