HydroBASINS lev08 watershed · #2080353370
Bassin de Narewka
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 3 administrative regions across 2 countries : Hajnówka, Pruzhany, Svislach
Sub-basin area
643,3km²
Upstream area
643,3km²
Discharge
3,63m³/s
Mean elev.
165m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 360.8 km²55.9% of basin
- 282.2 km²43.7% of basin
- 2.9 km²0.4% of basin
21 intersecting protected areas
Białowieża Forest
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
399.19 km² overlap
Puszcza Białowieska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
298.02 km² overlap
Puszcza Białowieska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
298.02 km² overlap
Puszcza Białowieska
IUCN Not AssignedProtected Landscape Area
269.13 km² overlap
Belowezskaya Pushcha
IUCN IINational Park
143.01 km² overlap
Białowieski Park Narodowy
IUCN IINational Park
93.07 km² overlap
Nature Reserve
29.59 km² overlap
Nature Reserve
9.20 km² overlap
Ostoja w Dolinie Górnej Narwi
IUCN Not ReportedSite of Community Importance (Habitats Directive)
5.54 km² overlap
12 more protected areassorted by overlap area
Dolina Narwi
IUCN Not AssignedProtected Landscape Area
2.19 km² overlap
Dolina Górnej Narwi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.34 km² overlap
Dębowy Grąd
IUCN IVNature Reserve
1.00 km² overlap
Wysokie Bagno
IUCN IVNature Reserve
0.79 km² overlap
Nature Reserve
0.47 km² overlap
Szczekotowo
IUCN IVNature Reserve
0.37 km² overlap
Dolina Waliczówki
IUCN IVNature Reserve
0.34 km² overlap
Gnilec
IUCN IVNature Reserve
0.33 km² overlap
Dikoe Fen Mire
IUCN IaWetland of International Importance (Ramsar Site)
0.19 km² overlap
Dikoe
IUCN IVNature Sanctuary or Partial Reserve
0.17 km² overlap
Podolany
IUCN IVNature Reserve
0.15 km² overlap
Pogorzelce
IUCN IVNature Reserve
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 763 distinct species · 307 591 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Narewka : 26 espèces reliées par 66 interactions GloBI sur 5 types (connectance 12.5%, filtre Serrano α=0.2). 7 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°
6,9°C
Annual rain
584mm
Moisture idx (CMI)
-0,19
Runoff
170mm/an
PET
724mm
AET
494mm
Mean slope
0,9°
Water table
127cm
Forest
65%
Crops
12%
Urban
0%
Protected
64%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)