HydroBASINS lev08 watershed · #2080332130
Bassin de Wda
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 3 administrative regions : Chojnice, Kościerzyna, Starogard
Sub-basin area
289,2km²
Upstream area
650,8km²
Discharge
7,29m³/s
Mean elev.
147m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rakownica194 km²
- Bassin de Wda167 km²
3 dept-equivalent regions (GADM L2)
- 224.0 km²77.1% of basin
- 34.7 km²12.0% of basin
- 31.7 km²10.9% of basin
9 intersecting protected areas
Bory Tucholskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
289.96 km² overlap
Landscape Park
126.93 km² overlap
Jeziora Wdzydzkie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
93.45 km² overlap
Borów Tucholskich
IUCN Not AssignedProtected Landscape Area
72.75 km² overlap
Północny - Część Wschodnia
IUCN Not AssignedProtected Landscape Area
34.21 km² overlap
Lipuski
IUCN Not AssignedProtected Landscape Area
9.63 km² overlap
Doliny Wierzycy
IUCN Not AssignedProtected Landscape Area
0.87 km² overlap
Kręgi Kamienne
IUCN IVNature Reserve
0.18 km² overlap
Krwawe Doły
IUCN IVNature Reserve
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 307 distinct species · 5 676 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Wda : 37 espèces reliées par 58 interactions GloBI sur 5 types (connectance 5.9%, filtre Serrano α=0.2). 8 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°
6,6°C
Annual rain
619mm
Moisture idx (CMI)
-0,03
Runoff
288mm/an
PET
637mm
AET
484mm
Mean slope
1,3°
Water table
136cm
Forest
75%
Crops
14%
Urban
0%
Protected
59%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)