Wadden Sea
IUCN Not ApplicableWorld Heritage Site (natural or mixed) · 2009
11 574 km²
Water body · NLD
IJsselmeer
Netherlands
CfbTemperate, no dry season, warm summer(100 %)
Species observed
8 265
Observations
1 035 080
Area
1 999,2km²
Ecological tissue
Sample of 30 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 IJsselmeer : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 17.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
75
Connectance
0.172
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
8 265 distinct species · 1 035 080 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,2°C
Annual rain
879mm
Warmest m°
19,8°C
Coldest m°
1,8°C
Elevation: -4 m on average (min -12 m, max 4 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,2°C
Annual rain
879mm
Warmest month
19,8°C
Coldest month
1,8°C
Mean alt.
-4m
Min
-12m
Max
4m
Std. dev.
2m
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
70,1g/kg
Clay
31,0%
Sand
26,9%
Silt
42,0%
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
86,0g/kg
Clay
30,5%
Sand
27,6%
Silt
41,9%
5–15 cm
pH H₂O
6,8
Org. C
48,7g/kg
Clay
30,5%
Sand
27,4%
Silt
42,1%
15–30 cm
pH H₂O
6,8
Org. C
75,7g/kg
Clay
32,1%
Sand
25,8%
Silt
42,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest4.4%
Crops8.8%
Built-up0.1%
Bare soil0.7%
Other (grassland, water…)85.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology15 basins · 7 lakes · 44 rivers
Hydrology metrics for this exact territory
Stream length here
88,4km
Lake surface here
1 874,89km²
Basins crossed
15
Max stream order
5
Max drainage
10 570km²
Discharge in basins
39,8m³/s
Mean precip.
787mm/an
Mean T°
9,1°C
Moisture idx
0,17
Max snow
15%
Mean runoff
483mm/an
Mean elev. (basins)
5m
Watersheds crossing here
- Bassin de Grote Valkse beeksub-area1 668,1 km²overlap98.06 km²5%
- Bassin de WV Roggebotsub-area169,7 km²overlap38.41 km²2%
- Bassin de Hoge Vaartsub-area816,7 km²overlap24.93 km²1%
- Bassin de Vledder- en Wapserveensche Aasub-area382,3 km²overlap22.27 km²1%
- Bassin de Ringslootsub-area1 905,4 km²overlap20.02 km²1%
- Bassin de Van Harinxmakanaalsub-area1 453,9 km²overlap18.32 km²1%
- Bassin de Kleeftochtsub-area306,6 km²overlap14.68 km²1%
- Bassin de IJsselsub-area1 043,5 km²overlap4.53 km²0%
- Basin #23230sub-area26,5 km²overlap3.88 km²0%
6 more basinssorted by overlap
- Bassin de Naardertrekvaartsub-area23 km²overlap2.30 km²0%
- Basin #23380sub-area2,2 km²overlap0.70 km²0%
- Bassin de De Tsjonger of De Kuundersub-area924,7 km²overlap0.61 km²0%
- Bassin de Beemsterringvaartsub-area794,8 km²overlap0.54 km²0%
- Bassin de Vechtsub-area371,4 km²overlap0.17 km²0%
- Bassin de Prinses Margrietkanaalsub-area889,5 km²overlap0.10 km²0%
Lakes (7, top by area)
Rivers / streams (44, ord ≥ 4)
- Schokkerhavenord 5len here8.14 km100%total8 km
- Huizerhoeford 4len here7.93 km96%total8 km
- Puttenerbeekord 2len here6.82 km46%total15 km
- Toegangsgeul Spakenburgord 3len here6.43 km97%total7 km
- Pierlandord 3len here6.40 km100%total6 km
- Ramsdiepord 5len here6.05 km77%total8 km
- WV Roggebotord 2len here5.71 km39%total15 km
- RCN Zeewoldeord 3len here4.17 km95%total4 km
- IJsselord 4len here3.57 km3%total114 km
- Reddingsbrigade Naardenord 4len here3.10 km93%total3 km
- Toegangsgeul Arkervaartord 3len here3.01 km60%total5 km
- Tulpeilandord 1len here2.81 km100%total3 km
32 more river segmentssorted by Strahler order + length
- De Wielord 3len here2.81 km100%total3 km
- Zilverbeekord 2len here2.26 km18%total12 km
- Vollenhover Kanaalord 2len here1.83 km12%total16 km
- Zwarte Waterord 5len here1.75 km14%total13 km
- Bijsselsebeekord 1len here1.64 km31%total5 km
- Sloot Lorentzstraatord 1len here1.49 km24%total6 km
- Lemstervaartord 3len here1.01 km5%total20 km
- Schuitenbeekord 3len here0.98 km71%total1 km
- Amsterdam-Rijnkanaalord 4len here0.94 km22%total4 km
- Eemord 4len here0.91 km5%total20 km
- Pangelerbeekord 2len here0.79 km7%total11 km
- Goyergrachtord 1len here0.74 km18%total4 km
- Arkemheense Beekord 1len here0.71 km7%total10 km
- Krakenburgbeekord 1len here0.66 km25%total3 km
- Horstse Beekord 1len here0.63 km9%total7 km
- Nekkeveldslootord 1len here0.63 km14%total5 km
- Knapzakbeekord 2len here0.48 km6%total8 km
- Arkersteegslootord 1len here0.45 km9%total5 km
