Ontologia

HydroBASINS lev08 watershed · #2080607670

Bassin de Левченска река

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 1 administrative regions : Svilengrad

Pfafstetter: 21302702

Sub-basin area

139,3km²

Upstream area

139,4km²

Discharge

0,42m³/s

Mean elev.

335m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Sakar

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    139.45 km² overlap

  • Sakar

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    127.51 km² overlap

  • Topolovgrad

    IUCN Not Assigned

    State Game Husbandries

    0.20 km² overlap

  • Dervishka mogila

    IUCN III

    Natural Monument

    0.09 km² overlap

  • Reka Maritsa

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    0.04 km² overlap

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

Species present

293 distinct species · 3 222 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 222 obs · 4 cellules
Obs. / cellule
≥ 2 497
2 497–2 496
288–2 496
288–287
< 288

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

Ecological tissue

Sample of 29 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 Левченска река : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 3 types (connectance 14.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
58
Connectance
0.143
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°

11,8°C

Annual rain

630mm

Moisture idx (CMI)

-0,39

Runoff

94mm/an

PET

1 032mm

AET

533mm

Mean slope

5,5°

Water table

318cm

Forest

14%

Crops

38%

Urban

0%

Protected

0%

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