Ontologia

HydroBASINS lev08 watershed · #2080289560

Bassin de Межа

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 : Andreapol'skiy rayon, Nelidovskiy rayon

Pfafstetter: 24280868

Sub-basin area

253,7km²

Upstream area

253,7km²

Discharge

2,04m³/s

Mean elev.

245m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Белейка166 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 648 distinct species · 12 340 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 340 obs · 10 cellules
Obs. / cellule
≥ 6 616
6 616–6 615
2 597–6 615
34–2 596
< 34

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

Ecological tissue

Sample of 38 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 Межа : 24 espèces reliées par 111 interactions GloBI sur 6 types (connectance 15.0%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
111
Connectance
0.150
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°

3,9°C

Annual rain

651mm

Moisture idx (CMI)

0,03

Runoff

254mm/an

PET

629mm

AET

488mm

Mean slope

1,1°

Water table

88cm

Forest

97%

Crops

2%

Urban

0%

Protected

36%

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