Ontologia

HydroBASINS lev08 watershed · #2080280190

Bassin de Tarasīne

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 : Balvi, Madona, Rezekne

185% lakePfafstetter: 24280250

Sub-basin area

256,2km²

Upstream area

2 761,7km²

Discharge

23,67m³/s

Mean elev.

95m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Aiviekste67 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Lubana wetland complex

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    141.45 km² overlap

  • Lubāna mitrājs

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    134.51 km² overlap

  • Lubāna mitrājs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    134.51 km² overlap

  • Lubāna mitrājs

    IUCN IV

    Nature Reserve

    134.49 km² overlap

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

Species present

384 distinct species · 2 083 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 083 obs · 9 cellules
Obs. / cellule
≥ 744
744–743
285–743
86–284
< 86

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

Ecological tissue

Sample of 34 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 Tarasīne : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 48 interactions GloBI sur 3 types (connectance 8.6%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
48
Connectance
0.086
Patrimoniales
2
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°

5,3°C

Annual rain

645mm

Moisture idx (CMI)

0,04

Runoff

274mm/an

PET

617mm

AET

474mm

Mean slope

0,5°

Water table

25cm

Forest

29%

Crops

24%

Urban

0%

Protected

52%

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