Ontologia

HydroBASINS lev08 watershed · #3080455840

Bassin de Амга

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: 34242997

Sub-basin area

1 161,8km²

Upstream area

2 007km²

Discharge

10,33m³/s

Mean elev.

602m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Амга447 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Olekminskij

    IUCN Ia

    State Natural Zapovednik

    1147.08 km² overlap

  • Apparah

    IUCN VI

    Resource Reserve

    23.06 km² overlap

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

Species present

74 distinct species · 1 979 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 979 obs · 9 cellules
Obs. / cellule
≥ 1 960
1 960–1 959
4–1 959
2–3
< 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 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 Амга : 35 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 5 types (connectance 5.6%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
44
Connectance
0.056
Patrimoniales
3
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°

-7,3°C

Annual rain

430mm

Moisture idx (CMI)

-0,21

Runoff

184mm/an

PET

543mm

AET

367mm

Mean slope

4,4°

Water table

112cm

Forest

96%

Crops

0%

Urban

0%

Protected

98%

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