HydroBASINS lev08 watershed · #2080179410
Bassin de Juvanån
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 : Sollefteå, Örnsköldsvik
Sub-basin area
437km²
Upstream area
437km²
Discharge
5,57m³/s
Mean elev.
277m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 300.2 km²68.3% of basin
- 139.5 km²31.7% of basin
7 intersecting protected areas
Fransmyran
IUCN Not AssignedNatura 2000 SCI
0.86 km² overlap
Fransmyran
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.86 km² overlap
Nature Reserve
0.65 km² overlap
2000494 Tågsjöbrännan
IUCN IaNature Reserve
0.19 km² overlap
Tågsjöbrännan
IUCN IaNatura 2000 SCI
0.19 km² overlap
Tågsjöbrännan
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.19 km² overlap
SK 351-2014
IUCN IaHabitat Protection Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 213 distinct species · 22 559 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Juvanån : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 49 interactions GloBI sur 5 types (connectance 9.9%, filtre Serrano α=0.2). 8 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°
1,6°C
Annual rain
600mm
Moisture idx (CMI)
0,17
Runoff
402mm/an
PET
499mm
AET
396mm
Mean slope
4,2°
Water table
211cm
Forest
92%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)