Ontologia

HydroBASINS lev08 watershed · #2080243200

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, Volosovskiy rayon

3% lakePfafstetter: 24298099

Sub-basin area

539,4km²

Upstream area

539,4km²

Discharge

3,61m³/s

Mean elev.

121m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Оредеж146 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

1 489 distinct species · 8 828 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 828 obs · 18 cellules
Obs. / cellule
≥ 2 560
1 421–2 559
726–1 420
171–725
< 171

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

Ecological tissue

Sample of 30 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 : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 5 types (connectance 20.4%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
95
Connectance
0.204
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°

4,3°C

Annual rain

672mm

Moisture idx (CMI)

0,16

Runoff

208mm/an

PET

564mm

AET

443mm

Mean slope

1,0°

Water table

58cm

Forest

61%

Crops

21%

Urban

4%

Protected

1%

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