Ontologia

HydroBASINS lev08 watershed · #2080577620

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 2 administrative regions : Nikopol, Pleven

2% lakePfafstetter: 22735082

Sub-basin area

109,7km²

Upstream area

109,7km²

Discharge

0,33m³/s

Mean elev.

160m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Осъм157 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Nikopolsko plato

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.48 km² overlap

  • Palaza

    IUCN VI

    Protected Site

    0.01 km² overlap

  • Nikopolsko plato

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.00 km² overlap

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

Species present

135 distinct species · 606 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

606 obs · 2 cellules
Obs. / cellule
≥ 437
437–436
437–436
437–436
< 437

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

Ecological tissue

Sample of 27 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 : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 3 types (connectance 15.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
58
Connectance
0.153
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°

11,0°C

Annual rain

586mm

Moisture idx (CMI)

-0,41

Runoff

93mm/an

PET

994mm

AET

500mm

Mean slope

2,7°

Water table

334cm

Forest

0%

Crops

67%

Urban

0%

Protected

0%

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