Ontologia

HydroLAKES lake · #158987

Røynevannet

Natural lakeNorwayEurope 59 m

Surface area

1,14km²

Avg depth

10,7m

Volume

12,18km³

Shoreline

13,2km

Administrative coverage

Parent watershed

hybas-2080257170203 km² · upstream 203 km²

2 dept-equivalent regions (GADM L2)

  • Arendal
    Aust-Agder · Norway
    0.78 km²
    68.0% of lake
  • Grimstad
    Aust-Agder · Norway
    0.37 km²
    32.0% of lake

Computed live · HydroLAKES × GADM × WDPA · cached after first hit.

Species present

977 distinct species · 2 109 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 109 obs · 1 cellules
Obs. / cellule
≥ 2 109
2 109–2 108
2 109–2 108
2 109–2 108
< 2 109

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 43 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 Røynevannet : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 5 types (connectance 9.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
88
Connectance
0.093
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Lake statistics (HydroLAKES)

Surface

1,14km²

Avg depth

10,7m

Volume

12,180km³

Watershed

47km²

Shoreline

13,2km

Shore dev. idx

3,49

Residence time

100days

Elevation

59m

HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.