Ontologia

HydroBASINS lev08 watershed · #2080345390

Bassin de Ольса

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 4 administrative regions : Bialynichy, Byarezino, Kirawsk, Klichaw

Pfafstetter: 22580020

Sub-basin area

1 648,5km²

Upstream area

1 648,5km²

Discharge

9,02m³/s

Mean elev.

162m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Бярэзіна451 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

179 distinct species · 607 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

607 obs · 31 cellules
Obs. / cellule
≥ 234
45–233
7–44
2–6
< 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 32 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 Ольса : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 3 types (connectance 10.1%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
50
Connectance
0.101
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°

6,0°C

Annual rain

618mm

Moisture idx (CMI)

-0,12

Runoff

173mm/an

PET

698mm

AET

514mm

Mean slope

0,9°

Water table

74cm

Forest

59%

Crops

20%

Urban

0%

Protected

0%

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