HydroBASINS lev08 watershed · #2080361960

Bassin de Nurzec

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 7 administrative regions across 2 countries : Białystok, Bielsk, Hajnówka, Kamyanyets, Ostrów Mazowiecka +2

Pfafstetter: 24249304

Sub-basin area

2 041,1km²

Upstream area

2 041,1km²

Discharge

9,07m³/s

Mean elev.

150m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Bug1009 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

Bielsk
Podlaskie · Poland
754.7 km²
36.8% of basin
Siemiatycze
Podlaskie · Poland
620.5 km²
30.3% of basin
Wysokie Mazowieckie
Podlaskie · Poland
517.1 km²
25.2% of basin
Hajnówka
Podlaskie · Poland
142.4 km²
6.9% of basin
Ostrów Mazowiecka
Mazowieckie · Poland
9.1 km²
0.4% of basin
Białystok
Podlaskie · Poland
2.9 km²
0.1% of basin
Kamyanyets
Brest · Belarus
2.5 km²
0.1% of basin

10 intersecting protected areas

Ostoja w Dolinie Górnego Nurca
IUCN Not Reported
Site of Community Importance (Habitats Directive)
55.21 km² overlap
Dolina Górnego Nurca
IUCN Not Reported
Special Protection Area (Birds Directive)
39.93 km² overlap
Dolina Bugu i Nurca
IUCN Not Assigned
Protected Landscape Area
17.12 km² overlap
Dolina Dolnego Bugu
IUCN Not Reported
Special Protection Area (Birds Directive)
15.74 km² overlap
Jelonka
IUCN Not Reported
Site of Community Importance (Habitats Directive)
5.23 km² overlap
Obszar Chronionego Krajobrazu Doliny Bugu i Nurca
IUCN Not Assigned
Protected Landscape Area
4.65 km² overlap
Puszcza Białowieska
IUCN Not Assigned
Protected Landscape Area
1.82 km² overlap
Ostoja Nadbużańska
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.36 km² overlap
Koryciny
IUCN IV
Nature Reserve
0.87 km² overlap

1 more protected areassorted by overlap area

Jelonka
IUCN IV
Nature Reserve
0.12 km² overlap

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

Species present

1 587 distinct species · 18 053 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Nurzec : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 5 types (connectance 12.1%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.121

Patrimoniales

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°

7,0°C

Annual rain

559mm

Moisture idx (CMI)

-0,22

Runoff

140mm/an

PET

719mm

AET

474mm

Mean slope

0,8°

Water table

80cm

Forest

11%

Crops

52%

Urban

Protected

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