HydroBASINS lev08 watershed · #2080339420

Bassin de Jegrznia

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 6 administrative regions : Augustów, Ełk, Grajewo, Mońki, Olecko +1

34% lakePfafstetter: 24248084

Sub-basin area

1 180,1km²

Upstream area

1 180,2km²

Discharge

6,42m³/s

Mean elev.

139m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Biebrza109 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

Ełk
Warmińsko-Mazurskie · Poland
404.0 km²
34.1% of basin
Olecko
Warmińsko-Mazurskie · Poland
331.0 km²
27.9% of basin
Grajewo
Podlaskie · Poland
240.7 km²
20.3% of basin
Mońki
Podlaskie · Poland
114.0 km²
9.6% of basin
Augustów
Podlaskie · Poland
87.3 km²
7.4% of basin
Suwałki
Podlaskie · Poland
8.1 km²
0.7% of basin

13 intersecting protected areas

Ostoja Biebrzańska
IUCN Not Reported
Special Protection Area (Birds Directive)
239.51 km² overlap
Dolina Biebrzy
IUCN Not Reported
Site of Community Importance (Habitats Directive)
163.16 km² overlap
Pojezierze Rajgrodzkie
IUCN Not Assigned
Protected Landscape Area
143.38 km² overlap
Biebrzański Park Narodowy
IUCN Not Assigned
National Park
130.50 km² overlap
Biebrzanski National Park
IUCN II
Wetland of International Importance (Ramsar Site)
130.50 km² overlap
Doliny Legi
IUCN Not Assigned
Protected Landscape Area
84.27 km² overlap
Jezior Rajgrodzkich
IUCN Not Assigned
Protected Landscape Area
74.20 km² overlap
Obszar Chronionego Krajobrazu Pojezierza Ełckiego
IUCN Not Assigned
Protected Landscape Area
61.54 km² overlap
Obszar Chronionego Krajobrazu Pojezierza Iławskiego - część A i B
IUCN Not Assigned
Protected Landscape Area
61.54 km² overlap

4 more protected areassorted by overlap area

Jezior Oleckich
IUCN Not Assigned
Protected Landscape Area
48.94 km² overlap
Dolina Rospudy
IUCN Not Assigned
Protected Landscape Area
3.12 km² overlap
Torfowisko Zocie
IUCN Not Reported
Site of Community Importance (Habitats Directive)
0.17 km² overlap
Czapliniec Bełda
IUCN IV
Nature Reserve
0.11 km² overlap

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

Species present

1 919 distinct species · 29 949 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 32 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 Jegrznia : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 4 types (connectance 9.3%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.093

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°

6,5°C

Annual rain

600mm

Moisture idx (CMI)

-0,13

Runoff

183mm/an

PET

686mm

AET

499mm

Mean slope

0,8°

Water table

49cm

Forest

18%

Crops

44%

Urban

Protected

11%

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