Ontologia

HydroBASINS lev08 watershed · #2080278850

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 2 administrative regions : Balvi, Madona

Pfafstetter: 24280230

Sub-basin area

66,5km²

Upstream area

3 956,8km²

Discharge

33,13m³/s

Mean elev.

95m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Aiviekste2384 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Lubāna mitrājs

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    65.94 km² overlap

  • Lubāna mitrājs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    65.94 km² overlap

  • Lubāna mitrājs

    IUCN IV

    Nature Reserve

    65.93 km² overlap

  • Lubana wetland complex

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    64.22 km² overlap

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

Species present

103 distinct species · 221 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

221 obs · 3 cellules
Obs. / cellule
≥ 150
150–149
150–149
49–149
< 49

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

Ecological tissue

Sample of 30 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 : 25 espèces reliées par 42 interactions GloBI sur 3 types (connectance 9.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
42
Connectance
0.097
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°

5,2°C

Annual rain

643mm

Moisture idx (CMI)

0,04

Runoff

276mm/an

PET

616mm

AET

473mm

Mean slope

0,4°

Water table

25cm

Forest

52%

Crops

18%

Urban

0%

Protected

99%

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