Ontologia

HydroBASINS lev08 watershed · #2080585990

Bassin de Нишава

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 10 administrative regions across 2 countries : Berkovitsa, Breznik, Dimitrovgrad, Dragoman, Godech +5

Pfafstetter: 22738428

Sub-basin area

741,4km²

Upstream area

741,4km²

Discharge

4,47m³/s

Mean elev.

794m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Нишава164 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

10 dept-equivalent regions (GADM L2)

2 more

12 intersecting protected areas

  • Zapadna Stara planina i Predbalkan

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    158.58 km² overlap

  • Ponor

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    75.52 km² overlap

  • Dragoman

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    34.51 km² overlap

  • Rayanovtsi

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    20.43 km² overlap

  • Zapaden Balkan

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    17.71 km² overlap

  • STARA PLANINA

    IUCN Not Reported

    Emerald Network

    2.38 km² overlap

  • Dragoman Marsh Karst Complex

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    1.87 km² overlap

  • Zaskogo

    IUCN III

    Natural Monument

    0.89 km² overlap

  • Stara planina

    IUCN V

    Nature Park

    0.67 km² overlap

3 more protected areas

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

Species present

2 547 distinct species · 23 447 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

23 447 obs · 19 cellules
Obs. / cellule
≥ 9 439
5 795–9 438
474–5 794
150–473
< 150

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

Ecological tissue

Sample of 35 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 Нишава : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 3 types (connectance 9.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
60
Connectance
0.095
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°

8,5°C

Annual rain

623mm

Moisture idx (CMI)

-0,29

Runoff

185mm/an

PET

884mm

AET

528mm

Mean slope

9,4°

Water table

498cm

Forest

44%

Crops

13%

Urban

1%

Protected

0%

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