HydroBASINS lev08 watershed · #2080194730
Bassin de Gimån
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 3 administrative regions : Bräcke, Sundsvall, Ånge
Sub-basin area
124,9km²
Upstream area
3 445,2km²
Discharge
27,56m³/s
Mean elev.
274m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Gimån646 km²
- Bassin de Ansjöån621 km²
3 dept-equivalent regions (GADM L2)
- 87.5 km²69.6% of basin
- 25.5 km²20.3% of basin
- 12.7 km²10.1% of basin
16 intersecting protected areas
Gimån; Uppströms Holmsjön
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.43 km² overlap
Gimån; Uppströms Holmsjön
IUCN Not AssignedNatura 2000 SCI
4.43 km² overlap
Käringberget
IUCN IaNatura 2000 SCI
0.37 km² overlap
Käringberget
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.37 km² overlap
2000911 Käringberget
IUCN IaNature Reserve
0.37 km² overlap
Valletjärnarna
IUCN IaNatura 2000 SCI
0.14 km² overlap
Valletjärnarna
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.14 km² overlap
2000908 Valletjärnarna
IUCN IaNature Reserve
0.14 km² overlap
2000681 Lovik-Storflon
IUCN IaNature Reserve
0.07 km² overlap
7 more protected areassorted by overlap area
Lovik-Storflon
IUCN IaNatura 2000 SCI
0.07 km² overlap
Lovik-Storflon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.07 km² overlap
2000910 Svedjan
IUCN Not AssignedNature Reserve
0.04 km² overlap
Svedjan
IUCN Not AssignedNatura 2000 SCI
0.04 km² overlap
Svedjan
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.04 km² overlap
Lillbäcken Ljungå
IUCN Not AssignedNatura 2000 SCI
0.00 km² overlap
Lillbäcken Ljungå
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 027 distinct species · 6 560 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 Gimån : 24 espèces reliées par 45 interactions GloBI sur 5 types (connectance 9.1%, 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°
2,3°C
Annual rain
626mm
Moisture idx (CMI)
0,18
Runoff
285mm/an
PET
515mm
AET
411mm
Mean slope
4,6°
Water table
252cm
Forest
91%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)