Municipality · SWE
Norrtälje
Sweden
Species observed
12 593
Observations
981 591
Area
2 155,7km²
Ecological tissue
Sample of 29 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 Norrtälje : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 5 types (connectance 17.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
12 593 distinct species · 981 591 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
6,3°C
Annual rain
626mm
Warmest m°
20,0°C
Coldest m°
-5,1°C
Elevation: 20 m on average (min -72 m, max 61 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,3
Org. C
109,3g/kg
Clay
19,9%
Sand
50,0%
Silt
30,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology5 basins · 50 lakes · 15 rivers
Hydrology metrics for this exact territory
Stream length here
146,9km
Lake surface here
87,81km²
Basins crossed
5
Max stream order
3
Max drainage
2 528km²
Discharge in basins
6,5m³/s
Mean precip.
523mm/an
Mean T°
6,0°C
Moisture idx
-0,04
Max snow
42%
Mean runoff
270mm/an
Mean elev. (basins)
25m
Watersheds crossing here
Lakes (50, top by area)
- Erkenarea23,1 km²avg depth7.2 m
- Skedvikenarea8,3 km²avg depth6.6 m
- Limmarenarea5,4 km²avg depth7.0 m
- Gavel-Långsjönarea5,2 km²avg depth8.4 m
- Närdingenarea3,3 km²avg depth6.9 m
- Sparrenarea2,8 km²avg depth8.5 m
- Bornanarea2,7 km²avg depth3.9 m
- Lommarenarea2,2 km²avg depth8.5 m
- Länna Kyrksjöarea2,2 km²avg depth7.4 m
41 more lakes
- Långsjönarea2 km²avg depth7.5 m
- Söderviksfjärdenarea1,8 km²avg depth3.8 m
- Sotternarea1,6 km²avg depth4.4 m
- Lake #57630area1,6 km²avg depth7.1 m
- Ösmarenarea1,5 km²avg depth5.5 m
- Ströjanarea1,4 km²avg depth4.1 m
- Largenarea1,4 km²avg depth5.3 m
- Virenarea1,2 km²avg depth4.7 m
- Syningenarea1,2 km²avg depth5.6 m
- Infjärdenarea1,2 km²avg depth2.8 m
- Bottenfjärdenarea1,1 km²avg depth4.7 m
- Ubby-Långsjönarea1,1 km²avg depth4.8 m
- Kyrksjönarea1,1 km²avg depth6.9 m
- Gisenarea1,1 km²avg depth3.1 m
- Lake #57389area1,1 km²avg depth4.1 m
- Brosjönarea1 km²avg depth4.6 m
- Lac 1287918area1 km²avg depth4.0 m
- Lac 1290812area1 km²avg depth5.5 m
- Lac 1289581area0,9 km²avg depth4.5 m
- Lac 1290065area0,9 km²avg depth5.4 m
- Lac 1291557area0,8 km²avg depth4.7 m
- Lac 1291062area0,8 km²avg depth4.3 m
- Lac 1290819area0,7 km²avg depth5.5 m
- Lac 1288318area0,7 km²avg depth4.2 m
- Lac 1291373area0,6 km²avg depth5.1 m
- Lac 1291510area0,6 km²avg depth4.6 m
- Lac 1290383area0,6 km²avg depth3.5 m
- Lac 1290617area0,6 km²avg depth4.3 m
- Lac 1290672area0,6 km²avg depth4.9 m
- Lac 1290461area0,6 km²avg depth4.4 m
- Lac 1289879area0,5 km²avg depth4.0 m
- Lac 1288077area0,5 km²avg depth3.6 m
- Lac 1289191area0,5 km²avg depth3.6 m
- Lac 1290783area0,5 km²avg depth5.6 m
- Lac 1289243area0,5 km²avg depth3.6 m
- Lac 1288309area0,4 km²avg depth3.7 m
- Lac 1288066area0,4 km²avg depth3.2 m
- Lac 1288444area0,4 km²avg depth3.0 m
- Lac 1289501area0,4 km²avg depth4.9 m
- Lac 1289124area0,4 km²avg depth4.0 m
- Lac 1287237area0,4 km²avg depth2.4 m
Rivers / streams (15, ord ≥ 4)
- Skeboånord 3len here28.58 km100%total29 km
- Holmbroånord 2len here15.89 km57%total28 km
- Hagasjöånord 1len here15.06 km98%total15 km
- Bodalsånord 2len here14.10 km89%total16 km
- Malstaånord 1len here12.19 km100%total12 km
- Snärvingens utloppord 1len here10.82 km98%total11 km
- Kolarmoraånord 3len here10.53 km64%total16 km
- Broströmmenord 2len here9.55 km98%total10 km
- Harbroholmsånord 3len here8.24 km100%total8 km
- Väddö kanalord 2len here5.70 km87%total7 km
- Lindbergaånord 1len here4.06 km67%total6 km
- Norrtälje åord 3len here3.90 km100%total4 km
3 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,7nW
Built-up
12,3%
Pesticides
3,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)