Ontologia

HydroBASINS lev08 watershed · #2080575600

Bassin de Осъм

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 4 administrative regions across 2 countries : Gulyantsi, Nikopol, Pleven, Turnu Magurele

Pfafstetter: 22735081

Sub-basin area

157,2km²

Upstream area

2 866,2km²

Discharge

15,07m³/s

Mean elev.

122m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Călmățui2682 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

8 intersecting protected areas

  • Nikopolsko plato

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    40.12 km² overlap

  • Nikopolsko plato

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    38.54 km² overlap

  • Persina

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    7.10 km² overlap

  • Persina

    IUCN V

    Nature Park

    6.87 km² overlap

  • Peshtera Nanin kamak

    IUCN III

    Natural Monument

    0.03 km² overlap

  • Belene Islands Complex

    IUCN Ia

    Wetland of International Importance (Ramsar Site)

    0.02 km² overlap

  • Confluența Olt - Dunăre

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.02 km² overlap

  • Corabia - Turnu Măgurele

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.02 km² overlap

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

Species present

244 distinct species · 844 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

844 obs · 4 cellules
Obs. / cellule
≥ 571
571–570
183–570
183–182
< 183

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

Ecological tissue

Sample of 42 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 Осъм : 33 espèces reliées par 108 interactions GloBI sur 5 types (connectance 12.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
108
Connectance
0.125
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°

11,2°C

Annual rain

582mm

Moisture idx (CMI)

-0,42

Runoff

107mm/an

PET

1 001mm

AET

496mm

Mean slope

4,0°

Water table

476cm

Forest

0%

Crops

72%

Urban

0%

Protected

4%

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