Ontologia

HydroBASINS lev08 watershed · #2080198860

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 : Sundsvall, Ånge

45% lakePfafstetter: 24450430

Sub-basin area

795,7km²

Upstream area

12 252,6km²

Discharge

95,14m³/s

Mean elev.

222m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ljungan311 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

29 intersecting protected areas

20 more protected areas

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

Species present

4 727 distinct species · 88 258 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

88 258 obs · 34 cellules
Obs. / cellule
≥ 6 720
4 803–6 719
3 145–4 802
2 612–3 144
< 2 612

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

Ecological tissue

Sample of 32 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 : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 5 types (connectance 13.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
70
Connectance
0.133
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°

2,6°C

Annual rain

655mm

Moisture idx (CMI)

0,19

Runoff

303mm/an

PET

528mm

AET

419mm

Mean slope

6,6°

Water table

337cm

Forest

93%

Crops

0%

Urban

1%

Protected

1%

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