HydroBASINS lev08 watershed · #2080211300
Bassin de Granan
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 : Härjedalen, Älvdalen
Sub-basin area
142,8km²
Upstream area
142,8km²
Discharge
1,62m³/s
Mean elev.
593m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 121.6 km²84.7% of basin
- 22.0 km²15.3% of basin
9 intersecting protected areas
Fonotjärnsåsen
IUCN Not AssignedAgreement between government agencies
15.97 km² overlap
Stor-Höktanden
IUCN Not AssignedAgreement between government agencies
9.58 km² overlap
Blålågan-Väster-Trollegrav
IUCN Not AssignedAgreement between government agencies
8.78 km² overlap
2002459 Södra Trollegrav
IUCN IaNature Reserve
1.71 km² overlap
Södra Trollegrav
IUCN IaNatura 2000 SCI
1.34 km² overlap
Södra Trollegrav
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.34 km² overlap
Rassakufjäll
IUCN Not AssignedAgreement between government agencies
0.73 km² overlap
Snodskallen
IUCN Not AssignedAgreement between government agencies
0.15 km² overlap
Draggaberget
IUCN Not AssignedAgreement between government agencies
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 037 distinct species · 4 357 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Granan : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 6 types (connectance 7.5%, 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°
1,6°C
Annual rain
681mm
Moisture idx (CMI)
0,28
Runoff
355mm/an
PET
493mm
AET
425mm
Mean slope
4,2°
Water table
238cm
Forest
88%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)