Ontologia

HydroBASINS lev08 watershed · #2080031210

Bassin de Ljungan

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 2 administrative regions : Nordanstig, Sundsvall

70% lakePfafstetter: 24450410

Sub-basin area

311,4km²

Upstream area

12 869,9km²

Discharge

102,15m³/s

Mean elev.

110m

Administrative coverage

Hydrographic chain

▼ Drains into

Outlet (drains to ocean / endorheic)

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

18 intersecting protected areas

  • 2044128 Bengtsmyran & Billmyran

    IUCN Ia

    Nature Reserve

    1.76 km² overlap

  • 2022509 Bodmyran

    IUCN Ia

    Nature Reserve

    0.86 km² overlap

  • SK 583-2007

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.41 km² overlap

  • Grenforsen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.31 km² overlap

  • Grenforsen

    IUCN III

    Natura 2000 SCI

    0.31 km² overlap

  • 2000661 Grenforsen

    IUCN III

    Nature Reserve

    0.28 km² overlap

  • SK 644-2004

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.15 km² overlap

  • SK 584-2007

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.13 km² overlap

  • SK 582-2007

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.13 km² overlap

9 more protected areas

  • SK 248-2001

    IUCN Ia

    Habitat Protection Area

    0.08 km² overlap

  • Måckelmyran

    IUCN Not Assigned

    Natura 2000 SCI

    0.06 km² overlap

  • Måckelmyran

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.06 km² overlap

  • SK 31-2005

    IUCN Ia

    Habitat Protection Area

    0.05 km² overlap

  • SK 263-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.05 km² overlap

  • SK 426-2004

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • 2000660 Klampenborg

    IUCN III

    Nature Reserve

    0.01 km² overlap

  • Stormyran i Njurunda

    IUCN Not Assigned

    Natura 2000 SCI

    0.00 km² overlap

  • Stormyran i Njurunda

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.00 km² overlap

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

Species present

3 856 distinct species · 122 991 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

122 991 obs · 13 cellules
Obs. / cellule
≥ 58 224
16 123–58 223
7 672–16 122
5 422–7 671
< 5 422

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

Ecological tissue

Sample of 37 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 Ljungan : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 3 types (connectance 11.0%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
73
Connectance
0.110
Patrimoniales
2
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°

3,1°C

Annual rain

684mm

Moisture idx (CMI)

0,21

Runoff

375mm/an

PET

537mm

AET

421mm

Mean slope

4,5°

Water table

330cm

Forest

88%

Crops

16%

Urban

1%

Protected

0%

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