Ontologia

HydroBASINS lev08 watershed · #2080171580

Bassin de Helliskvísl

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 3 administrative regions : Holta- og Landasveit, Rangárvallahreppur, Villingaholtshreppur

17% lakePfafstetter: 27106005

Sub-basin area

325km²

Upstream area

3 466,2km²

Discharge

197,03m³/s

Mean elev.

536m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ytri-Rangá924 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Fjallabak

    IUCN V

    Nature Reserve

    127.15 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

147 distinct species · 366 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

366 obs · 6 cellules
Obs. / cellule
≥ 181
181–180
117–180
29–116
< 29

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

Ecological tissue

Sample of 25 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 Bassin de Helliskvísl : 16 espèces reliées par 41 interactions GloBI sur 2 types (connectance 13.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
41
Connectance
0.137
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydroclimate (BasinATLAS lev08)

Mean T°

2,1°C

Annual rain

1 424mm

Moisture idx (CMI)

0,78

Runoff

1 794mm/an

PET

316mm

AET

316mm

Mean slope

6,5°

Water table

0cm

Forest

0%

Crops

0%

Urban

0%

Protected

39%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)