- Westerfaartord 1len here0.41 km33%total1 km
- Lage Vaartord 3len here0.38 km2%total17 km
- Vechtord 3len here0.34 km1%total33 km
- Molkfeartord 1len here0.33 km5%total7 km
- Gaaster Feartord 1len here0.32 km10%total3 km
- Wij-Landord 3len here0.32 km21%total2 km
- Klutentochtord 1len here0.29 km8%total4 km
- Laakord 1len here0.27 km6%total5 km
- Arkersloot Oostord 2len here0.26 km8%total3 km
- Goaiumer Feartord 1len here0.23 km6%total4 km
- Zuidermeertochtord 3len here0.14 km4%total4 km
- Streamkanaalord 4len here0.12 km1%total14 km
- Purmerringvaartord 1len here0.05 km1%total8 km
- Zeilhavenord 3len here0.05 km4%total1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,3nW
Built-up
7,7%
Pesticides
55,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas49
IUCN Not Reported · 20IUCN IV · 18IUCN Not Assigned · 6IUCN II · 4IUCN Not Applicable · 1🌊 Marine · 18
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
NNN-FR
IUCN Not AssignedNature Reserves owned by professional nature management organizations · 2014
2 178 km²
Complete list49 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
- NNN-FRNature Reserves owned by professional nature management organizationsIUCN Not Assigned20142 178 km²
- NNN-GENature Reserves owned by professional nature management organizationsIUCN Not Assigned20141 406 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-OVNature Reserves owned by professional nature management organizationsIUCN Not Assigned2017632 km²
- NNN-NHNature Reserves owned by professional nature management organizationsIUCN Not Assigned2018566 km²
- NNN-UTNature Reserves owned by professional nature management organizationsIUCN Not Assigned2004373 km²
- Nieuw LandNational ParkIUCN II2018289 km²
- NNN-FLNature Reserves owned by professional nature management organizationsIUCN Not Assigned2010263 km²
- RijntakkenNature Conservation ActIUCN IV2014231 km²
- RijntakkenSpecial Protection Area (Birds Directive)IUCN Not Reported1996231 km²
- WiedenWetland of International Importance (Ramsar Site)IUCN II200090 km²
- De WiedenNature Conservation ActIUCN IV200390 km²
- De WiedenSpecial Protection Area (Birds Directive)IUCN Not Reported200090 km²
- RijntakkenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201484 km²
- IJmeerWetland of International Importance (Ramsar Site)IUCN Not Reported200075 km²
- VeluwerandmerenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201062 km²
- VeluwerandmerenSpecial Protection Area (Birds Directive)IUCN Not Reported200062 km²
- VeluwerandmerenNature Conservation ActIUCN IV201062 km²
- VeluwerandmerenWetland of International Importance (Ramsar Site)IUCN IV200061 km²
- OostvaardersplassenWetland of International Importance (Ramsar Site)IUCN II198955 km²
- OostvaardersplassenNature Conservation ActIUCN IV201055 km²
- OostvaardersplassenSpecial Protection Area (Birds Directive)IUCN Not Reported198955 km²
- Ketelmeer & VossemeerNature Conservation ActIUCN IV201138 km²
- Ketelmeer and VossemeerWetland of International Importance (Ramsar Site)IUCN IV200038 km²
- Ketelmeer & VossemeerSpecial Protection Area (Birds Directive)IUCN Not Reported200038 km²
- IJsselmeerSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201024 km²
- Zwarte MeerWetland of International Importance (Ramsar Site)IUCN IV199522 km²
- Zwarte MeerNature Conservation ActIUCN IV201022 km²
- Zwarte MeerSpecial Protection Area (Birds Directive)IUCN Not Reported199522 km²
- Zwarte MeerSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201022 km²
- Eemmeer & Gooimeer ZuidoeverNature Conservation ActIUCN IV201016 km²
- Eemmeer & Gooimeer ZuidoeverSpecial Protection Area (Birds Directive)IUCN Not Reported199416 km²
- Uiterwaarden Zwarte Water en VechtNature Conservation ActIUCN IV200015 km²
- ArkemheenNature Conservation ActIUCN IV201014 km²
- ArkemheenSpecial Protection Area (Birds Directive)IUCN Not Reported201114 km²
- Uiterwaarden Zwarte Water en VechtSpecial Protection Area (Birds Directive)IUCN Not Reported200014 km²
- Markermeer & IJmeerSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201011 km²
- LepelaarplassenSpecial Protection Area (Birds Directive)IUCN Not Reported19944 km²
- LepelaarplassenNature Conservation ActIUCN IV20104 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN