Ontologia

HydroBASINS lev08 watershed · #2080296130

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 3 administrative regions : Bel'skiy rayon, Nelidovskiy rayon, Zharkovskiy rayon

3% lakePfafstetter: 24280861

Sub-basin area

546,7km²

Upstream area

3 207,4km²

Discharge

24,97m³/s

Mean elev.

186m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Межа64 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

105 distinct species · 164 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

164 obs · 8 cellules
Obs. / cellule
≥ 66
66–65
41–65
5–40
< 5

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

Ecological tissue

Sample of 24 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 : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 4 types (connectance 9.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
28
Connectance
0.093
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°

4,4°C

Annual rain

638mm

Moisture idx (CMI)

0,00

Runoff

256mm/an

PET

639mm

AET

489mm

Mean slope

0,6°

Water table

41cm

Forest

83%

Crops

6%

Urban

0%

Protected

43%

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