Ruisseau· 3 segments
Kalwa
Crosses 2 administrative regions : Olsztyn, Szczytno
Total length
5km
Max discharge
1,8m³/s
Max Strahler
2
Segments matched
3
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- SzczytnoWarmińsko-Mazurskie · Poland31.1 kmin this dpt
- OlsztynWarmińsko-Mazurskie · Poland0.8 kmin this dpt
5 intersecting protected areas
Puszczy Napiwodzko-Ramuckiej
IUCN Not AssignedProtected Landscape Area
Puszcza Napiwodzko-Ramucka
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Obszar Chronionego Krajobrazu Pojezierza Olsztyńskiego
IUCN Not AssignedProtected Landscape Area
Ostoja Napiwodzko-Ramucka
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Jezioro Kośno
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
119 distinct species · 167 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 Kalwa : 34 espèces reliées par 77 interactions GloBI sur 5 types (connectance 8.5%, 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
5km
Max discharge
1,8m³/s
Max Strahler
2
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.