HydroBASINS lev08 watershed · #2080056160
Bassin de Geelså
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 6 administrative regions : Faaborg-Midtfyn, Kerteminde, Nordfyns, Nyborg, Odense +1
Sub-basin area
350,1km²
Upstream area
350,1km²
Discharge
4,44m³/s
Mean elev.
9m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 207.9 km²59.1% of basin
- 64.0 km²18.2% of basin
- 41.6 km²11.8% of basin
- 2.7 km²0.8% of basin
- 1.1 km²0.3% of basin
- 1.0 km²0.3% of basin
26 intersecting protected areas
Kerteminde Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
10.36 km² overlap
The sea between Romsø and Hindsholm and Romsø
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
8.67 km² overlap
Fyns Hoved, Lillegrund og Lillestrand
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.50 km² overlap
Fyns Hoved, Lillegrund og Lillestrand
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
8.45 km² overlap
Havet mellem Romsø og Hindsholm samt Romsø
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.94 km² overlap
Odense Fjord
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.74 km² overlap
Odense Fjord
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.30 km² overlap
Odense Fjord
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
7.28 km² overlap
Vresen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.22 km² overlap
17 more protected areassorted by overlap area
Centrale Storebælt og Vresen
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
6.20 km² overlap
Romsø og sydkysten af Hindsholm
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.21 km² overlap
Odense Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
3.12 km² overlap
Sprogø og Halsskov Rev
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.76 km² overlap
Kerteminde Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
2.29 km² overlap
Nyborg Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
2.14 km² overlap
Urup Dam, Brabæk Mose, Birkende Mose og Illemose
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.02 km² overlap
Fyns Hoved
IUCN IVProtected by conservation order, excl. Church surroundings
0.83 km² overlap
Nyborg Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.57 km² overlap
Østerø Sø
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.56 km² overlap
Odense Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.40 km² overlap
Nordfyns Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.37 km² overlap
Slagelse Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.24 km² overlap
Urup Mose
IUCN IVProtected by conservation order, excl. Church surroundings
0.19 km² overlap
Faaborg-Midtfyn Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.10 km² overlap
Nordfyns Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.01 km² overlap
Slagelse Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 909 distinct species · 286 722 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Geelså : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 119 interactions GloBI sur 6 types (connectance 18.9%, filtre Serrano α=0.2). 15 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°
8,2°C
Annual rain
588mm
Moisture idx (CMI)
0,07
Runoff
396mm/an
PET
544mm
AET
426mm
Mean slope
0,7°
Water table
31cm
Forest
18%
Crops
63%
Urban
5%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)