Ontologia

HydroBASINS lev08 watershed · #2080033450

Bassin de Skuggälven

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 across 2 countries : Halden, Strömstad, Tanum

30% lakePfafstetter: 24490006

Sub-basin area

265,6km²

Upstream area

265,6km²

Discharge

3,53m³/s

Mean elev.

79m

Administrative coverage

3 dept-equivalent regions (GADM L2)

11 intersecting protected areas

  • Strömsvattnet

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.95 km² overlap

  • Strömsvattnet

    IUCN IV

    Natura 2000 SCI

    1.95 km² overlap

  • 2000582 Strömsvattnet

    IUCN IV

    Nature Reserve

    1.94 km² overlap

  • Lurkevann

    IUCN Ia

    Nature Reserve

    0.43 km² overlap

  • SK 337-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.25 km² overlap

  • 2025541 Färingsön

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

    0.25 km² overlap

  • SK 338-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.20 km² overlap

  • 2025599 Färnön

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

    0.09 km² overlap

  • SK 82-2005

    IUCN Ia

    Habitat Protection Area

    0.08 km² overlap

2 more protected areas

  • SK 163-2010

    IUCN Ia

    Habitat Protection Area

    0.03 km² overlap

  • SK 155-2017

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

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

Species present

3 244 distinct species · 64 551 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

64 551 obs · 10 cellules
Obs. / cellule
≥ 18 105
18 105–18 104
6 120–18 104
5 175–6 119
< 5 175

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

Ecological tissue

Sample of 28 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 Skuggälven : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 5 types (connectance 16.1%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
85
Connectance
0.161
Patrimoniales
1
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°

6,7°C

Annual rain

795mm

Moisture idx (CMI)

0,36

Runoff

551mm/an

PET

508mm

AET

433mm

Mean slope

3,8°

Water table

245cm

Forest

89%

Crops

8%

Urban

2%

Protected

1%

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