Ontologia

HydroBASINS lev08 watershed · #2080271670

Bassin de Alūksne

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 1 administrative regions : Aluksne

118% lakePfafstetter: 24280228

Sub-basin area

125,9km²

Upstream area

125,9km²

Discharge

1,1m³/s

Mean elev.

176m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Pededze244 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Bejas mežs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.32 km² overlap

  • Bejas mežs

    IUCN IV

    Nature Reserve

    0.32 km² overlap

  • Visikums

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.05 km² overlap

  • Visikums

    IUCN IV

    Micro-reserve

    0.05 km² overlap

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

Species present

260 distinct species · 831 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

831 obs · 4 cellules
Obs. / cellule
≥ 483
483–482
332–482
332–331
< 332

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

Ecological tissue

Sample of 43 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 Alūksne : 30 espèces reliées par 73 interactions GloBI sur 5 types (connectance 8.1%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
73
Connectance
0.081
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°

4,5°C

Annual rain

648mm

Moisture idx (CMI)

0,09

Runoff

272mm/an

PET

591mm

AET

462mm

Mean slope

1,1°

Water table

75cm

Forest

20%

Crops

26%

Urban

4%

Protected

0%

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