Ontologia

HydroBASINS lev08 watershed · #2080288840

Bassin de Daugava

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 5 administrative regions across 2 countries : Daugavpils, Jekabpils, Preili, Rokiškio, Zarasų

7% lakePfafstetter: 24280330

Sub-basin area

1 635,7km²

Upstream area

66 538km²

Discharge

469,72m³/s

Mean elev.

116m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Daugava1565 km²

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Dvietes paliene

    IUCN II

    Nature Park

    49.91 km² overlap

  • Dvietes paliene

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    49.91 km² overlap

  • Dvietes paliene

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    49.91 km² overlap

  • Augšzeme

    IUCN V

    Protected Landscape Area

    45.21 km² overlap

  • Augšzeme

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    45.20 km² overlap

  • Augšzeme

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    45.20 km² overlap

  • Nīcgales meži

    IUCN V

    Protected Landscape Area

    9.02 km² overlap

  • Nīcgales meži

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    9.00 km² overlap

  • Tīreļu purvs

    IUCN IV

    Nature Reserve

    8.47 km² overlap

21 more protected areas

  • Tīreļu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    8.45 km² overlap

  • Viesītes meži

    IUCN IV

    Nature Reserve

    6.01 km² overlap

  • Kinkausku meži

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.31 km² overlap

  • Kinkausku meži

    IUCN IV

    Nature Reserve

    2.30 km² overlap

  • Raudas meži

    IUCN IV

    Nature Reserve

    2.11 km² overlap

  • Raudas meži

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.11 km² overlap

  • Sasaļu mežs

    IUCN IV

    Nature Reserve

    2.00 km² overlap

  • Sasaļu mežs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.99 km² overlap

  • Eglone

    IUCN IV

    Nature Reserve

    1.59 km² overlap

  • Eglone

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.59 km² overlap

  • Dvietes dumbrāji

    IUCN IV

    Nature Reserve

    1.22 km² overlap

  • Dvietes dumbrāji

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.21 km² overlap

  • Ļubasts

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.09 km² overlap

  • Ļubasts

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.09 km² overlap

  • Ļubasts

    IUCN IV

    Nature Reserve

    1.09 km² overlap

  • Pašulienes mežs

    IUCN IV

    Nature Reserve

    1.08 km² overlap

  • Pašulienes mežs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.06 km² overlap

  • Svente

    IUCN II

    Nature Park

    0.82 km² overlap

  • Līdumu mežs

    IUCN IV

    Nature Reserve

    0.67 km² overlap

  • Pilskalnes Siguldiņa

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.65 km² overlap

  • Pilskalnes Siguldiņa

    IUCN IV

    Nature Reserve

    0.65 km² overlap

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

Species present

2 058 distinct species · 16 844 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

16 844 obs · 58 cellules
Obs. / cellule
≥ 9 106
411–9 105
123–410
56–122
< 56

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

Ecological tissue

Sample of 27 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 Daugava : 22 espèces reliées par 54 interactions GloBI sur 3 types (connectance 15.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
54
Connectance
0.154
Patrimoniales
0
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°

5,6°C

Annual rain

657mm

Moisture idx (CMI)

0,03

Runoff

263mm/an

PET

637mm

AET

489mm

Mean slope

1,2°

Water table

97cm

Forest

34%

Crops

27%

Urban

2%

Protected

8%

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