Wadden Sea
IUCN Not ApplicableWorld Heritage Site (natural or mixed) · 2009
11 574 km²
Province · nld
Noord-Holland
Netherlands
CfbTemperate, no dry season, warm summer(100 %)
Species observed
21 550
Observations
12 639 270
Area
2 876,4km²
Ecological tissue
Sample of 40 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 Noord-Holland : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 5 types (connectance 11.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
40
Interactions affichées
93
Connectance
0.119
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
21 550 distinct species · 12 639 270 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,2°C
Annual rain
906mm
Warmest m°
19,7°C
Coldest m°
1,8°C
Elevation: -1 m on average (min -21 m, max 23 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,2°C
Annual rain
906mm
Warmest month
19,7°C
Coldest month
1,8°C
Mean alt.
-1m
Min
-21m
Max
23m
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
67,7g/kg
Clay
29,0%
Sand
34,8%
Silt
36,2%
Average over 0-30 cm. Per-depth details in expert panel.
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,6
Org. C
83,4g/kg
Clay
28,0%
Sand
35,6%
Silt
36,4%
5–15 cm
pH H₂O
6,7
Org. C
53,3g/kg
Clay
28,7%
Sand
35,3%
Silt
36,0%
15–30 cm
pH H₂O
6,8
Org. C
66,3g/kg
Clay
30,2%
Sand
33,5%
Silt
36,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest11.2%
Crops33.8%
Built-up4.1%
Bare soil0.9%
Other (grassland, water…)50.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 50 lakes · 96 rivers
Hydrology metrics for this exact territory
Stream length here
558,5km
Lake surface here
66,33km²
Basins crossed
7
Max stream order
4
Max drainage
1 905km²
Discharge in basins
21,5m³/s
Mean precip.
788mm/an
Mean T°
9,1°C
Moisture idx
0,25
Max snow
14%
Mean runoff
489mm/an
Mean elev. (basins)
-0m
Watersheds crossing here
- Bassin de Ringslootsub-area1 905,4 km²overlap1546.54 km²54%
- Bassin de Beemsterringvaartsub-area794,8 km²overlap788.22 km²27%
- Bassin de Ringvaart van de Haarlemmermeerpoldersub-area1 024,3 km²overlap280.30 km²10%
- Bassin de Vechtsub-area371,4 km²overlap124.85 km²4%
- Bassin de Grote Valkse beeksub-area1 668,1 km²overlap83.95 km²3%
- Basin #23230sub-area26,5 km²overlap22.76 km²1%
- Bassin de Naardertrekvaartsub-area23 km²overlap20.84 km²1%
Lakes (50, top by area)
- Ijsselmeerarea1 962,7 km²avg depth4.5 m
- Westeinderplassenarea8,6 km²avg depth1.5 m
- Loosdrechtsche Plassenarea7,8 km²avg depth1.8 m
- Amstelmeerarea6,4 km²avg depth1.4 m
- Alkmaardermeerarea5,8 km²avg depth1.3 m
- Kagerplassenarea3,8 km²avg depth1.0 m
- Wijde Blikarea2,3 km²avg depth1.3 m
- Spiegel- en Blijkpolderplasarea1,8 km²avg depth1.3 m
- Loenderveensche Plasarea1,7 km²avg depth1.2 m
41 more lakes
- Breukeleveensche Plasarea1,4 km²avg depth1.1 m
- Mooie Nelarea1,2 km²avg depth1.0 m
- Het Nieuwe Meerarea1,1 km²avg depth1.1 m
- Lac 1329171area0,9 km²avg depth1.7 m
- Lac 1330009area0,9 km²avg depth1.9 m
- Lac 1327024area0,8 km²avg depth1.9 m
- Lac 1328633area0,8 km²avg depth1.5 m
- Lac 1329733area0,8 km²avg depth1.6 m
- Lac 1329299area0,7 km²avg depth2.5 m
- Lac 1328872area0,7 km²avg depth1.6 m
- Lac 1327813area0,7 km²avg depth1.4 m
- Lac 1329539area0,6 km²avg depth1.7 m
