Ontologia

HydroBASINS lev08 watershed · #2080257490

Bassin de Emajõgi

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 5 administrative regions : Kolga-Jaani, Laeva, Puhja, Puurmani, Rannu

Pfafstetter: 24296470

Sub-basin area

136km²

Upstream area

4 548,1km²

Discharge

40,21m³/s

Mean elev.

42m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

5 dept-equivalent regions (GADM L2)

  • Puhja
    Tartu · Estonia
    63.5 km²
    46.5% of basin
  • Laeva
    Tartu · Estonia
    46.6 km²
    34.1% of basin
  • Rannu
    Tartu · Estonia
    15.7 km²
    11.5% of basin
  • Puurmani
    Jõgeva · Estonia
    10.4 km²
    7.6% of basin
  • Kolga-Jaani
    Viljandi · Estonia
    0.4 km²
    0.3% of basin

26 intersecting protected areas

17 more protected areas

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

Species present

2 782 distinct species · 24 289 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 289 obs · 4 cellules
Obs. / cellule
≥ 18 648
18 648–18 647
2 968–18 647
2 968–2 967
< 2 968

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

Ecological tissue

Sample of 40 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 Emajõgi : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 86 interactions GloBI sur 6 types (connectance 11.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
86
Connectance
0.110
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

624mm

Moisture idx (CMI)

0,09

Runoff

257mm/an

PET

570mm

AET

439mm

Mean slope

0,5°

Water table

30cm

Forest

46%

Crops

18%

Urban

0%

Protected

71%

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