Ontologia

HydroBASINS lev08 watershed · #2080229610

Bassin de Dalälven

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 : Gävle, Heby, Sandviken

166% lakePfafstetter: 24460013

Sub-basin area

123,4km²

Upstream area

27 514,4km²

Discharge

344,77m³/s

Mean elev.

58m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Dalälven743 km²

▲ Receives from 2 basins

3 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

4 850 distinct species · 85 373 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

85 373 obs · 4 cellules
Obs. / cellule
≥ 62 872
62 872–62 871
13 004–62 871
13 004–13 003
< 13 004

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

Ecological tissue

Sample of 34 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 Dalälven : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 4 types (connectance 13.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
78
Connectance
0.131
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°

5,1°C

Annual rain

601mm

Moisture idx (CMI)

0,05

Runoff

318mm/an

PET

574mm

AET

428mm

Mean slope

2,2°

Water table

91cm

Forest

83%

Crops

0%

Urban

0%

Protected

33%

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