Markermeer & IJmeer
IUCN IVNature Conservation Act · 2010
685 km²
Municipality · NLD
Netherlands
Species observed
7 024
Observations
269 340
Area
47,8km²
Sample of 43 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 Gooise Meren : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 120 interactions GloBI sur 6 types (connectance 12.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
7 024 distinct species · 269 340 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
10,1°C
Annual rain
920mm
Warmest m°
21,4°C
Coldest m°
0,6°C
Elevation: 1 m on average (min -5 m, max 21 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,0
Org. C
103,0g/kg
Clay
27,3%
Sand
42,8%
Silt
29,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
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
5,9km
Lake surface here
1,88km²
Basins crossed
4
Max stream order
3
Max drainage
1 668km²
Discharge in basins
0,8m³/s
Mean precip.
798mm/an
Mean T°
9,2°C
Moisture idx
0,16
Max snow
14%
Mean runoff
486mm/an
Mean elev. (basins)
7m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
6hab/km²
Night light
7,1nW
Built-up
471,3%
Pesticides
53,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Nature Conservation Act · 2010
685 km²
Wetland of International Importance (Ramsar Site) · 2000
685 km²
Special Protection Area (Birds Directive) · 2000
685 km²
Nature Reserves owned by professional nature management organizations · 2018
566 km²
Wetland of International Importance (Ramsar Site) · 2000
75 km²
Nature Conservation Act · 2010
16 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN