Ontologia

HydroBASINS lev08 watershed · #2080186050

Bassin de Öjån

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 5 administrative regions : Krokom, Ragunda, Sollefteå, Strömsund, Östersund

47% lakePfafstetter: 24450220

Sub-basin area

2 733,7km²

Upstream area

2 734,1km²

Discharge

38,75m³/s

Mean elev.

390m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Indalsälven792 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

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

Species present

2 754 distinct species · 179 557 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

179 557 obs · 116 cellules
Obs. / cellule
≥ 13 465
3 308–13 464
1 404–3 307
795–1 403
< 795

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 Öjån : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 6 types (connectance 14.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
67
Connectance
0.144
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°

2,0°C

Annual rain

602mm

Moisture idx (CMI)

0,21

Runoff

447mm/an

PET

477mm

AET

387mm

Mean slope

4,0°

Water table

254cm

Forest

89%

Crops

0%

Urban

0%

Protected

8%

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