Ontologia

HydroBASINS lev08 watershed · #3080441010

Bassin de Туолба

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 : Aldanskiy rayon, Olekminskiy rayon

Pfafstetter: 34256090

Sub-basin area

2 290,8km²

Upstream area

2 290,9km²

Discharge

12,2m³/s

Mean elev.

495m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Туолба78 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Olekminskij

    IUCN Ia

    State Natural Zapovednik

    1224.71 km² overlap

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

Species present

70 distinct species · 1 983 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 983 obs · 8 cellules
Obs. / cellule
≥ 1 966
1 966–1 965
2–1 965
2–1
< 2

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

Ecological tissue

Sample of 41 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 Туолба : 37 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 5 types (connectance 5.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
43
Connectance
0.052
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°

-7,1°C

Annual rain

402mm

Moisture idx (CMI)

-0,27

Runoff

172mm/an

PET

552mm

AET

348mm

Mean slope

3,2°

Water table

93cm

Forest

94%

Crops

0%

Urban

0%

Protected

53%

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