- Lac 1329631area0,5 km²avg depth2.2 m
- Lac 1330030area0,5 km²avg depth1.9 m
- Lac 1328999area0,5 km²avg depth1.1 m
- Lac 1328799area0,4 km²avg depth1.6 m
- Lac 1329982area0,4 km²avg depth1.6 m
- Lac 1329549area0,4 km²avg depth2.1 m
- Lac 1329382area0,4 km²avg depth1.9 m
- Lac 1329595area0,4 km²avg depth2.6 m
- Lac 1329814area0,4 km²avg depth1.3 m
- Lac 1327310area0,4 km²avg depth1.8 m
- Lac 1327599area0,4 km²avg depth1.6 m
- Lac 1329318area0,4 km²avg depth1.4 m
- Lac 1329061area0,4 km²avg depth1.3 m
- Lac 1329603area0,3 km²avg depth1.6 m
- Lac 1327562area0,3 km²avg depth1.4 m
- Lac 1327188area0,3 km²avg depth1.7 m
- Lac 1328964area0,3 km²avg depth1.2 m
- Lac 1329931area0,3 km²avg depth1.6 m
- Lac 1329042area0,3 km²avg depth1.0 m
- Lac 1328597area0,2 km²avg depth1.2 m
- Lac 1329781area0,2 km²avg depth1.2 m
- Lac 1329662area0,2 km²avg depth1.5 m
- Lac 1329466area0,2 km²avg depth1.8 m
- Lac 1329594area0,2 km²avg depth1.1 m
- Lac 1328812area0,2 km²avg depth1.2 m
- Lac 1326335area0,2 km²avg depth1.4 m
- Lac 1329108area0,2 km²avg depth1.1 m
- Lac 1330108area0,2 km²avg depth1.5 m
- Lac 1326332area0,2 km²avg depth1.4 m
Rivers / streams (96, ord ≥ 4)
- Beemsterringvaartord 2len here26.16 km100%total26 km
- Ringslootord 2len here23.62 km100%total24 km
- Ringvaart van de Haarlemmermeerpolderord 3len here22.08 km71%total31 km
- Hoofdvaartord 3len here17.77 km72%total25 km
- Weelslootord 2len here16.44 km100%total16 km
- Grote Slootord 3len here16.08 km100%total16 km
- Ringvaart van de Heerhugowaardord 2len here14.96 km100%total15 km
- Wijde Slootord 1len here14.46 km100%total14 km
- Waardkanaalord 3len here12.65 km99%total13 km
- Gaaspord 1len here12.08 km94%total13 km
- Muyeveldsche Weteringord 2len here10.94 km78%total14 km
- Zijkanaal Gord 3len here10.69 km100%total11 km
84 more river segmentssorted by Strahler order + length
- Amstelord 1len here10.58 km100%total11 km
- Ooster Egalementslootord 3len here9.77 km100%total10 km
- Noorder Buiten Spaarneord 2len here9.63 km100%total10 km
- Noordhollandsch Kanaalord 2len here9.50 km100%total9 km
- Vechtord 3len here9.11 km28%total33 km
- Kanaal Schagen-Kolhornord 1len here8.86 km100%total9 km
- Robbevaartord 2len here8.81 km100%total9 km
- Boomervaartord 1len here8.81 km100%total9 km
- Zijkanaal Ford 1len here8.74 km100%total9 km
- Nieuwe Keizersgrachtord 2len here8.42 km100%total8 km
- Dijkstal of Banscheidslootord 2len here8.09 km100%total8 km
- Kees Hanssensslootord 2len here7.63 km100%total8 km
- Purmerringvaartord 1len here7.63 km100%total8 km
- Hilversumsch Kanaalord 1len here7.55 km100%total8 km
- Noordzeekanaalord 4len here7.54 km100%total8 km
- Jachthavenord 2len here7.39 km100%total7 km
- Egmonder binnenvaartord 1len here7.36 km100%total7 km
- Eijerlands Kanaalord 1len here7.24 km99%total7 km
- Meijndertslootord 2len here7.24 km100%total7 km
- Noordzeekanaalord 1len here6.76 km100%total7 km
- Van Ewijcksvaartord 1len here6.75 km100%total7 km
- Kanaal Omval Kolhornord 1len here6.75 km100%total7 km
- Bleekveldslootord 1len here6.30 km100%total6 km
- Vijfhuizertochtord 2len here6.17 km100%total6 km
- Noordergansslootord 2len here6.13 km100%total6 km
- 's Gravelandse Vaartord 1len here5.99 km100%total6 km
