Ontologia

HydroBASINS lev08 watershed · #2080239880

Bassin de Lövstaån

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 6 administrative regions : Håbo, Knivsta, Sigtuna, Upplands-Bro, Upplands-Väsby +1

94% lakePfafstetter: 24472023

Sub-basin area

419,7km²

Upstream area

3 649,9km²

Discharge

27,64m³/s

Mean elev.

33m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #2080242160107 km²

▲ Receives from 2 basins

6 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

10 905 distinct species · 479 258 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

479 258 obs · 17 cellules
Obs. / cellule
≥ 70 712
48 221–70 711
35 996–48 220
24 122–35 995
< 24 122

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

Ecological tissue

Sample of 28 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 Lövstaån : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 3 types (connectance 18.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
74
Connectance
0.182
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°

6,2°C

Annual rain

546mm

Moisture idx (CMI)

-0,04

Runoff

217mm/an

PET

568mm

AET

415mm

Mean slope

2,1°

Water table

166cm

Forest

52%

Crops

62%

Urban

8%

Protected

5%

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