Ontologia

HydroBASINS lev08 watershed · #2080246570

Bassin de Sandaälven

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 4 administrative regions : Arvika, Bengtsfors, Säffle, Årjäng

178% lakePfafstetter: 24480202

Sub-basin area

746,1km²

Upstream area

746,2km²

Discharge

8,28m³/s

Mean elev.

174m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Dalslands kanal1447 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 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

3 537 distinct species · 88 429 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

88 429 obs · 28 cellules
Obs. / cellule
≥ 19 631
7 083–19 630
3 397–7 082
2 181–3 396
< 2 181

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

Ecological tissue

Sample of 31 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 Sandaälven : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 4 types (connectance 11.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
51
Connectance
0.110
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°

5,4°C

Annual rain

758mm

Moisture idx (CMI)

0,28

Runoff

351mm/an

PET

545mm

AET

450mm

Mean slope

3,5°

Water table

325cm

Forest

80%

Crops

0%

Urban

0%

Protected

6%

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