Ontologia

HydroBASINS lev08 watershed · #2080251000

Bassin de Оредеж

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 : Gatchinskiy rayon, Luzhskiy rayon

19% lakePfafstetter: 24298091

Sub-basin area

362,2km²

Upstream area

3 321,6km²

Discharge

21,37m³/s

Mean elev.

67m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ящера1517 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

596 distinct species · 1 751 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 751 obs · 12 cellules
Obs. / cellule
≥ 839
262–838
157–261
116–156
< 116

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

Ecological tissue

Sample of 22 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 Оредеж : 20 espèces reliées par 35 interactions GloBI sur 3 types (connectance 15.2%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
35
Connectance
0.151
Patrimoniales
0
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°

4,4°C

Annual rain

634mm

Moisture idx (CMI)

0,08

Runoff

215mm/an

PET

584mm

AET

448mm

Mean slope

1,1°

Water table

78cm

Forest

71%

Crops

5%

Urban

0%

Protected

29%

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