2051761 Rävsta
IUCN Not AssignedNature Reserve · 2019
3 km²
Municipality · SWE
Sweden
Species observed
8 077
Observations
808 960
Area
352,1km²
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).
Tissu écologique de Sigtuna : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 4 types (connectance 16.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
8 077 distinct species · 808 960 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
6,3°C
Annual rain
592mm
Warmest m°
21,6°C
Coldest m°
-6,0°C
Elevation: 24 m on average (min 1 m, max 49 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
5,5
Org. C
74,9g/kg
Clay
24,3%
Sand
43,7%
Silt
31,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiM
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
42,8km
Lake surface here
28,23km²
Basins crossed
4
Max stream order
2
Max drainage
3 650km²
Discharge in basins
13,5m³/s
Mean precip.
542mm/an
Mean T°
6,4°C
Moisture idx
-0,04
Max snow
39%
Mean runoff
224mm/an
Mean elev. (basins)
33m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
1hab/km²
Night light
5,5nW
Built-up
72,9%
Pesticides
4,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Nature Reserve · 2019
3 km²
Wildlife and Plant Sanctuary · 1968
2 km²
Wildlife and Plant Sanctuary · 1968
2 km²
Nature Reserve · 1984
2 km²
Nature Reserve · 2006
1 km²
Nature Reserve · 2009
1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN