HydroBASINS lev08 watershed · #2080207710
Bassin de Atna
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 9 administrative regions : Alvdal, Dovre, Folldal, Nord-Fron, Rendalen +4
Sub-basin area
1 749,3km²
Upstream area
1 749,5km²
Discharge
26,82m³/s
Mean elev.
1 074m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- 727.8 km²41.4% of basin
- 446.4 km²25.4% of basin
- 247.9 km²14.1% of basin
- 115.0 km²6.5% of basin
- 76.6 km²4.4% of basin
- 61.8 km²3.5% of basin
- 37.0 km²2.1% of basin
- 29.7 km²1.7% of basin
1 moreFull L2 list
- Alvdal17.6 km² · 1.0%
24 intersecting protected areas
Rondane med Grimsdalen, Frydalen og Dørålen
IUCN Not ReportedEmerald Network
700.16 km² overlap
Rondane
IUCN IINational Park
599.24 km² overlap
Dovre
IUCN Not ReportedEmerald Network
96.40 km² overlap
Dovre
IUCN IINational Park
94.32 km² overlap
Grimsdalen
IUCN VProtected Landscape
63.62 km² overlap
Ledsageren
IUCN IaNature Reserve
23.52 km² overlap
Dørålen
IUCN VProtected Landscape
15.84 km² overlap
Myldingi
IUCN IaNature Reserve
12.74 km² overlap
Hesjemarka
IUCN Not ReportedEmerald Network
6.66 km² overlap
15 more protected areassorted by overlap area
Hesjemarka
IUCN IaNature Reserve
6.66 km² overlap
Frekmyr
IUCN IaNature Reserve
5.83 km² overlap
Atnsjømyrene
IUCN IaWetland of International Importance (Ramsar Site)
5.32 km² overlap
Atnsjømyrene
IUCN IaNature Reserve
5.32 km² overlap
Helakmyrene
IUCN IaNature Reserve
4.58 km² overlap
Setningen
IUCN IaNature Reserve
4.58 km² overlap
Skardseterlia
IUCN IaNature Reserve
4.01 km² overlap
Bersvenmyra
IUCN IaNature Reserve
3.47 km² overlap
Atnoset
IUCN IaNature Reserve
3.32 km² overlap
Atnoset
IUCN Not ReportedEmerald Network
3.32 km² overlap
Mesætermyre
IUCN IaNature Reserve
2.91 km² overlap
Veslehjerkinntjønnin
IUCN IaNature Reserve
1.81 km² overlap
Åsdalstjørna
IUCN IaNature Reserve
0.61 km² overlap
Grimsdalsmyrene
IUCN IaNature Reserve
0.48 km² overlap
Kattuglehøi
IUCN IaNature Reserve
0.27 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 232 distinct species · 75 536 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Atna : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 4 types (connectance 12.0%, 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°
-1,2°C
Annual rain
733mm
Moisture idx (CMI)
0,40
Runoff
478mm/an
PET
431mm
AET
388mm
Mean slope
10,3°
Water table
371cm
Forest
23%
Crops
0%
Urban
0%
Protected
49%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)