Wetland of International Importance (Ramsar Site) · grl
Heden
- Area
- 2 619 km²
- IUCN cat.
- IV
- Year
- 1988
Overview
- Designation
- Wetland of International Importance (Ramsar Site)
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
- Established
- 1988
- Managing authority
- Pinngortitamut Avatangiisinullu Naalakkersuisoqarfik Departementet for Natur og Miljø Ministry of Nature and Environment
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
141 distinct species · 627 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Heden : 25 espèces dont 5 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology16 basins · 0 lakes · 48 rivers
Hydrology metrics for this exact territory
Stream length here
1 042,3km
Basins crossed
16
Max stream order
4
Max drainage
2 197km²
Discharge in basins
120,9m³/s
Mean precip.
490mm/an
Mean T°
-8,1°C
Moisture idx
0,59
Max snow
82%
Mean runoff
574mm/an
Mean elev. (basins)
191m
Watersheds crossing here
- Bassin de Sjællandselvsub-area849,3 km²overlap733.52 km²28%
- Bassin de Fegin Elvsub-area589 km²overlap471.00 km²18%
- Bassin de Fegin Elvsub-area600 km²overlap463.57 km²18%
- Bassin de Draba Sibirica Elvsub-area356,1 km²overlap206.28 km²8%
- Basin #93240sub-area125,3 km²overlap126.28 km²5%
- Bassin de Draba Sibirica Elvsub-area101,7 km²overlap98.06 km²4%
- Basin #93100sub-area386 km²overlap78.59 km²3%
- Bassin de Draba Sibirica Elvsub-area115,9 km²overlap73.81 km²3%
- Bassin de Aucellaelvsub-area607,6 km²overlap42.01 km²2%
7 more basinssorted by overlap
- Bassin de Draba Sibirica Elvsub-area141,5 km²overlap39.64 km²2%
- Bassin de Fegin Elvsub-area36 km²overlap24.98 km²1%
- Bassin de Kaporniagaqarpiksub-area582 km²overlap6.05 km²0%
- Bassin de Schuchert Flodsub-area8,7 km²overlap1.92 km²0%
- Bassin de Fynselvsub-area585,7 km²overlap1.10 km²0%
- Basin #93090sub-area1 km²overlap1.04 km²0%
- Bassin de Depotelvsub-area746,9 km²overlap0.02 km²0%
Rivers / streams (48, ord ≥ 4)
- Draba Sibirica Elvord 4len here315.46 km97%total324 km
- Fegin Elvord 2len here212.84 km95%total225 km
- Fegin Elvord 1len here36.36 km100%total36 km
- Fegin Elvord 2len here26.05 km100%total26 km
- Fegin Elvord 1len here21.80 km100%total22 km
- Sjællandselvord 1len here20.85 km92%total23 km
- Sjællandselvord 1len here19.42 km66%total30 km
- Sjællandselvord 1len here19.35 km79%total25 km
- Olympelvenord 2len here18.93 km100%total19 km
- Olympelvenord 1len here17.86 km89%total20 km
- Olympelvenord 1len here15.39 km100%total15 km
- Falsterselvord 2len here15.03 km100%total15 km
36 more river segmentssorted by Strahler order + length
- Fegin Elvord 2len here14.23 km100%total14 km
- Olympelvenord 1len here14.00 km100%total14 km
- Lodin Elvord 1len here13.98 km100%total14 km
- Olympelvenord 1len here13.06 km100%total13 km
- Olympelvenord 1len here12.97 km100%total13 km
- Olympelvenord 1len here12.13 km100%total12 km
- Olympelvenord 1len here11.97 km100%total12 km
- Sjællandselvord 2len here11.85 km55%total21 km
- Sjællandselvord 2len here11.72 km74%total16 km
- Fegin Elvord 2len here11.44 km100%total11 km
- Olympelvenord 1len here11.21 km100%total11 km
- Aucellaelvord 2len here10.85 km48%total23 km
- Blokelvord 2len here9.69 km100%total10 km
- Lodin Elvord 1len here9.66 km100%total10 km
- Regneelvord 1len here9.35 km53%total18 km
- Sjællandselvord 1len here9.33 km82%total11 km
- Sjællandselvord 1len here9.25 km35%total27 km
- Sjællandselvord 1len here9.07 km63%total14 km
- Sjællandselvord 1len here8.78 km67%total13 km
- Lodin Elvord 1len here8.77 km100%total9 km
- Fegin Elvord 2len here8.65 km100%total9 km
- Olympelvenord 2len here8.37 km100%total8 km
- Jyllandselvord 1len here8.33 km100%total8 km
- Jyllandselvord 1len here8.19 km100%total8 km
- Olympelvenord 1len here8.14 km100%total8 km
- Sjællandselvord 1len here6.50 km50%total13 km
- Lollandselvord 1len here6.50 km100%total6 km
- Schuchert Flodord 4len here5.48 km3%total169 km
- Jyllandselvord 1len here5.37 km100%total5 km
- Sjællandselvord 1len here4.28 km80%total5 km
- Jyllandselvord 1len here2.36 km100%total2 km
- Blokelvord 1len here2.15 km100%total2 km
- Aucellaelvord 3len here2.13 km11%total19 km
- Sjællandselvord 2len here2.10 km35%total6 km
- Aucellaelvord 1len here0.76 km5%total15 km
- Aucellaelvord 1len here0.36 km3%total11 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
- 70.98077, -23.84297
- 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.