- Hoekvaartord 1len here5.92 km100%total6 km
- Aarkanaalord 2len here5.55 km30%total19 km
- Ringsloot van de Bergermeerord 2len here5.39 km100%total5 km
- Jan-de-Boerslootord 1len here5.04 km100%total5 km
- 2e Rijksbinnenhavenord 2len here5.01 km100%total5 km
- Westfriesche Vaartord 1len here4.95 km100%total5 km
- Dieringerord 1len here4.68 km100%total5 km
- Oudelandertochtord 1len here4.62 km100%total5 km
- IJord 4len here4.32 km100%total4 km
- Oude Gouword 2len here4.29 km100%total4 km
- Groetkanaalord 2len here4.28 km100%total4 km
- Molenvaartord 3len here4.10 km100%total4 km
- Aartswouder Hoofdwijkord 1len here3.57 km100%total4 km
- Langevlietord 1len here3.56 km100%total4 km
- Zuider Buiten Spaarneord 1len here3.56 km100%total4 km
- Naardertrekvaartord 1len here3.53 km100%total4 km
- Noordertochtord 2len here3.32 km100%total3 km
- Ursemmervaartord 1len here3.29 km100%total3 km
- Amsterdam-Rijnkanaalord 4len here3.29 km78%total4 km
- Wimmenummer Vaartord 1len here3.29 km100%total3 km
- Christoffel Plantijngrachtord 1len here3.21 km100%total3 km
- Balgzandkanaalord 3len here3.17 km100%total3 km
- Den Oeversche Vaartord 2len here2.97 km100%total3 km
- Amerikahavenord 1len here2.93 km100%total3 km
- Broekervaartord 2len here2.85 km100%total3 km
- Gouwslootord 2len here2.78 km100%total3 km
- Achterkanaalord 1len here2.73 km100%total3 km
- Boomslootord 2len here2.55 km100%total3 km
- Boxweideord 1len here2.48 km100%total2 km
- Waardtochtord 1len here2.48 km100%total2 km
- Zwakslootord 1len here2.39 km100%total2 km
- Meerslootord 2len here2.32 km100%total2 km
- Noordhollandsch Kanaalord 2len here2.23 km100%total2 km
- Molentogtord 1len here2.09 km100%total2 km
- Kerkeslootord 1len here2.06 km100%total2 km
- Het Schotord 1len here2.05 km100%total2 km
- Molenkilord 1len here1.90 km100%total2 km
- Westeinder Dijkslootord 1len here1.82 km100%total2 km
- De Tochtord 1len here1.82 km100%total2 km
- Leidsevaartord 1len here1.80 km100%total2 km
- Oosteindervaartord 1len here1.75 km41%total4 km
- Scheidingsvlietord 1len here1.66 km100%total2 km
- Ringvaart van de Wijde Wormerord 1len here1.56 km100%total2 km
- Zuidergansslootord 2len here1.55 km100%total2 km
- Purmerringvaartord 1len here1.53 km100%total2 km
- Klikjesslootord 1len here1.53 km101%total2 km
- Zuidertochtord 1len here1.40 km101%total1 km
- Westerhavenord 2len here1.39 km100%total1 km
- Westertochtord 2len here1.37 km100%total1 km
- Minervahavenord 1len here1.24 km100%total1 km
- Klinkerslootord 1len here1.24 km100%total1 km
- Kerkslootord 1len here1.16 km100%total1 km
- Wikgouword 1len here1.16 km100%total1 km
- Goyergrachtord 1len here1.13 km28%total4 km
- Zijkanaal Eord 2len here1.11 km100%total1 km
- Kolhornerdiepord 2len here0.54 km100%total1 km
- Huizerhoeford 4len here0.34 km4%total8 km
- Ringsloot Lisserpoelpolderord 1len here≈ tangenttotal2 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
5hab/km²
Night light
7,5nW
Built-up
413,2%
Pesticides
53,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas67
IUCN Not Reported · 32IUCN IV · 26IUCN II · 4IUCN Not Assigned · 3IUCN Not Applicable · 2🌊 Marine · 31
Waddenzee
IUCN IVNature Conservation Act · 2009
2 718 km²
Waddenzee
