NNN-NH
IUCN Not AssignedNature Reserves owned by professional nature management organizations · 2018
566 km²
Municipality · NLD
Heemskerk
Netherlands
CfbTemperate, no dry season, warm summer(100 %)
Species observed
7 142
Observations
903 499
Area
27,8km²
Ecological tissue
Sample of 36 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 Heemskerk : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 6 types (connectance 15.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
99
Connectance
0.157
Patrimoniales
3
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
7 142 distinct species · 903 499 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,3°C
Annual rain
946mm
Warmest m°
19,2°C
Coldest m°
2,2°C
Elevation: 3 m on average (min -2 m, max 10 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,3°C
Annual rain
946mm
Warmest month
19,2°C
Coldest month
2,2°C
Mean alt.
3m
Min
-2m
Max
10m
Std. dev.
4m
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
6,7
Org. C
56,4g/kg
Clay
37,5%
Sand
24,0%
Silt
38,5%
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
6,6
Org. C
73,8g/kg
Clay
34,6%
Sand
26,1%
Silt
39,3%
5–15 cm
pH H₂O
6,7
Org. C
48,0g/kg
Clay
37,0%
Sand
24,8%
Silt
38,2%
15–30 cm
pH H₂O
6,8
Org. C
47,4g/kg
Clay
40,9%
Sand
21,0%
Silt
38,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest23.4%
Crops17.6%
Built-up5.7%
Bare soil1.2%
Other (grassland, water…)52.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
4,8km
Basins crossed
2
Max stream order
1
Max drainage
1 905km²
Discharge in basins
0,2m³/s
Mean precip.
787mm/an
Mean T°
9,1°C
Moisture idx
0,26
Max snow
11%
Mean runoff
489mm/an
Mean elev. (basins)
-1m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
8hab/km²
Night light
11,0nW
Built-up
565,4%
Pesticides
54,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Assigned · 1IUCN IV · 1IUCN Not Reported · 1🌊 Marine · 1
Noordhollands Duinreservaat
IUCN IVNature Conservation Act · 2015
52 km²
Noordhollands Duinreservaat
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
52 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN