HydroBASINS lev08 watershed · #2080056850
Bassin de Idå
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
613,7km²
Upstream area
613,7km²
Discharge
0,56m³/s
Mean elev.
36m
Administrative coverage
30 intersecting protected areas
2000462 Gotlandskusten
IUCN VNature Conservation Area
10.16 km² overlap
Stora Karlsö
IUCN IaNatura 2000 SPA
4.23 km² overlap
Stora Karlsö
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.23 km² overlap
2000435 Stora Karlsö
IUCN IaNature Reserve
4.23 km² overlap
Stora Karlsö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.23 km² overlap
Stora Karlsö
IUCN IaNatura 2000 SCI
4.23 km² overlap
Lilla Karlsö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.47 km² overlap
Lilla Karlsö
IUCN VNatura 2000 SCI
2.47 km² overlap
2000436 Lilla Karlsö
IUCN VNature Reserve
2.47 km² overlap
21 more protected areassorted by overlap area
Lilla Karlsö
IUCN VNatura 2000 SPA
2.47 km² overlap
Lilla Karlsö
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.47 km² overlap
Björkume
IUCN VNatura 2000 SCI
2.40 km² overlap
Björkume
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.40 km² overlap
2000135 Björkume
IUCN VNature Reserve
2.39 km² overlap
Ugnen
IUCN Not AssignedNatura 2000 SPA
2.31 km² overlap
Ugnen
IUCN Not AssignedNatura 2000 SCI
2.31 km² overlap
Ugnen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.31 km² overlap
Ugnen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.31 km² overlap
2003576 Ugnen
IUCN Not AssignedWildlife and Plant Sanctuary
2.06 km² overlap
Burggatskog
IUCN Not AssignedAgreement between government agencies
1.90 km² overlap
2055202 Stora Vede
IUCN IaNature Reserve
1.64 km² overlap
2003575 Ugnen M
IUCN Not AssignedWildlife and Plant Sanctuary
1.43 km² overlap
2042626 Södra hällarna
IUCN IIINature Reserve
1.21 km² overlap
2000129 Ekstakusten
IUCN IIINature Reserve
0.97 km² overlap
2045710 Vivesholm
IUCN IaNature Reserve
0.97 km² overlap
Nasume myr
IUCN Not AssignedNatura 2000 SCI
0.93 km² overlap
Nasume myr
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.93 km² overlap
2002746 Ölbäck
IUCN IVNature Reserve
0.87 km² overlap
2000131 Paviken
IUCN IVNature Reserve
0.76 km² overlap
Paviken
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.76 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 832 distinct species · 778 913 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 Idå : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 3 types (connectance 13.8%, filtre Serrano α=0.2). 7 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°
7,2°C
Annual rain
519mm
Moisture idx (CMI)
-0,01
Runoff
199mm/an
PET
524mm
AET
384mm
Mean slope
1,0°
Water table
90cm
Forest
59%
Crops
38%
Urban
4%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)