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 1991
2 718 km²
Wadden Sea
IUCN IVWetland of International Importance (Ramsar Site) · 1984
2 710 km²
Waddenzee
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2009
2 648 km²
Waddensea Area
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve · 1986
2 435 km²
Complete list67 protected areas
- Wadden SeaWorld Heritage Site (natural or mixed)IUCN Not Applicable200911 574 km²
- WaddenzeeNature Conservation ActIUCN IV20092 718 km²
- WaddenzeeSpecial Protection Area (Birds Directive)IUCN Not Reported19912 718 km²
- Wadden SeaWetland of International Importance (Ramsar Site)IUCN IV19842 710 km²
- WaddenzeeSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20092 648 km²
- Waddensea AreaUNESCO-MAB Biosphere ReserveIUCN Not Applicable19862 435 km²
- NoordzeekustzoneNature Conservation ActIUCN IV20101 445 km²
- North Sea Coastal AreaWetland of International Importance (Ramsar Site)IUCN IV20001 445 km²
- NoordzeekustzoneSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20091 445 km²
- NoordzeekustzoneSpecial Protection Area (Birds Directive)IUCN Not Reported20001 445 km²
- NoordzeekustzoneMarine Protected Area (OSPAR)IUCN Not Reported20091 416 km²
- IJsselmeerWetland of International Importance (Ramsar Site)IUCN IV20001 134 km²
- IJsselmeerNature Conservation ActIUCN IV20101 134 km²
- IJsselmeerSpecial Protection Area (Birds Directive)IUCN Not Reported20001 134 km²
- Markermeer & IJmeerNature Conservation ActIUCN IV2010685 km²
- Markermeer & IJmeerWetland of International Importance (Ramsar Site)IUCN II2000685 km²
- Markermeer & IJmeerSpecial Protection Area (Birds Directive)IUCN Not Reported2000685 km²
- NNN-NHNature Reserves owned by professional nature management organizationsIUCN Not Assigned2018566 km²
- NNN-ZHNature Reserves owned by professional nature management organizationsIUCN Not Assigned2014450 km²
- NNN-UTNature Reserves owned by professional nature management organizationsIUCN Not Assigned2004373 km²
- Kennemerland-ZuidSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201382 km²
- Kennemerland-ZuidNature Conservation ActIUCN IV201382 km²
- IJmeerWetland of International Importance (Ramsar Site)IUCN Not Reported200075 km²
- Oostelijke VechtplassenWetland of International Importance (Ramsar Site)IUCN IV200065 km²
- Oostelijke VechtplassenNature Conservation ActIUCN IV200465 km²
- Oostelijke VechtplassenSpecial Protection Area (Birds Directive)IUCN Not Reported200065 km²
- Noordhollands DuinreservaatNature Conservation ActIUCN IV201552 km²
- Noordhollands DuinreservaatSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201552 km²
- Duinen van TexelNational ParkIUCN II200247 km²
- Oostelijke VechtplassenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201344 km²
- Duinen en Lage Land TexelWetland of International Importance (Ramsar Site)IUCN II200041 km²
- Duinen en Lage Land TexelSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported200941 km²
- Duinen en Lage Land TexelNature Conservation ActIUCN IV201141 km²
- Zuid-KennemerlandNational ParkIUCN II199536 km²
- Duinen en Lage Land TexelSpecial Protection Area (Birds Directive)IUCN Not Reported200034 km²
