Ruisseau· 2 segments
Gryźlina
Crosses 2 administrative regions : Iława, Ostróda
Total length
11km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
2
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- OstródaWarmińsko-Mazurskie · Poland12.3 kmin this dpt
- IławaWarmińsko-Mazurskie · Poland5.2 kmin this dpt
6 intersecting protected areas
Dolina Dolnej Drwęcy
IUCN Not AssignedProtected Landscape Area
Wzgórz Dylewskich
IUCN Not AssignedProtected Landscape Area
Dolina Drwęcy
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Landscape Park
Ostoja Dylewskie Wzgórza
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Rzeka Drwęca
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
65 distinct species · 106 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Gryźlina : 19 espèces reliées par 17 interactions GloBI sur 3 types (connectance 8.1%, filtre Serrano α=0.2). 2 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
11km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.