HydroBASINS lev08 watershed · #2080025270
Bassin de Hevring Å
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 : Norddjurs, Syddjurs
Sub-basin area
321km²
Upstream area
321km²
Discharge
4,31m³/s
Mean elev.
19m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 301.6 km²93.5% of basin
- 1.9 km²0.6% of basin
13 intersecting protected areas
Ålborg Bugt, Randers Fjord og Mariager Fjord
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.62 km² overlap
Ålborg Bay, Randers Fjord and Mariager Fjord
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
24.60 km² overlap
Randers og Mariager Fjorde og Ålborg Bugt, sydlige del
IUCN Not ReportedSpecial Protection Area (Birds Directive)
22.47 km² overlap
Randers and Mariager Fjords and The Adjacent Sea
IUCN Not ReportedWetland of International Importance (Ramsar Site)
21.57 km² overlap
Norddjurs Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
17.31 km² overlap
Alborg Bugt, østlige de
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
8.11 km² overlap
Nordvestlige Kattegat
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.10 km² overlap
Ålborg Bugt, østlige del
IUCN Not ReportedMarine Protected Area (OSPAR)
7.17 km² overlap
Norddjurs Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
5.17 km² overlap
4 more protected areassorted by overlap area
Ålborg Bugt, Randers Fjord og Mariager Fjord
IUCN Not ReportedMarine Protected Area (OSPAR)
4.83 km² overlap
Eldrup Skov og søer og moser i Løvenholm Skov
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.56 km² overlap
Stensmark Strand
IUCN IVProtected by conservation order, excl. Church surroundings
0.94 km² overlap
Syddjurs Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.27 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 742 distinct species · 279 123 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Hevring Å : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 5 types (connectance 29.7%, filtre Serrano α=0.2). 13 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°
7,6°C
Annual rain
594mm
Moisture idx (CMI)
0,06
Runoff
420mm/an
PET
556mm
AET
437mm
Mean slope
1,1°
Water table
95cm
Forest
25%
Crops
51%
Urban
1%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)