Ålborg Bugt, Randers Fjord og Mariager Fjord
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
690 km²
Municipality · DNK
Randers
Denmark
CfbTemperate, no dry season, warm summer(100 %)
Species observed
6 606
Observations
618 577
Area
752,1km²
Ecological tissue
Sample of 22 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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Randers : 14 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 6 types (connectance 29.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
24
Interactions affichées
81
Connectance
0.293
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
6 606 distinct species · 618 577 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,3°C
Annual rain
741mm
Warmest m°
19,8°C
Coldest m°
-0,9°C
Elevation: 30 m on average (min -1 m, max 104 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
8,3°C
Annual rain
741mm
Warmest month
19,8°C
Coldest month
-0,9°C
Mean alt.
30m
Min
-1m
Max
104m
Std. dev.
19m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,0
Org. C
60,1g/kg
Clay
12,2%
Sand
62,6%
Silt
25,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,9
Org. C
91,3g/kg
Clay
12,1%
Sand
62,6%
Silt
25,3%
5–15 cm
pH H₂O
6,1
Org. C
47,4g/kg
Clay
11,6%
Sand
63,2%
Silt
25,1%
15–30 cm
pH H₂O
6,0
Org. C
41,6g/kg
Clay
12,8%
Sand
62,1%
Silt
25,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest9.8%
Crops64.0%
Built-up0.9%
Bare soil0.5%
Other (grassland, water…)24.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology6 basins · 2 lakes · 26 rivers
Hydrology metrics for this exact territory
Stream length here
172,4km
Lake surface here
2,41km²
Basins crossed
6
Max stream order
4
Max drainage
2 737km²
Discharge in basins
11,1m³/s
Mean precip.
674mm/an
Mean T°
7,5°C
Moisture idx
0,17
Max snow
20%
Mean runoff
478mm/an
Mean elev. (basins)
39m
Watersheds crossing here
- Bassin de Gudenåsub-area2 736,5 km²overlap246.47 km²33%
- Bassin de Vadbæksub-area209,6 km²overlap186.55 km²25%
- Bassin de Skals Åsub-area608,3 km²overlap179.54 km²24%
- Bassin de Alling Åsub-area379,2 km²overlap87.28 km²12%
- Bassin de Kastbjerg Åsub-area419,2 km²overlap51.87 km²7%
- Bassin de Haslevgård Åsub-area350,7 km²overlap0.38 km²0%
Lakes (2, top by area)
Rivers / streams (26, ord ≥ 4)
- Gudenåord 4len here37.71 km22%total172 km
- Kåtbækord 2len here15.89 km95%total17 km
- Alling Åord 3len here12.25 km29%total42 km
- Borup Møllebækord 1len here10.37 km100%total10 km
- Vadbækord 1len here10.33 km100%total10 km
- Kastbjerg Åord 2len here7.49 km40%total19 km
- Narrenord 1len here7.29 km100%total7 km
- Øster Tørslev Åord 1len here7.12 km100%total7 km
- Lillevejle Bækord 1len here6.91 km100%total7 km
- Tvede Åord 2len here6.42 km100%total6 km
- Volkmølle Bækord 4len here5.96 km100%total6 km
- Flegbækord 2len here5.73 km100%total6 km
14 more river segmentssorted by Strahler order + length
- Oust Møllebækord 1len here5.26 km100%total5 km
- Kousted Åord 1len here5.02 km100%total5 km
- Hovbækord 1len here4.79 km100%total5 km
- Oksenbækord 1len here4.18 km88%total5 km
- Ris Møllebækord 1len here3.84 km100%total4 km
- Kondrup Bækord 1len here3.75 km100%total4 km
- Møllebækord 1len here3.15 km54%total6 km
- Skals Åord 3len here2.65 km7%total36 km
- Udbyneder Landkanalord 1len here2.22 km100%total2 km
- Brusgård Møllebækord 1len here1.41 km100%total1 km
- Fuglsø Bækord 1len here1.38 km100%total1 km
- Vorning Åord 2len here1.11 km5%total21 km
- Skørring Åord 3len here0.15 km8%total2 km
- Vejlebækord 1len here≈ tangenttotal4 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,9nW
Built-up
94,0%
Pesticides
10,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas23
IUCN Not Reported · 8IUCN IV · 7IUCN Not Assigned · 6IUCN V · 2🌊 Marine · 14
Ålborg Bay, Randers Fjord and Mariager Fjord
IUCN Not ReportedBaltic Sea Protected Area (HELCOM) · 2005
690 km²
Ålborg Bugt, Randers Fjord og Mariager Fjord
IUCN Not ReportedMarine Protected Area (OSPAR) · 2009
617 km²
Randers and Mariager Fjords and The Adjacent Sea
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 1977
392 km²
Randers og Mariager Fjorde og Ålborg Bugt, sydlige del
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 1983
392 km²
Lovns Bredning, Hjarbæk Fjord og Skals, Simested og Nørre Ådal, Skravad Bæk
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
246 km²
Complete list23 protected areas
- Ålborg Bugt, Randers Fjord og Mariager FjordSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2011690 km²
- Ålborg Bay, Randers Fjord and Mariager FjordBaltic Sea Protected Area (HELCOM)IUCN Not Reported2005690 km²
- Ålborg Bugt, Randers Fjord og Mariager FjordMarine Protected Area (OSPAR)IUCN Not Reported2009617 km²
- Randers and Mariager Fjords and The Adjacent SeaWetland of International Importance (Ramsar Site)IUCN Not Reported1977392 km²
- Randers og Mariager Fjorde og Ålborg Bugt, sydlige delSpecial Protection Area (Birds Directive)IUCN Not Reported1983392 km²
- Lovns Bredning, Hjarbæk Fjord og Skals, Simested og Nørre Ådal, Skravad BækSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2011246 km²
- Viborg Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned1992129 km²
- Mariagerfjord Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199263 km²
- Randers Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199257 km²
- Syddjurs Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199254 km²
- Norddjurs Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199247 km²
- Favrskov Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199228 km²
- Kastbjerg ÅdalSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201111 km²
- Randers Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV199210 km²
- Norddjurs Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV19929 km²
- Ajstrup BugtProtected by conservation order, excl. Church surroundingsIUCN V20013 km²
- Bjerre Skov og Haslund SkovSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20112 km²
- Læsten BakkerProtected by conservation order, excl. Church surroundingsIUCN IV20061 km²
- Bjerre SkovProtected by conservation order, excl. Church surroundingsIUCN V19861 km²
- Hvidding KratProtected by conservation order, excl. Church surroundingsIUCN IV19841 km²
- Haslund SkovProtected by conservation order, excl. Church surroundingsIUCN IV19790 km²
- Fussingsø, Læsten BakkerProtected by conservation order, excl. Church surroundingsIUCN IV19690 km²
- Lundbjerggård RigkærProtected by conservation order, excl. Church surroundingsIUCN IV19790 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN