HydroBASINS lev08 watershed · #2080362240
Bassin de Bug
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 : Siedlce, Siemiatycze, Sokołów, Wysokie Mazowieckie
Sub-basin area
685,4km²
Upstream area
30 896,6km²
Discharge
123,35m³/s
Mean elev.
140m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Bug1007 km²
- Bassin de Toczna329 km²
4 dept-equivalent regions (GADM L2)
- 307.5 km²44.7% of basin
- 211.7 km²30.8% of basin
- 164.3 km²23.9% of basin
- 4.7 km²0.7% of basin
12 intersecting protected areas
Dolina Dolnego Bugu
IUCN Not ReportedSpecial Protection Area (Birds Directive)
159.80 km² overlap
Nadbużański Obszar Chronionego Krajobrazu
IUCN Not AssignedProtected Landscape Area
158.47 km² overlap
Landscape Park
117.40 km² overlap
Ostoja Nadbużańska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
76.91 km² overlap
Dolina Bugu
IUCN Not AssignedProtected Landscape Area
63.52 km² overlap
Dolina Bugu i Nurca
IUCN Not AssignedProtected Landscape Area
11.82 km² overlap
Wydma Mołożewska
IUCN IVNature Reserve
1.14 km² overlap
Kaliniak
IUCN IVNature Reserve
0.53 km² overlap
Śnieżyczki
IUCN IVNature Reserve
0.25 km² overlap
3 more protected areassorted by overlap area
Przekop
IUCN IVNature Reserve
0.21 km² overlap
Dębniak
IUCN IVNature Reserve
0.21 km² overlap
Skarpa Mołożewska
IUCN IVNature Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 323 distinct species · 19 372 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Bug : 15 espèces reliées par 54 interactions GloBI sur 5 types (connectance 19.6%, filtre Serrano α=0.2). 9 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°
7,0°C
Annual rain
545mm
Moisture idx (CMI)
-0,25
Runoff
129mm/an
PET
724mm
AET
463mm
Mean slope
1,0°
Water table
91cm
Forest
3%
Crops
66%
Urban
0%
Protected
50%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)