Ontologia

HydroBASINS lev08 watershed · #2080027350

Bassin de Gauja

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 : Cesis, Limbaži, Riga

15% lakePfafstetter: 24292010

Sub-basin area

746,9km²

Upstream area

9 160,7km²

Discharge

148,16m³/s

Mean elev.

46m

Administrative coverage

Hydrographic chain

▼ Drains into

Outlet (drains to ocean / endorheic)

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Gaujas Nacionālais parks

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    153.38 km² overlap

  • Gaujas Nacionālais parks

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    153.38 km² overlap

  • Gaujas Nacionālais parks

    IUCN II

    National Park

    153.38 km² overlap

  • Ādaži

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    21.70 km² overlap

  • Ādaži

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    21.70 km² overlap

  • Ādaži

    IUCN V

    Protected Landscape Area

    21.70 km² overlap

  • Garkalnes meži

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    14.60 km² overlap

  • Garkalnes meži

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    14.60 km² overlap

  • Garkalnes meži

    IUCN IV

    Nature Reserve

    14.59 km² overlap

21 more protected areas

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

Species present

3 065 distinct species · 21 817 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 817 obs · 27 cellules
Obs. / cellule
≥ 4 827
2 597–4 826
713–2 596
281–712
< 281

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

Ecological tissue

Sample of 41 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 Gauja : 35 espèces reliées par 57 interactions GloBI sur 4 types (connectance 7.0%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
57
Connectance
0.070
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°

5,9°C

Annual rain

652mm

Moisture idx (CMI)

0,13

Runoff

336mm/an

PET

570mm

AET

451mm

Mean slope

1,4°

Water table

92cm

Forest

57%

Crops

22%

Urban

2%

Protected

27%

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