Ontologia

HydroBASINS lev08 watershed · #2080284350

Bassin de Aiviekste

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 : Aizkraukle, Gulbene, Jekabpils, Madona

6% lakePfafstetter: 24280210

Sub-basin area

2 384,4km²

Upstream area

9 135,4km²

Discharge

82,54m³/s

Mean elev.

129m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Daugava263 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Vestiena

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    134.03 km² overlap

  • Vestiena

    IUCN V

    Protected Landscape Area

    134.03 km² overlap

  • Vestiena

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    134.03 km² overlap

  • Kuja

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    107.91 km² overlap

  • Kuja

    IUCN II

    Nature Park

    107.91 km² overlap

  • Kuja

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    107.91 km² overlap

  • Teici and Pelecare bogs

    IUCN Ia

    Wetland of International Importance (Ramsar Site)

    55.68 km² overlap

  • Teiču dabas rezervāts

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    55.66 km² overlap

  • Teiču dabas rezervāts

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    55.66 km² overlap

21 more protected areas

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

Species present

2 493 distinct species · 22 534 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 534 obs · 79 cellules
Obs. / cellule
≥ 15 352
329–15 351
77–328
32–76
< 32

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 Aiviekste : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 4 types (connectance 16.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
81
Connectance
0.163
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°

5,2°C

Annual rain

672mm

Moisture idx (CMI)

0,09

Runoff

299mm/an

PET

608mm

AET

474mm

Mean slope

1,4°

Water table

94cm

Forest

40%

Crops

20%

Urban

0%

Protected

16%

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