Ontologia

HydroBASINS lev08 watershed · #2080033300

Bassin de Osbäcken

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 : Göteborg, Kungälv, Öckerö

Coastal basin 7% lakePfafstetter: 24479090

Sub-basin area

150,4km²

Upstream area

150,4km²

Discharge

0m³/s

Mean elev.

12m

Administrative coverage

3 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

  • Sälöfjorden

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    3.17 km² overlap

  • Sälöfjorden

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    3.17 km² overlap

  • 2000795 Rörö

    IUCN V

    Nature Reserve

    2.92 km² overlap

  • 2001782 Ersdalen

    IUCN IV

    Nature Reserve

    2.85 km² overlap

  • 2000804 Vinga-skärgården

    IUCN V

    Nature Reserve

    1.88 km² overlap

  • Torsviken

    IUCN Not Assigned

    Natura 2000 SPA

    1.46 km² overlap

  • Torsviken

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.46 km² overlap

  • 2025652 Buskär, Trojeskär, Buskärs Knöte

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

    0.36 km² overlap

  • 2000796 Sillvik

    IUCN IV

    Nature Reserve

    0.29 km² overlap

  • Sillvik

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.29 km² overlap

  • Sillvik

    IUCN IV

    Natura 2000 SCI

    0.29 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.27 km² overlap

  • 2025529 Måvholmen

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

    0.25 km² overlap

  • 2025729 Stora Rossen

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

    0.14 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.11 km² overlap

  • 2025714 Fånyttan

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

    0.11 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.11 km² overlap

  • 2056681 Grötö Knöten

    IUCN IV

    Nature Reserve

    0.11 km² overlap

  • 2025733 Torrbeskär

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

    0.08 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.07 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.07 km² overlap

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

Species present

7 282 distinct species · 629 104 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

629 104 obs · 4 cellules
Obs. / cellule
≥ 456 657
456 657–456 656
77 026–456 656
77 026–77 025
< 77 026

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 Osbäcken : 17 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 3 types (connectance 17.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
51
Connectance
0.170
Patrimoniales
3
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°

7,2°C

Annual rain

693mm

Moisture idx (CMI)

0,20

Runoff

499mm/an

PET

551mm

AET

440mm

Mean slope

1,6°

Water table

79cm

Forest

45%

Crops

30%

Urban

27%

Protected

13%

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