Wetland of International Importance (Ramsar Site) · rus
Oka & Pra River Floodplains
- Area
- 1 348 km²
- IUCN cat.
- Not Reported
- Year
- 1994
Overview
- Designation
- Wetland of International Importance (Ramsar Site)
- Established
- 1994
- Managing authority
- Not Reported
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 522 distinct species · 16 969 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Oka & Pra River Floodplains : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 3 types (connectance 17.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology10 basins · 24 lakes · 11 rivers
Hydrology metrics for this exact territory
Stream length here
221,9km
Lake surface here
43,66km²
Basins crossed
10
Max stream order
5
Max drainage
124 632km²
Discharge in basins
96,7m³/s
Mean precip.
587mm/an
Mean T°
4,8°C
Moisture idx
-0,13
Max snow
42%
Mean runoff
183mm/an
Mean elev. (basins)
118m
Watersheds crossing here
- Bassin de Праsub-area1 295,4 km²overlap600.83 km²45%
- Bassin de Праsub-area276,2 km²overlap166.10 km²12%
- Bassin de Солотчаsub-area1 031,7 km²overlap154.31 km²11%
- Bassin de Ламшинская канаваsub-area224,8 km²overlap140.42 km²10%
- Bassin de Праsub-area584,1 km²overlap129.92 km²10%
- Bassin de Ялмаsub-area759,4 km²overlap101.06 km²7%
- Bassin de Посердаsub-area302,2 km²overlap18.15 km²1%
- Bassin de Окаsub-area777,9 km²overlap17.79 km²1%
- Bassin de Белаяsub-area262,7 km²overlap17.19 km²1%
1 more basinssorted by overlap
Lakes (24, top by area)
- Ozero Velikoyearea23,7 km²avg depth2.2 m
- Ozero Imlesarea12,7 km²avg depth1.2 m
- Ozero Ivanovskoyearea6,1 km²avg depth5.2 m
- Ozero Beloyearea3,1 km²avg depth2.5 m
- Ozero Sokorevoarea2,6 km²avg depth3.9 m
- Ozero Lebedinoyearea1,5 km²avg depth2.3 m
- Мартыновоarea1 km²avg depth1.9 m
- Lac 1315875area0,9 km²avg depth2.4 m
- Lac 1316217area0,7 km²avg depth2.1 m
15 more lakes
- Lac 1316224area0,7 km²avg depth4.0 m
- Lac 1315509area0,7 km²avg depth3.0 m
- Lac 1317572area0,5 km²avg depth3.7 m
- Lac 1315191area0,4 km²avg depth1.4 m
- Lac 1315114area0,4 km²avg depth3.3 m
- Lac 1315747area0,3 km²avg depth2.6 m
- Lac 1316550area0,3 km²avg depth3.1 m
- Lac 1317389area0,3 km²avg depth3.4 m
- Lac 1317561area0,2 km²avg depth3.3 m
- Lac 1315822area0,2 km²avg depth2.1 m
- Lac 1315758area0,2 km²avg depth1.3 m
- Lac 1316125area0,2 km²avg depth3.2 m
- Lac 1316895area0,2 km²avg depth2.8 m
- Lac 1316338area0,2 km²avg depth2.1 m
- Lac 1317490area0,2 km²avg depth3.5 m
Rivers / streams (11, ord ≥ 4)
- Праord 5len here148.89 km73%total205 km
- Кадьord 2len here17.19 km18%total96 km
- Ялмаord 4len here14.49 km20%total74 km
- Ламшинская канаваord 2len here10.01 km77%total13 km
- Совкаord 3len here7.93 km24%total34 km
- Ламшаord 2len here5.82 km24%total25 km
- Вожаord 4len here5.44 km4%total140 km
- Филиповкаord 2len here4.81 km100%total5 km
- Воровкаord 2len here3.74 km26%total14 km
- Окаord 8len here2.06 km0%total2000 km
- Уражord 2len here1.55 km10%total16 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 54.75091, 40.77283
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.