Wetland of International Importance (Ramsar Site) · nld
Oudegaasterbrekken, Fluessen and surroundings
- Area
- 31 km²
- IUCN cat.
- IV
- Year
- 2000
Overview
- Designation
- Wetland of International Importance (Ramsar Site)
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
- Established
- 2000
- Managing authority
- Management authorities: - It Fryske Gea, see: https://www.itfryskegea.nl/natuurgebied/fluezen/ and https://www.itfryskegea.nl/natuurgebied/muntsebuorsterpolder/ - Staatsbosbeheer, see: https://www.staatsbosbeheer.nl/natuurgebieden/sudwest-fryslan
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 281 distinct species · 18 284 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 49 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).
Indicateurs du tissu écologique
Tissu écologique de Oudegaasterbrekken, Fluessen and surroundings : 37 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 138 interactions GloBI sur 5 types (connectance 10.8%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology1 basins · 11 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
15,3km
Lake surface here
21,54km²
Basins crossed
1
Max stream order
2
Max drainage
1 454km²
Discharge in basins
0,1m³/s
Mean precip.
792mm/an
Mean T°
8,8°C
Moisture idx
0,25
Max snow
13%
Mean runoff
476mm/an
Mean elev. (basins)
-1m
Watersheds crossing here
Lakes (11, top by area)
- Heegermeerarea20,1 km²avg depth1.0 m
- Vlakke Brekkenarea2,7 km²avg depth0.9 m
- Morraarea1,9 km²avg depth0.7 m
- Groote Gaastmeerarea1,1 km²avg depth0.6 m
- Ringwielarea1 km²avg depth0.6 m
- Lac 1326506area0,8 km²avg depth1.4 m
- Lac 1326969area0,3 km²avg depth1.3 m
- Lac 1326997area0,3 km²avg depth1.2 m
- Lac 1326312area0,2 km²avg depth1.3 m
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 52.91785, 5.48988
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.