HydroBASINS lev08 watershed · #2080056900
Bassin · #2080056900
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 1 administrative regions : Gotland
Sub-basin area
144,9km²
Upstream area
144,9km²
Discharge
0,74m³/s
Mean elev.
43m
Administrative coverage
30 intersecting protected areas
Hejnum hällar
IUCN Not AssignedNatura 2000 SCI
3.61 km² overlap
Hejnum hällar
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.61 km² overlap
Ormhällar-Bromyr
IUCN Not AssignedNatura 2000 SCI
3.26 km² overlap
Ormhällar-Bromyr
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.26 km² overlap
2000452 Hall-Hangvar
IUCN IaNature Reserve
2.02 km² overlap
Hall-Hangvar
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.07 km² overlap
Hall-Hangvar
IUCN IaNatura 2000 SCI
1.07 km² overlap
Klinthagen
IUCN IaNatura 2000 SCI
0.95 km² overlap
Klinthagen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.95 km² overlap
21 more protected areassorted by overlap area
2002952 Gräne
IUCN IaNature Reserve
0.86 km² overlap
Hajdhagen
IUCN IaNatura 2000 SCI
0.81 km² overlap
Hajdhagen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.81 km² overlap
2052442 Hajdhagen
IUCN IaNature Reserve
0.80 km² overlap
Gräne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.39 km² overlap
Gräne
IUCN IaNatura 2000 SCI
0.39 km² overlap
2000025 Grodvät
IUCN IVNature Reserve
0.37 km² overlap
2013367 Lilla Mörby
IUCN IaNature Reserve
0.33 km² overlap
2000449 Salmbärshagen
IUCN IaNature Reserve
0.31 km² overlap
Salmbärshagen
IUCN IaNatura 2000 SCI
0.31 km² overlap
Salmbärshagen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.31 km² overlap
Grodvät
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.24 km² overlap
Grodvät
IUCN IVNatura 2000 SCI
0.24 km² overlap
Millumträsk
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.23 km² overlap
Millumträsk
IUCN IVNatura 2000 SCI
0.23 km² overlap
SK 431-2001
IUCN IVNature conservation agreement, Swedish Forest Agency
0.23 km² overlap
2000125 Millumträsk
IUCN IVNature Reserve
0.23 km² overlap
2023151 Ireån
IUCN IaNature Reserve
0.15 km² overlap
Filehajdar
IUCN Not AssignedNatura 2000 SCI
0.15 km² overlap
Filehajdar
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
Tiselhagen
IUCN IaNatura 2000 SCI
0.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 967 distinct species · 20 662 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 · #2080056900 : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 4 types (connectance 12.2%, 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°
7,1°C
Annual rain
531mm
Moisture idx (CMI)
0,02
Runoff
187mm/an
PET
523mm
AET
384mm
Mean slope
0,6°
Water table
68cm
Forest
60%
Crops
29%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)