Roskilde Fjord og Jaegerspris Nordskov
IUCN Not ReportedBaltic Sea Protected Area (HELCOM) · 2009
149 km²
Municipality · DNK
Frederikssund
Denmark
CfbTemperate, no dry season, warm summer(100 %)
Species observed
5 093
Observations
289 646
Area
252,4km²
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 Frederikssund : 15 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 5 types (connectance 29.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
24
Interactions affichées
80
Connectance
0.290
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
5 093 distinct species · 289 646 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,4°C
Annual rain
670mm
Warmest m°
20,6°C
Coldest m°
-1,3°C
Elevation: 15 m on average (min -6 m, max 44 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
8,4°C
Annual rain
670mm
Warmest month
20,6°C
Coldest month
-1,3°C
Mean alt.
15m
Min
-6m
Max
44m
Std. dev.
10m
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
6,6
Org. C
42,6g/kg
Clay
15,6%
Sand
57,5%
Silt
26,9%
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
6,4
Org. C
72,8g/kg
Clay
14,4%
Sand
58,0%
Silt
27,6%
5–15 cm
pH H₂O
6,6
Org. C
29,9g/kg
Clay
13,3%
Sand
59,3%
Silt
27,4%
15–30 cm
pH H₂O
6,7
Org. C
25,0g/kg
Clay
19,1%
Sand
55,2%
Silt
25,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest13.9%
Crops55.0%
Built-up1.3%
Bare soil0.7%
Other (grassland, water…)29.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 2 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
15,8km
Lake surface here
0,65km²
Basins crossed
1
Max stream order
2
Max drainage
4 045km²
Discharge in basins
0,1m³/s
Mean precip.
607mm/an
Mean T°
8,2°C
Moisture idx
0,12
Max snow
17%
Mean runoff
367mm/an
Mean elev. (basins)
21m
Watersheds crossing here
Lakes (2, top by area)
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,9nW
Built-up
124,6%
Pesticides
10,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas29
IUCN Not Reported · 10IUCN IV · 9IUCN Not Assigned · 7IUCN V · 3🌊 Marine · 17
Roskilde Fjord
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
138 km²
Roskilde Fjord, Kattinge Vig og Kattinge Sø
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 1983
132 km²
Øvre Mølleådal, Furesø og Frederiksdal Skov
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
38 km²
Hillerød Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.) · 1992
23 km²
Halsnæs Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.) · 1992
23 km²
Complete list29 protected areas
- Roskilde Fjord og Jaegerspris NordskovBaltic Sea Protected Area (HELCOM)IUCN Not Reported2009149 km²
- Roskilde FjordSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2011138 km²
- Roskilde Fjord, Kattinge Vig og Kattinge SøSpecial Protection Area (Birds Directive)IUCN Not Reported1983132 km²
- Øvre Mølleådal, Furesø og Frederiksdal SkovSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201138 km²
- Hillerød Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV199223 km²
- Halsnæs Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV199223 km²
- Frederikssund Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199219 km²
- Lejre Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199215 km²
- Jægerspris NordskovSpecial Protection Area (Birds Directive)IUCN Not Reported198315 km²
- Egedal Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199213 km²
- Roskilde Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned199212 km²
- Hillerød Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned19929 km²
- Frederikssund Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV19928 km²
- Jægerspris SkydeterrænSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20116 km²
- Jægerspris SkydeterrænBaltic Sea Protected Area (HELCOM)IUCN Not Reported20096 km²
- Halsnæs Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned19925 km²
- Jørlunde, SperrestrupProtected by conservation order, excl. Church surroundingsIUCN V19745 km²
- Allerød Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV19924 km²
- Roskilde Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV19924 km²
- Jægerspris NordskovProtected by conservation order, excl. Church surroundingsIUCN V19884 km²
- Kyndby KystSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20114 km²
- Kyndby KystBaltic Sea Protected Area (HELCOM)IUCN Not Reported20094 km²
- Allerød Kommune private§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN Not Assigned19923 km²
- Lejre Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV19923 km²
- Øer i Roskilde FjordProtected by conservation order, excl. Church surroundingsIUCN IV19852 km²
- Egedal Kommune public§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)IUCN IV19922 km²
- Bastrup Sø - Bure Sø, MølleådaProtected by conservation order, excl. Church surroundingsIUCN V19481 km²
- Kirkeengen, SkidenåsProtected by conservation order, excl. Church surroundingsIUCN IV19450 km²
- Kongens LyngSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20110 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN