Rivière· 42 segments
Gwda
Crosses 5 administrative regions : Czarnków-Trzcianka, Człuchów, Piła, Szczecinek, Złotów
Total length
145km
Max discharge
45,2m³/s
Max Strahler
5
Segments matched
42
River geography5 admin regions · 0 communes
5 administrative regions crossed (GADM L2)
- ZłotówWielkopolskie · Poland74.1 kmin this dpt
- PiłaWielkopolskie · Poland60.5 kmin this dpt
- SzczecinekZachodniopomorskie · Poland35.1 kmin this dpt
- CzłuchówPomorskie · Poland17.0 kmin this dpt
- Czarnków-TrzciankaWielkopolskie · Poland0.8 kmin this dpt
12 intersecting protected areas
Puszcza nad Gwdą
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Dolina Noteci
IUCN Not AssignedProtected Landscape Area
Pojezierze Wałeckie i Dolina Gwdy (woj. wielkopolskie)
IUCN Not AssignedProtected Landscape Area
Dolina Noteci
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Dolina Środkowej Noteci i Kanału Bydgoskiego
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Jeziora Szczecineckie
IUCN Not AssignedProtected Landscape Area
Nadnoteckie Łęgi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Jeziora Szczecineckie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Ostoja Pilska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3 more protected areassorted by area
Dolina Debrzynki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Dolina Gwdy
IUCN IVNature Reserve
Dolina Szczyry
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1 page = 1 named river (aggregation of 42 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
162 distinct species · 263 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Gwda : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 61 interactions GloBI sur 6 types (connectance 8.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
145km
Max discharge
45,2m³/s
Max Strahler
5
Segments matched
42
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.