Ontologia

HydroBASINS lev08 watershed · #2080033330

Bassin de Bäveån

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 9 administrative regions : Färgelanda, Kungälv, Lilla Edet, Lysekil, Munkedal +4

Coastal basin 12% lakePfafstetter: 24490001

Sub-basin area

1 838,9km²

Upstream area

1 838,9km²

Discharge

4,8m³/s

Mean elev.

53m

Administrative coverage

9 dept-equivalent regions (GADM L2)

1 more

30 intersecting protected areas

  • 2001786 Stigfjorden

    IUCN V

    Nature Reserve

    46.40 km² overlap

  • Stigfjorden

    IUCN V

    Wetland of International Importance (Ramsar Site)

    41.68 km² overlap

  • 2001950 Gullmarn

    IUCN V

    Nature Conservation Area

    34.56 km² overlap

  • Stigfjorden

    IUCN V

    Natura 2000 SPA

    24.39 km² overlap

  • Stigfjorden

    IUCN V

    Natura 2000 SCI

    24.39 km² overlap

  • Stigfjorden

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    24.39 km² overlap

  • Stigfjorden

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    24.39 km² overlap

  • Svartedalen

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    21.15 km² overlap

  • Svartedalen

    IUCN V

    Natura 2000 SPA

    21.15 km² overlap

21 more protected areas

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

Species present

17 141 distinct species · 1 889 875 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 889 875 obs · 62 cellules
Obs. / cellule
≥ 94 301
64 767–94 300
35 320–64 766
22 722–35 319
< 22 722

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 Bäveån : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 4 types (connectance 16.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
82
Connectance
0.165
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°

7,0°C

Annual rain

741mm

Moisture idx (CMI)

0,27

Runoff

538mm/an

PET

543mm

AET

442mm

Mean slope

3,6°

Water table

186cm

Forest

74%

Crops

20%

Urban

2%

Protected

13%

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