Nature Reserves owned by professional nature management organizations · nld
NNN-GR
- Area
- 774 km²
- IUCN cat.
- Not Assigned
- Year
- 2016
Overview
- Designation
- Nature Reserves owned by professional nature management organizations
- Established
- 2016
- Managing authority
- Ministry EZ RVO/GISCC
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
4 565 distinct species · 243 612 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 NNN-GR : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 97 interactions GloBI sur 6 types (connectance 14.6%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology4 basins · 19 lakes · 30 rivers
Hydrology metrics for this exact territory
Stream length here
53,3km
Lake surface here
21,72km²
Basins crossed
4
Max stream order
4
Max drainage
9 336km²
Discharge in basins
2,3m³/s
Mean precip.
789mm/an
Mean T°
8,8°C
Moisture idx
0,17
Max snow
12%
Mean runoff
461mm/an
Mean elev. (basins)
3m
Watersheds crossing here
Lakes (19, top by area)
- Lauwersmeerarea21,4 km²avg depth3.3 m
- Zuidlaardermeerarea5,3 km²avg depth1.4 m
- Schildmeerarea2,7 km²avg depth0.8 m
- Paterswoldermeerarea2,3 km²avg depth1.7 m
- Leekstermeerarea1,7 km²avg depth0.8 m
- Hondhalstermeerarea1,4 km²avg depth0.6 m
- Lac 1325520area0,7 km²avg depth1.5 m
- Lac 1324607area0,6 km²avg depth1.6 m
- Lac 1326655area0,6 km²avg depth2.0 m
10 more lakes
- Lac 1324838area0,3 km²avg depth1.2 m
- Lac 1325575area0,2 km²avg depth1.1 m
- Lac 1325505area0,2 km²avg depth1.8 m
- Lac 1325240area0,2 km²avg depth1.4 m
- Lac 1325355area0,2 km²avg depth1.7 m
- Lac 1325451area0,1 km²avg depth1.8 m
- Lac 1325461area0,1 km²avg depth0.9 m
- Lac 1325462area0,1 km²avg depth1.3 m
- Lac 1325418area0,1 km²avg depth1.1 m
- Lac 1326307area0,1 km²avg depth1.0 m
Rivers / streams (30, ord ≥ 4)
- Mussel-Aa-kanaalord 2len here7.12 km24%total30 km
- Dwarsdiepord 2len here5.30 km34%total16 km
- Van Starkenborghkanaalord 4len here5.14 km19%total27 km
- Oude Diepord 1len here3.67 km36%total10 km
- Drentsche Diepord 3len here3.12 km78%total4 km
- Lettelberterdiepord 1len here2.72 km19%total15 km
- Robbengatsluisord 1len here2.71 km60%total5 km
- Reitdiepord 4len here2.63 km9%total29 km
- Verbindingskanaalord 3len here2.42 km19%total13 km
- Selwerderdiepjeord 2len here2.16 km74%total3 km
- Dokkumer Djipord 4len here2.00 km10%total19 km
- Wolddiepord 2len here1.98 km33%total6 km
18 more river segmentssorted by Strahler order + length
- Zoutkamperrilord 1len here1.81 km100%total2 km
- Westerwoldsche Aaord 3len here1.56 km26%total6 km
- Traansterwijkord 1len here1.43 km19%total7 km
- Aldfeartord 1len here1.13 km43%total3 km
- Tatjemaarord 2len here1.00 km41%total2 km
- Eemskanaalord 3len here0.76 km4%total18 km
- Blauwediepord 3len here0.72 km18%total4 km
- B.L. Tijdenskanaalord 2len here0.72 km8%total9 km
- Hunzeord 3len here0.68 km2%total28 km
- Winschoterdiepord 3len here0.65 km7%total9 km
- Broekstermaarord 1len here0.62 km15%total4 km
- Haren-Rütenbrock-Kanalord 1len here0.59 km5%total11 km
- Ruiten-Aa-kanaalord 2len here0.17 km1%total22 km
- Termunterzijldiepord 3len here0.15 km1%total11 km
- Wymeerer Sieltieford 3len here0.15 km1%total16 km
- Winschoterdiepord 3len here0.14 km1%total24 km
- Oostpolderbermkanaalord 1len here0.07 km3%total2 km
- Munnikeslootord 3len here≈ tangenttotal18 km
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
- 53.40401, 6.91393
- 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.