Ontologia

HydroBASINS lev08 watershed · #2080273470

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 4 administrative regions : Cesis, Gulbene, Madona, Valka

6% lakePfafstetter: 24292090

Sub-basin area

825km²

Upstream area

825km²

Discharge

9,25m³/s

Mean elev.

184m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Gauja1116 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

14 intersecting protected areas

  • Vecpiebalga

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    2.80 km² overlap

  • Vecpiebalga

    IUCN V

    Protected Landscape Area

    2.80 km² overlap

  • Vecpiebalga

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.80 km² overlap

  • Augštupītes meži

    IUCN IV

    Nature Reserve

    0.91 km² overlap

  • Priedes

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.42 km² overlap

  • Priedes

    IUCN IV

    Micro-reserve

    0.42 km² overlap

  • Bērzu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.31 km² overlap

  • Bērzu purvs

    IUCN IV

    Micro-reserve

    0.31 km² overlap

  • Nēķena parks

    IUCN III

    Nature Monument

    0.16 km² overlap

5 more protected areas

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

Species present

709 distinct species · 4 389 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 389 obs · 29 cellules
Obs. / cellule
≥ 1 854
406–1 853
69–405
38–68
< 38

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

Ecological tissue

Sample of 37 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 : 28 espèces reliées par 81 interactions GloBI sur 5 types (connectance 12.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
81
Connectance
0.122
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°

4,8°C

Annual rain

694mm

Moisture idx (CMI)

0,15

Runoff

327mm/an

PET

587mm

AET

466mm

Mean slope

1,5°

Water table

116cm

Forest

40%

Crops

10%

Urban

0%

Protected

0%

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