Ontologia

HydroBASINS lev08 watershed · #2080056820

Bassin de Närkån

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 1 administrative regions : Gotland

Pfafstetter: 24500004

Sub-basin area

149,9km²

Upstream area

150km²

Discharge

1,69m³/s

Mean elev.

28m

Administrative coverage

1 dept-equivalent regions (GADM L2)

29 intersecting protected areas

  • SK 438-2015

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.19 km² overlap

  • 2014396 Sigdes

    IUCN Ia

    Nature Reserve

    0.18 km² overlap

  • SK 147-2001

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.16 km² overlap

  • Brunnsrar

    IUCN Not Assigned

    Natura 2000 SCI

    0.16 km² overlap

  • Brunnsrar

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.16 km² overlap

  • Lausvik

    IUCN V

    Natura 2000 SPA

    0.08 km² overlap

  • Lausvik

    IUCN V

    Natura 2000 SCI

    0.08 km² overlap

  • Lausvik

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.08 km² overlap

  • Lausvik

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.08 km² overlap

20 more protected areas

  • Juvesvät

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.08 km² overlap

  • Juvesvät

    IUCN Not Assigned

    Natura 2000 SCI

    0.08 km² overlap

  • SK 398-2001

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.08 km² overlap

  • 2000462 Gotlandskusten

    IUCN V

    Nature Conservation Area

    0.08 km² overlap

  • SK 862-2005

    IUCN Ia

    Habitat Protection Area

    0.08 km² overlap

  • Fride

    IUCN Not Assigned

    Natura 2000 SCI

    0.08 km² overlap

  • Fride

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.08 km² overlap

  • SK 627-2002

    IUCN Ia

    Habitat Protection Area

    0.07 km² overlap

  • SK 74-2008

    IUCN Ia

    Habitat Protection Area

    0.04 km² overlap

  • SK 508-2017

    IUCN Ia

    Habitat Protection Area

    0.04 km² overlap

  • SK 164-1998

    IUCN Ia

    Habitat Protection Area

    0.03 km² overlap

  • SK 75-2008

    IUCN Ia

    Habitat Protection Area

    0.03 km² overlap

  • 2000115 Bosarve naturskog

    IUCN Ia

    Nature Reserve

    0.02 km² overlap

  • Bosarve i Lye

    IUCN Ia

    Natura 2000 SCI

    0.02 km² overlap

  • Bosarve i Lye

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.02 km² overlap

  • SK 1054-2002

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.02 km² overlap

  • SK 378-2000

    IUCN Ia

    Habitat Protection Area

    0.01 km² overlap

  • SK 153-1998

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

  • SK 152-1998

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

  • SK 151-1998

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

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

Species present

4 781 distinct species · 104 012 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

104 012 obs · 6 cellules
Obs. / cellule
≥ 45 171
45 171–45 170
19 318–45 170
13 255–19 317
< 13 255

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 Närkån : 22 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 3 types (connectance 13.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
56
Connectance
0.138
Patrimoniales
4
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°

7,3°C

Annual rain

530mm

Moisture idx (CMI)

0,01

Runoff

217mm/an

PET

523mm

AET

387mm

Mean slope

0,7°

Water table

45cm

Forest

36%

Crops

48%

Urban

0%

Protected

0%

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