Ontologia

HydroBASINS lev08 watershed · #2080245140

Bassin de Gärsån

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 4 administrative regions : Arboga, Eskilstuna, Katrineholm, Vingåker

209% lakePfafstetter: 24472062

Sub-basin area

276,3km²

Upstream area

276,3km²

Discharge

1,65m³/s

Mean elev.

53m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Eskilstunaån1016 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Tåkenön

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.32 km² overlap

  • Tåkenön

    IUCN Not Assigned

    Natura 2000 SCI

    1.32 km² overlap

  • 2029049 Strandhagen

    IUCN Ia

    Nature Reserve

    0.33 km² overlap

  • Rösätter-Viksätter

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.32 km² overlap

  • Rösätter-Viksätter

    IUCN Not Assigned

    Natura 2000 SCI

    0.32 km² overlap

  • Kalkugnstorp

    IUCN Not Assigned

    Natura 2000 SCI

    0.20 km² overlap

  • Kalkugnstorp

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.20 km² overlap

  • Ödesängssjön

    IUCN Not Assigned

    Natura 2000 SCI

    0.17 km² overlap

  • Ödesängssjön

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.17 km² overlap

21 more protected areas

  • 2010866 Ritorp

    IUCN Ia

    Nature Reserve

    0.14 km² overlap

  • 2001874 Väsby

    IUCN IV

    Nature Reserve

    0.14 km² overlap

  • Väsby

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.14 km² overlap

  • Väsby

    IUCN IV

    Natura 2000 SCI

    0.14 km² overlap

  • A627288

    IUCN Not Applicable

    Voluntary set-aside areas

    0.13 km² overlap

  • SK 613-2002

    IUCN Ia

    Habitat Protection Area

    0.06 km² overlap

  • SK 127-2001

    IUCN Ia

    Habitat Protection Area

    0.05 km² overlap

  • SK 466-2004

    IUCN Ia

    Habitat Protection Area

    0.05 km² overlap

  • SK 951-2004

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.04 km² overlap

  • SK 614-2002

    IUCN Ia

    Habitat Protection Area

    0.04 km² overlap

  • SK 310-2017

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.04 km² overlap

  • SK 739-2002

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.04 km² overlap

  • SK 319-1997

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • SK 35-1996

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • Nya kärren

    IUCN Not Assigned

    Natura 2000 SCI

    0.02 km² overlap

  • Nya kärren

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.02 km² overlap

  • Kila

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.02 km² overlap

  • Kila

    IUCN Not Assigned

    Natura 2000 SCI

    0.02 km² overlap

  • SK 465-2000

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • SK 413-2018

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • SK 252-2004

    IUCN Ia

    Habitat Protection Area

    0.01 km² overlap

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

Species present

3 736 distinct species · 75 371 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

75 371 obs · 11 cellules
Obs. / cellule
≥ 15 954
13 662–15 953
7 231–13 661
4 519–7 230
< 4 519

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

Ecological tissue

Sample of 29 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 Gärsån : 19 espèces reliées par 84 interactions GloBI sur 6 types (connectance 20.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
84
Connectance
0.207
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°

6,2°C

Annual rain

601mm

Moisture idx (CMI)

0,00

Runoff

189mm/an

PET

603mm

AET

443mm

Mean slope

1,6°

Water table

165cm

Forest

54%

Crops

27%

Urban

0%

Protected

0%

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