HydroBASINS lev08 watershed · #2080220790
Bassin de Höljan
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 4 administrative regions across 2 countries : Elverum, Torsby, Trysil, Våler
Sub-basin area
277,1km²
Upstream area
277,1km²
Discharge
3,7m³/s
Mean elev.
453m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 182.0 km²65.3% of basin
- 78.6 km²28.2% of basin
- 10.2 km²3.7% of basin
- 7.9 km²2.8% of basin
30 intersecting protected areas
Västersjön
IUCN Not ReportedSpecial Protection Area (Birds Directive)
12.76 km² overlap
Västersjön
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.76 km² overlap
Västersjön
IUCN Not AssignedNatura 2000 SCI
12.76 km² overlap
Västersjön
IUCN Not AssignedNatura 2000 SPA
12.76 km² overlap
Skjeftkjølen
IUCN IaNature Reserve
8.26 km² overlap
2044331 Märramyren
IUCN IbNature Reserve
6.57 km² overlap
Märramyren
IUCN IbNatura 2000 SPA
5.66 km² overlap
Märramyren
IUCN IbNatura 2000 SCI
5.66 km² overlap
Märramyren
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.66 km² overlap
21 more protected areassorted by overlap area
Märramyren
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.66 km² overlap
Skjeftkjølen og Rysjøen
IUCN Not ReportedEmerald Network
5.32 km² overlap
Rysjøen
IUCN Not ReportedZoological Protection of Species
3.61 km² overlap
Regnåsen og Hisåsen
IUCN IaNature Reserve
3.30 km² overlap
2024009 Björnhultet
IUCN IaNature Reserve
3.20 km² overlap
Nature Reserve
2.84 km² overlap
2049538 Päggonätto
IUCN IaNature Reserve
2.57 km² overlap
Päggonätto
IUCN IaNatura 2000 SCI
1.87 km² overlap
Päggonätto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.87 km² overlap
SK 521-2018
IUCN IVNature conservation agreement
1.16 km² overlap
2002118 Höljberget
IUCN IaNature Reserve
0.70 km² overlap
Höljberget
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.70 km² overlap
Höljberget
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.70 km² overlap
Höljberget
IUCN IaNatura 2000 SCI
0.70 km² overlap
Höljberget
IUCN IaNatura 2000 SPA
0.70 km² overlap
Buberget
IUCN IaNature Reserve
0.55 km² overlap
2005513 Malbäckskölen
IUCN IaNature Reserve
0.44 km² overlap
Höljan
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.40 km² overlap
Höljan
IUCN IaNatura 2000 SCI
0.40 km² overlap
2004561 Fjärhanaskogen
IUCN IaNature Reserve
0.24 km² overlap
SK 711-2002
IUCN IaHabitat Protection Area
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 759 distinct species · 32 454 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Höljan : 21 espèces reliées par 87 interactions GloBI sur 5 types (connectance 16.5%, 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°
2,5°C
Annual rain
659mm
Moisture idx (CMI)
0,22
Runoff
421mm/an
PET
512mm
AET
429mm
Mean slope
4,4°
Water table
322cm
Forest
85%
Crops
0%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)