HydroBASINS lev08 watershed · #2080307120
Bassin de Рычанка
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 across 3 countries : Braslaw, Daugavpils, Ignalinos, Zarasų
Sub-basin area
1 056,4km²
Upstream area
1 056,5km²
Discharge
7,55m³/s
Mean elev.
148m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 611.0 km²57.6% of basin
- 199.4 km²18.8% of basin
- 170.5 km²16.1% of basin
- 80.4 km²7.6% of basin
26 intersecting protected areas
Braslavskie Ozera
IUCN IINational Park
97.80 km² overlap
Silene
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
38.25 km² overlap
Silene
IUCN Not ReportedSpecial Protection Area (Birds Directive)
38.25 km² overlap
Silene
IUCN IINature Park
36.93 km² overlap
Drūkšių ežeras
IUCN Not ReportedSpecial Protection Area (Birds Directive)
36.53 km² overlap
Drūkšių ežeras
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
36.11 km² overlap
Richi
IUCN IVNature Sanctuary or Partial Reserve
23.99 km² overlap
Pušnies, Rūžo ir Apvardų šlapžemių kompleksas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.56 km² overlap
Pušnies pelkė
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.73 km² overlap
17 more protected areassorted by overlap area
Nature Reserve
7.73 km² overlap
Drūkšių ežero apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
5.36 km² overlap
Smalvelės upė ir šlapžemės
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.66 km² overlap
Smalvos šlapžemių kompleksas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.64 km² overlap
Nature Reserve
4.64 km² overlap
Augšdaugava
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.20 km² overlap
Augšdaugava
IUCN VProtected Landscape Area
2.20 km² overlap
Augšdaugava
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.20 km² overlap
Gervelės pelkė
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.93 km² overlap
Ilgas
IUCN IVNature Reserve
1.57 km² overlap
Glušonkas purvs
IUCN IVNature Reserve
1.44 km² overlap
Daržėnų apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.15 km² overlap
Kukutėnų apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.74 km² overlap
Nature Reserve
0.59 km² overlap
Rūžo ežeras
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.59 km² overlap
Vileity
IUCN IVWetland of International Importance (Ramsar Site)
0.59 km² overlap
Nature Reserve
0.44 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 805 distinct species · 4 822 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Рычанка : 33 espèces reliées par 79 interactions GloBI sur 4 types (connectance 8.7%, filtre Serrano α=0.2). 10 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°
5,6°C
Annual rain
649mm
Moisture idx (CMI)
0,01
Runoff
227mm/an
PET
643mm
AET
493mm
Mean slope
0,9°
Water table
61cm
Forest
40%
Crops
31%
Urban
1%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)