NNN-FR
IUCN Not AssignedNature Reserves owned by professional nature management organizations · 2014
2 178 km²
Municipality · NLD
Leeuwarden
Netherlands
CfbTemperate, no dry season, warm summer(100 %)
Species observed
6 892
Observations
559 055
Area
256,3km²
Ecological tissue
Sample of 41 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 Leeuwarden : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 119 interactions GloBI sur 6 types (connectance 13.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
42
Interactions affichées
119
Connectance
0.138
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
6 892 distinct species · 559 055 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,7°C
Annual rain
880mm
Warmest m°
19,9°C
Coldest m°
0,9°C
Elevation: -0 m on average (min -2 m, max 2 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,7°C
Annual rain
880mm
Warmest month
19,9°C
Coldest month
0,9°C
Mean alt.
-0m
Min
-2m
Max
2m
Std. dev.
1m
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
6,6
Org. C
80,9g/kg
Clay
36,9%
Sand
15,7%
Silt
47,3%
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
6,5
Org. C
93,6g/kg
Clay
35,9%
Sand
16,8%
Silt
47,3%
5–15 cm
pH H₂O
6,7
Org. C
52,8g/kg
Clay
36,1%
Sand
16,5%
Silt
47,5%
15–30 cm
pH H₂O
6,7
Org. C
96,3g/kg
Clay
38,8%
Sand
14,0%
Silt
47,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest6.9%
Crops39.9%
Built-up2.3%
Bare soil0.3%
Other (grassland, water…)50.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 18 lakes · 22 rivers
Hydrology metrics for this exact territory
Stream length here
70,7km
Lake surface here
9,59km²
Basins crossed
2
Max stream order
4
Max drainage
1 454km²
Discharge in basins
2,4m³/s
Mean precip.
791mm/an
Mean T°
8,8°C
Moisture idx
0,23
Max snow
14%
Mean runoff
476mm/an
Mean elev. (basins)
-1m
Watersheds crossing here
Lakes (18, top by area)
- Sneekermeerarea11,1 km²avg depth1.0 m
- Doelesleatarea2,9 km²avg depth0.9 m
- Wijde Eearea1,5 km²avg depth0.5 m
- Grutte Kritearea1,2 km²avg depth0.7 m
- Lac 1325846area0,9 km²avg depth1.6 m
- Lac 1325197area0,9 km²avg depth1.3 m
- Lac 1325899area0,9 km²avg depth1.4 m
- Lac 1325694area0,7 km²avg depth1.5 m
- Lac 1325731area0,4 km²avg depth1.4 m
9 more lakes
- Lac 1325239area0,4 km²avg depth1.4 m
- Lac 1325806area0,3 km²avg depth1.2 m
- Lac 1325517area0,3 km²avg depth1.1 m
- Lac 1325302area0,2 km²avg depth1.6 m
- Lac 1326133area0,2 km²avg depth1.4 m
- Lac 1325666area0,2 km²avg depth1.2 m
- Lac 1325282area0,2 km²avg depth1.2 m
- Lac 1325822area0,2 km²avg depth0.9 m
- Lac 1325752area0,1 km²avg depth1.1 m
Rivers / streams (22, ord ≥ 4)
- Prinses Margrietkanaalord 4len here14.02 km35%total40 km
- Dokkumer Ieord 3len here7.96 km75%total11 km
- Ultsjebuorster Opfeartord 2len here6.39 km100%total6 km
- Miedumer Djipord 3len here4.63 km100%total5 km
- Wielster Feartord 1len here4.56 km100%total5 km
- Hijumer Feartord 2len here4.11 km33%total12 km
- Kromme Grouord 1len here4.00 km96%total4 km
- Ultjsemearord 3len here3.32 km100%total3 km
- Monnike Eeord 2len here3.26 km44%total7 km
- Folkertssleatord 2len here2.48 km100%total2 km
- Boalserter Feartord 2len here2.33 km21%total11 km
- Kromme Ieord 3len here2.25 km19%total12 km
10 more river segmentssorted by Strahler order + length
- Van Harinxmakanaalord 4len here2.19 km11%total19 km
- It Wiidord 1len here2.15 km48%total4 km
- Pikmeer-oostord 3len here1.64 km100%total2 km
- Nauwe Greonsord 1len here1.35 km100%total1 km
- Frjentsjerter Feartord 1len here1.24 km21%total6 km
- De Swetteord 1len here1.09 km14%total8 km
- Jaanfeartord 2len here0.89 km49%total2 km
- Hearreweister Feartord 2len here0.67 km19%total3 km
- Alddjipord 1len here0.16 km4%total4 km
- Tersoalster Sylroedeord 4len here≈ tangenttotal6 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
2,4nW
Built-up
225,6%
Pesticides
44,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas12
IUCN Not Reported · 5IUCN IV · 4IUCN II · 2IUCN Not Assigned · 1🌊 Marine · 1
De Alde Feanen
IUCN IINational Park · 2006
34 km²
Sneekermeergebied
IUCN IVWetland of International Importance (Ramsar Site) · 2000
23 km²
Sneekermeergebied
IUCN IVNature Conservation Act · 2010
23 km²
Sneekermeergebied
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2000
23 km²
Alde Feanen
IUCN IIWetland of International Importance (Ramsar Site) · 1992
21 km²
Complete list12 protected areas
- NNN-FRNature Reserves owned by professional nature management organizationsIUCN Not Assigned20142 178 km²
- De Alde FeanenNational ParkIUCN II200634 km²
- SneekermeergebiedWetland of International Importance (Ramsar Site)IUCN IV200023 km²
- SneekermeergebiedNature Conservation ActIUCN IV201023 km²
- SneekermeergebiedSpecial Protection Area (Birds Directive)IUCN Not Reported200023 km²
- Alde FeanenWetland of International Importance (Ramsar Site)IUCN II199221 km²
- Alde FeanenNature Conservation ActIUCN IV199421 km²
- Alde FeanenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201321 km²
- Alde FeanenSpecial Protection Area (Birds Directive)IUCN Not Reported199421 km²
- Groote WielenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20116 km²
- Groote WielenSpecial Protection Area (Birds Directive)IUCN Not Reported20006 km²
- Groote WielenNature Conservation ActIUCN IV20106 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN