Ontologia

HydroBASINS lev08 watershed · #2080190120

Bassin de Indalsälven

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 : Ragunda, Sollefteå, Sundsvall

40% lakePfafstetter: 24450216

Sub-basin area

309,4km²

Upstream area

309,4km²

Discharge

3,62m³/s

Mean elev.

300m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Indalsälven275 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

14 intersecting protected areas

  • Revaberget

    IUCN Ia

    Natura 2000 SCI

    0.99 km² overlap

  • Revaberget

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.99 km² overlap

  • 2048150 Revaberget

    IUCN Ia

    Nature Reserve

    0.96 km² overlap

  • Billtjärn

    IUCN Ia

    Natura 2000 SCI

    0.76 km² overlap

  • 2000900 Billtjärns urskog

    IUCN Ia

    Nature Reserve

    0.76 km² overlap

  • Billtjärn

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.76 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.15 km² overlap

  • Kvarnån Utanede

    IUCN Not Assigned

    Natura 2000 SCI

    0.13 km² overlap

  • Kvarnån Utanede

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.13 km² overlap

5 more protected areas

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

Species present

2 278 distinct species · 25 569 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

25 569 obs · 12 cellules
Obs. / cellule
≥ 5 319
5 149–5 318
3 380–5 148
2 108–3 379
< 2 108

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

Ecological tissue

Sample of 35 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 Indalsälven : 28 espèces reliées par 40 interactions GloBI sur 5 types (connectance 6.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
40
Connectance
0.064
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°

1,8°C

Annual rain

632mm

Moisture idx (CMI)

0,20

Runoff

369mm/an

PET

506mm

AET

406mm

Mean slope

4,8°

Water table

251cm

Forest

94%

Crops

0%

Urban

0%

Protected

0%

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