HydroBASINS lev08 watershed · #2080581220
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 : Letnitsa, Levski, Pavlikeni, Suhindol
Sub-basin area
48,5km²
Upstream area
1 839,1km²
Discharge
10,84m³/s
Mean elev.
111m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Осъм1177 km²
- Bassin de Пелишатска бара147 km²
4 dept-equivalent regions (GADM L2)
- 38.3 km²78.8% of basin
- 8.6 km²17.6% of basin
- 1.7 km²3.5% of basin
- 0.1 km²0.1% of basin
2 intersecting protected areas
Obnova - Karaman dol
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.53 km² overlap
Taraklaka
IUCN VIProtected Site
0.34 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
75 distinct species · 127 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Осъм : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 3 types (connectance 13.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,3°C
Annual rain
579mm
Moisture idx (CMI)
-0,42
Runoff
119mm/an
PET
1 006mm
AET
494mm
Mean slope
1,2°
Water table
155cm
Forest
0%
Crops
54%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)