HydroBASINS lev08 watershed · #2080336680
Bassin de Święcek
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 2 administrative regions : Ełk, Pisz
Sub-basin area
398,7km²
Upstream area
398,8km²
Discharge
2,22m³/s
Mean elev.
140m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Pisz350.3 km²87.5% of basin
- 50.1 km²12.5% of basin
6 intersecting protected areas
Puszczy i Jezior Piskich
IUCN Not AssignedProtected Landscape Area
146.58 km² overlap
Ostoja Poligon Orzysz
IUCN Not ReportedSpecial Protection Area (Birds Directive)
98.72 km² overlap
Wzgórz Dybowskich
IUCN Not AssignedProtected Landscape Area
71.15 km² overlap
Murawy na Poligonie Orzysz
IUCN Not ReportedSite of Community Importance (Habitats Directive)
12.31 km² overlap
Puszcza Piska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.93 km² overlap
Otuliny Mazurskiego Parku Krajobrazowego - Wschód
IUCN Not AssignedProtected Landscape Area
0.75 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
645 distinct species · 3 247 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Święcek : 38 espèces reliées par 46 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
6,7°C
Annual rain
613mm
Moisture idx (CMI)
-0,12
Runoff
177mm/an
PET
696mm
AET
506mm
Mean slope
1,2°
Water table
171cm
Forest
32%
Crops
32%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)