Nordre älvs estuarium
IUCN VWetland of International Importance (Ramsar Site) · 2001
72 km²
Municipality · SWE
Sweden
Species observed
14 557
Observations
2 286 885
Area
475,3km²
Sample of 34 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 Göteborg : 28 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 13.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
14 557 distinct species · 2 286 885 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
7,6°C
Annual rain
937mm
Warmest m°
20,1°C
Coldest m°
-3,0°C
Elevation: 40 m on average (min -20 m, max 136 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
4,7
Org. C
84,3g/kg
Clay
16,0%
Sand
52,6%
Silt
31,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
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
74,1km
Lake surface here
4,53km²
Basins crossed
4
Max stream order
3
Max drainage
49 859km²
Discharge in basins
66,3m³/s
Mean precip.
819mm/an
Mean T°
6,9°C
Moisture idx
0,31
Max snow
34%
Mean runoff
496mm/an
Mean elev. (basins)
87m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
6hab/km²
Night light
17,5nW
Built-up
342,8%
Pesticides
2,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Wetland of International Importance (Ramsar Site) · 2001
72 km²
Special Areas of Conservation (Habitats Directive) · 2011
71 km²
Special Protection Area (Birds Directive) · 1998
71 km²
Natura 2000 SCI · 1998
71 km²
Natura 2000 SPA · 1998
71 km²
Marine Protected Area (OSPAR) · 2006
71 km²
+ 24 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN