HydroBASINS lev08 watershed · #2080225670
Bassin de Ulvåa
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 6 administrative regions across 2 countries : Elverum, Grue, Torsby, Trysil, Våler +1
Sub-basin area
1 648,1km²
Upstream area
1 648,1km²
Discharge
22,37m³/s
Mean elev.
403m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 619.6 km²37.4% of basin
- 372.0 km²22.4% of basin
- 344.0 km²20.7% of basin
- 307.1 km²18.5% of basin
- 15.0 km²0.9% of basin
- 0.1 km²0.0% of basin
30 intersecting protected areas
2044331 Märramyren
IUCN IbNature Reserve
13.70 km² overlap
Märramyren
IUCN Not ReportedSpecial Protection Area (Birds Directive)
11.86 km² overlap
Märramyren
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.86 km² overlap
Märramyren
IUCN IbNatura 2000 SPA
11.86 km² overlap
Märramyren
IUCN IbNatura 2000 SCI
11.86 km² overlap
Ulvåkjølen
IUCN IaNature Reserve
7.27 km² overlap
Ulvåkjølen
IUCN Not ReportedEmerald Network
7.27 km² overlap
Hemberget
IUCN IaNature Reserve
6.40 km² overlap
Røtkjølen
IUCN Not ReportedEmerald Network
5.38 km² overlap
21 more protected areassorted by overlap area
Røtkjølen
IUCN IaNature Reserve
5.36 km² overlap
Västersjön
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.83 km² overlap
Västersjön
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.83 km² overlap
Västersjön
IUCN Not AssignedNatura 2000 SCI
2.83 km² overlap
Västersjön
IUCN Not AssignedNatura 2000 SPA
2.83 km² overlap
2024429 Dundern
IUCN IaNature Reserve
2.50 km² overlap
Hestberget
IUCN IaNature Reserve
2.19 km² overlap
Lindberget
IUCN IaNature Reserve
1.70 km² overlap
2024009 Björnhultet
IUCN IaNature Reserve
1.69 km² overlap
Brenninga
IUCN IaNature Reserve
1.59 km² overlap
Glorvikmyra
IUCN IaNature Reserve
1.50 km² overlap
Glorvikmyra
IUCN Not ReportedEmerald Network
1.50 km² overlap
Dundern
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.49 km² overlap
Dundern
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.49 km² overlap
Dundern
IUCN IaNatura 2000 SPA
1.49 km² overlap
Dundern
IUCN IaNatura 2000 SCI
1.49 km² overlap
Kynndalsmyrene
IUCN IaNature Reserve
1.28 km² overlap
Kynndalsmyrene
IUCN Not ReportedEmerald Network
1.28 km² overlap
Buberget
IUCN IaNature Reserve
1.27 km² overlap
Kynneggene
IUCN IaNature Reserve
1.05 km² overlap
2005555 Skarp-Juberget
IUCN IaNature Reserve
1.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 325 distinct species · 70 034 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Ulvåa : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 6 types (connectance 11.6%, 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°
2,8°C
Annual rain
668mm
Moisture idx (CMI)
0,22
Runoff
428mm/an
PET
520mm
AET
433mm
Mean slope
4,7°
Water table
308cm
Forest
90%
Crops
2%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)