Rivière· 64 segments
Тверца
Crosses 6 administrative regions : Kalininskiy rayon, Spirovskiy rayon, Torzhok, Torzhokskiy rayon, Tver' +1
Total length
186km
Max discharge
45,9m³/s
Max Strahler
5
Segments matched
64
River geography6 admin regions · 0 communes
6 administrative regions crossed (GADM L2)
- Torzhokskiy rayonTver' · Russia117.7 kmin this dpt
- Vyshnevolotskiy rayonTver' · Russia54.6 kmin this dpt
- Kalininskiy rayonTver' · Russia41.1 kmin this dpt
- Spirovskiy rayonTver' · Russia21.4 kmin this dpt
- Tver'Tver' · Russia5.1 kmin this dpt
- TorzhokTver' · Russia1.7 kmin this dpt
7 intersecting protected areas
State Natural Zakaznik
State Natural Zakaznik
Les u d. Novoe Vishen`e
IUCN IVState Natural Zakaznik
State Natural Zakaznik
Zelyonaya zona Bab`e
IUCN IIINatural Monument
Natural Monument
Park Gruziny
IUCN Not ReportedNatural Monument
1 page = 1 named river (aggregation of 64 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
19 distinct species · 21 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Тверца : 16 espèces reliées par 11 interactions GloBI sur 2 types (connectance 9.2%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
186km
Max discharge
45,9m³/s
Max Strahler
5
Segments matched
64
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.