Ruisseau· 4 segments
Polnica
Crosses 3 administrative regions : Koszalin, Koszalin (City), Sławno
Total length
28km
Max discharge
2,8m³/s
Max Strahler
3
Segments matched
4
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- KoszalinZachodniopomorskie · Poland27.3 kmin this dpt
- SławnoZachodniopomorskie · Poland1.7 kmin this dpt
- Koszalin (City)Zachodniopomorskie · Poland0.0 kmin this dpt
5 intersecting protected areas
Koszaliński Pas Nadmorski
IUCN Not AssignedProtected Landscape Area
Dolina Radwi, Chocieli i Chotli
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Dolina Bielawy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rekowski Wrzosiec
IUCN Not AssignedNature Reserve
Sieciemińskie Rosiczki
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
119 distinct species · 178 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Polnica : 30 espèces reliées par 74 interactions GloBI sur 4 types (connectance 12.4%, filtre Serrano α=0.2). 5 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
28km
Max discharge
2,8m³/s
Max Strahler
3
Segments matched
4
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.