- Ilperveld, Varkensland, Oostzanerveld & TwiskeNature Conservation ActIUCN IV200526 km²
- Ilperveld, Varkensland, Oostzanerveld & TwiskeSpecial Protection Area (Birds Directive)IUCN Not Reported200022 km²
- Ilperveld, Varkensland, Oostzanerveld & TwiskeSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201319 km²
- Wormer- en Jisperveld & KalverpolderNature Conservation ActIUCN IV200518 km²
- Polder ZeevangNature Conservation ActIUCN IV201018 km²
- Polder ZeevangSpecial Protection Area (Birds Directive)IUCN Not Reported200518 km²
- Wormer- en Jisperveld & KalverpolderSpecial Protection Area (Birds Directive)IUCN Not Reported200017 km²
- Schoorlse DuinenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201017 km²
- Schoorlse DuinenNature Conservation ActIUCN IV201017 km²
- Eemmeer & Gooimeer ZuidoeverNature Conservation ActIUCN IV201016 km²
- Eemmeer & Gooimeer ZuidoeverSpecial Protection Area (Birds Directive)IUCN Not Reported199416 km²
- Wormer- en Jisperveld & KalverpolderSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201515 km²
- EilandspolderSpecial Protection Area (Birds Directive)IUCN Not Reported200014 km²
- EilandspolderNature Conservation ActIUCN IV200014 km²
- NaardermeerWetland of International Importance (Ramsar Site)IUCN IV198012 km²
- NaardermeerNature Conservation ActIUCN IV198612 km²
- NaardermeerSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201312 km²
- NaardermeerSpecial Protection Area (Birds Directive)IUCN Not Reported198611 km²
- Markermeer & IJmeerSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201011 km²
- Polder WestzaanNature Conservation ActIUCN IV201311 km²
- Polder WestzaanSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201311 km²
- EilandspolderSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20138 km²
- Zwanenwater en PettemerduinenWetland of International Importance (Ramsar Site)IUCN IV19888 km²
- Zwanenwater & PettemerduinenNature Conservation ActIUCN IV19888 km²
- Zwanenwater & PettemerduinenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20138 km²
+ 7 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
Sub-administrations46
- AalsmeerMunicipality
- AlkmaarMunicipality
- AmstelveenMunicipality
- AmsterdamMunicipality
- BeemsterMunicipality
- BeverwijkMunicipality
- BlaricumMunicipality
- BloemendaalMunicipality
- CastricumMunicipality
- Den HelderMunicipality
- DiemenMunicipality
- DrechterlandMunicipality
- Edam-VolendamMunicipality
- EnkhuizenMunicipality
- Gooise MerenMunicipality
- HaarlemMunicipality
- HaarlemmermeerMunicipality
- HeemskerkMunicipality
- HeemstedeMunicipality
- HeerhugowaardMunicipality
- HeilooMunicipality
- HilversumMunicipality
- Hollands KroonMunicipality
- HoornMunicipality
- HuizenMunicipality
- KoggenlandMunicipality
- LandsmeerMunicipality
- LangedijkMunicipality
- LarenMunicipality
- MedemblikMunicipality
- OostzaanMunicipality
- OpmeerMunicipality
- Ouder-AmstelMunicipality
- PurmerendMunicipality
- SchagenMunicipality
- Stede BroecMunicipality
- TexelMunicipality
- UitgeestMunicipality
- UithoornMunicipality
- VelsenMunicipality
- WaterlandMunicipality
- WeespMunicipality
- WijdemerenMunicipality
- WormerlandMunicipality
- ZaanstadMunicipality
- ZandvoortMunicipality