HydroBASINS lev08 watershed · #2080031500
Bassin · #2080031500
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 2 administrative regions : Tierp, Älvkarleby
Sub-basin area
92,9km²
Upstream area
92,9km²
Discharge
1,07m³/s
Mean elev.
15m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- ÄlvkarlebyUppsala · Sweden63.6 km²68.2% of basin
- 20.1 km²21.5% of basin
21 intersecting protected areas
2002408 Billudden
IUCN IaNature Reserve
3.35 km² overlap
Billudden
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.27 km² overlap
Billudden
IUCN IaNatura 2000 SCI
3.27 km² overlap
Långsandsörarna
IUCN Not AssignedNatura 2000 SCI
2.46 km² overlap
Långsandsörarna
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.46 km² overlap
Gårdskärskusten
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.95 km² overlap
Gårdskärskusten
IUCN Not AssignedNatura 2000 SCI
1.95 km² overlap
2048641 Mararna
IUCN IaNature Reserve
0.98 km² overlap
2051078 Komossen
IUCN IaNature Reserve
0.59 km² overlap
12 more protected areassorted by overlap area
Mararna
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.41 km² overlap
Mararna
IUCN IaNatura 2000 SCI
0.41 km² overlap
Komossen
IUCN IaNatura 2000 SCI
0.28 km² overlap
Komossen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.28 km² overlap
2027009 Bölsjön
IUCN IaNature Reserve
0.07 km² overlap
SK 1119-2002
IUCN IaHabitat Protection Area
0.06 km² overlap
SK 522-2014
IUCN IVNature conservation agreement, Swedish Forest Agency
0.05 km² overlap
SK 449-2016
IUCN IaHabitat Protection Area
0.03 km² overlap
SK 507-2014
IUCN IaHabitat Protection Area
0.02 km² overlap
2056363 Karl-Jansrabben-skären
IUCN Not AssignedWildlife and Plant Sanctuary
0.00 km² overlap
Komossängen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Komossängen
IUCN Not AssignedNatura 2000 SCI
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 832 distinct species · 75 969 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 · #2080031500 : 24 espèces reliées par 75 interactions GloBI sur 6 types (connectance 12.6%, filtre Serrano α=0.2). 11 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°
5,1°C
Annual rain
596mm
Moisture idx (CMI)
0,06
Runoff
331mm/an
PET
561mm
AET
417mm
Mean slope
2,1°
Water table
92cm
Forest
93%
Crops
1%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)