HydroBASINS lev08 watershed · #2080150270
Bassin de Varjisån
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 : Arjeplog, Arvidsjaur, Jokkmokk, Älvsbyn
Sub-basin area
1 839,2km²
Upstream area
1 839,4km²
Discharge
21,9m³/s
Mean elev.
375m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1453.9 km²78.5% of basin
- 247.4 km²13.4% of basin
- 98.8 km²5.3% of basin
- 51.6 km²2.8% of basin
30 intersecting protected areas
2001270 Udtja
IUCN IbNature Reserve
363.53 km² overlap
Udtja
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
363.52 km² overlap
Udtja
IUCN IbNatura 2000 SCI
363.52 km² overlap
2063443 Guollejávrre
IUCN Not AssignedNature Reserve
48.06 km² overlap
Varjisån
IUCN IVNature conservation agreement
44.10 km² overlap
2059948 Tjaraivare
IUCN Not AssignedNature Reserve
38.11 km² overlap
Piteälven
IUCN Not AssignedNatura 2000 SCI
38.08 km² overlap
Piteälven
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
38.08 km² overlap
Reuna
IUCN Not AssignedAgreement between government agencies
32.82 km² overlap
21 more protected areassorted by overlap area
Kronogård
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.55 km² overlap
Kronogård
IUCN IbNatura 2000 SCI
21.55 km² overlap
Nature Reserve
21.55 km² overlap
Varjisån
IUCN IVNature conservation agreement
17.23 km² overlap
Lulep Låmenåive
IUCN Not AssignedAgreement between government agencies
13.64 km² overlap
Nature Reserve
9.24 km² overlap
2001277 Vitberget
IUCN IaNature Reserve
7.73 km² overlap
Luottåive
IUCN IVNature conservation agreement
7.65 km² overlap
Vitberget
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.28 km² overlap
Vitberget
IUCN IaNatura 2000 SCI
6.28 km² overlap
Katjavare
IUCN Not AssignedAgreement between government agencies
6.25 km² overlap
2044051 Parravirreheden
IUCN IaNature Reserve
4.44 km² overlap
Luottåive
IUCN IVNature conservation agreement
3.32 km² overlap
2021969 Ballekvare
IUCN IaNature Reserve
2.76 km² overlap
Nature Reserve
2.02 km² overlap
2014587 Globerget
IUCN IaNature Reserve
1.75 km² overlap
2044876 Illok
IUCN IaNature Reserve
1.55 km² overlap
2040369 Kåbdalisvare
IUCN IaNature Reserve
1.46 km² overlap
2059946 Biellovárre
IUCN IaNature Reserve
1.18 km² overlap
2002788 Stormyran
IUCN IaNature Reserve
1.14 km² overlap
Stormyran
IUCN IaNatura 2000 SCI
1.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 001 distinct species · 59 051 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 Varjisån : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 5 types (connectance 6.9%, filtre Serrano α=0.2). 9 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°
-0,9°C
Annual rain
520mm
Moisture idx (CMI)
0,13
Runoff
387mm/an
PET
451mm
AET
360mm
Mean slope
3,9°
Water table
137cm
Forest
74%
Crops
0%
Urban
0%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)