Ontologia

HydroBASINS lev08 watershed · #2080033290

Bassin de Lillån

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 12 administrative regions : Ale, Alingsås, Bollebygd, Borås, Göteborg +7

92% lakePfafstetter: 24479080

Sub-basin area

1 641,5km²

Upstream area

1 641,5km²

Discharge

25,1m³/s

Mean elev.

123m

Administrative coverage

12 dept-equivalent regions (GADM L2)

4 more

30 intersecting protected areas

21 more protected areas

  • 2014832 Tränningen

    IUCN Ia

    Nature Reserve

    1.96 km² overlap

  • Maderna-Haketjärn

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.86 km² overlap

  • Maderna-Haketjärn

    IUCN Not Assigned

    Natura 2000 SCI

    1.86 km² overlap

  • 2001124 Nääs ekhagar

    IUCN Not Assigned

    Nature Reserve

    1.63 km² overlap

  • 2021585 Risvedens vildmark

    IUCN Ib

    Nature Reserve

    1.28 km² overlap

  • Lärjeån

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.27 km² overlap

  • Lärjeån

    IUCN Not Assigned

    Natura 2000 SCI

    1.27 km² overlap

  • Östad

    IUCN Not Assigned

    Natura 2000 SCI

    1.06 km² overlap

  • Östad

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.06 km² overlap

  • Nääs ekhagar

    IUCN Not Assigned

    Natura 2000 SCI

    1.00 km² overlap

  • Nääs ekhagar

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.00 km² overlap

  • Bokedalen

    IUCN IV

    Natura 2000 SCI

    1.00 km² overlap

  • Bokedalen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.00 km² overlap

  • 2000801 Änggårdsbergen

    IUCN Ia

    Nature Reserve

    0.97 km² overlap

  • Öijared

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.92 km² overlap

  • Öijared

    IUCN Not Assigned

    Natura 2000 SCI

    0.92 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.77 km² overlap

  • 2000520 Säveåns dalgång

    IUCN III

    Nature Reserve

    0.66 km² overlap

  • Säveån

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.66 km² overlap

  • Säveån

    IUCN III

    Natura 2000 SCI

    0.66 km² overlap

  • 2000552 Ljungås

    IUCN IV

    Nature Reserve

    0.52 km² overlap

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

Species present

16 212 distinct species · 2 455 579 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 455 579 obs · 60 cellules
Obs. / cellule
≥ 465 800
124 616–465 799
28 697–124 615
14 601–28 696
< 14 601

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

Ecological tissue

Sample of 32 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 Lillån : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 4 types (connectance 18.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
95
Connectance
0.180
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°

6,6°C

Annual rain

859mm

Moisture idx (CMI)

0,34

Runoff

480mm/an

PET

569mm

AET

471mm

Mean slope

2,8°

Water table

240cm

Forest

70%

Crops

15%

Urban

11%

Protected

2%

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