HydroBASINS lev08 watershed · #2080278530
Bassin de Bolupe
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 : Aluksne, Balvi, Gulbene, Madona
Sub-basin area
1 105,5km²
Upstream area
1 105,5km²
Discharge
9,29m³/s
Mean elev.
119m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 871.5 km²78.4% of basin
- 237.6 km²21.4% of basin
- 1.9 km²0.2% of basin
- 0.0 km²0.0% of basin
28 intersecting protected areas
Lubāna mitrājs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.48 km² overlap
Lubāna mitrājs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.48 km² overlap
Lubāna mitrājs
IUCN IVNature Reserve
31.46 km² overlap
Lubana wetland complex
IUCN Not ReportedWetland of International Importance (Ramsar Site)
26.20 km² overlap
Stompaku purvi
IUCN IVNature Reserve
17.95 km² overlap
Stompaku purvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.94 km² overlap
Stompaku purvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.94 km² overlap
Orlovas (Ērgļu) purvs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.83 km² overlap
Orlovas (Ērgļu) purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.83 km² overlap
19 more protected areassorted by overlap area
Orlovas (Ērgļu) purvs
IUCN IVNature Reserve
17.82 km² overlap
Gruzdovas mež
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.31 km² overlap
Gruzdovas meži
IUCN IVNature Reserve
3.31 km² overlap
Katlešu meži
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.59 km² overlap
Katlešu meži
IUCN IVNature Reserve
1.59 km² overlap
Pērtupes meži
IUCN IVNature Reserve
1.36 km² overlap
Bolupes palienes meži
IUCN IVNature Reserve
1.34 km² overlap
Zodānu purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.96 km² overlap
Zodānu purvs
IUCN IVNature Reserve
0.96 km² overlap
Pokratas ezers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.52 km² overlap
Pokratas ezers
IUCN IVNature Reserve
0.52 km² overlap
Posolnīca
IUCN IVNature Reserve
0.41 km² overlap
Posolnīca
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.41 km² overlap
Kupravas liepu audze
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.33 km² overlap
Kupravas liepu audze
IUCN IVNature Reserve
0.32 km² overlap
Vorožas upes meži
IUCN IVNature Reserve
0.05 km² overlap
Kalna riests
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Kaļņa riests
IUCN IVMicro-reserve
0.02 km² overlap
Viricas upes meži
IUCN IVNature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
480 distinct species · 1 530 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Bolupe : 28 espèces reliées par 86 interactions GloBI sur 5 types (connectance 12.2%, 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°
4,9°C
Annual rain
640mm
Moisture idx (CMI)
0,05
Runoff
258mm/an
PET
608mm
AET
469mm
Mean slope
1,0°
Water table
52cm
Forest
36%
Crops
17%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)