Svir Delta
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 1994
577 km²
District · RUS
Volkhovskiy rayon
Russia
DfbCold, no dry season, warm summer(100 %)
Species observed
1 490
Observations
7 818
Area
6 831,8km²
Ecological tissue
Sample of 30 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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Volkhovskiy rayon : 22 espèces reliées par 68 interactions GloBI sur 4 types (connectance 15.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
68
Connectance
0.156
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 490 distinct species · 7 818 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
4,6°C
Annual rain
780mm
Warmest m°
21,5°C
Coldest m°
-10,2°C
Elevation: 32 m on average (min 4 m, max 120 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
4,6°C
Annual rain
780mm
Warmest month
21,5°C
Coldest month
-10,2°C
Mean alt.
32m
Min
4m
Max
120m
Std. dev.
18m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,2
Org. C
136,0g/kg
Clay
19,5%
Sand
45,4%
Silt
35,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,1
Org. C
207,7g/kg
Clay
19,5%
Sand
44,9%
Silt
35,6%
5–15 cm
pH H₂O
5,2
Org. C
139,3g/kg
Clay
19,2%
Sand
45,2%
Silt
35,5%
15–30 cm
pH H₂O
5,4
Org. C
61,1g/kg
Clay
19,8%
Sand
46,2%
Silt
34,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest59.2%
Crops7.3%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)33.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology24 basins · 30 lakes · 59 rivers
Hydrology metrics for this exact territory
Stream length here
1 263,5km
Lake surface here
315,20km²
Basins crossed
24
Max stream order
7
Max drainage
277 908km²
Discharge in basins
2 685,3m³/s
Mean precip.
672mm/an
Mean T°
3,6°C
Moisture idx
0,14
Max snow
51%
Mean runoff
263mm/an
Mean elev. (basins)
34m
Watersheds crossing here
- Bassin de Сясьsub-area1 478,3 km²overlap1284.85 km²19%
- Bassin de Пашаsub-area876,9 km²overlap837.25 km²12%
- Bassin de Волховsub-area838,4 km²overlap757.99 km²11%
- Bassin de Воронежкаsub-area518,8 km²overlap521.71 km²8%
- Bassin de Новоладожский каналsub-area1 194 km²overlap464.54 km²7%
- Bassin de Назияsub-area1 406,2 km²overlap464.04 km²7%
- Bassin de Морьеsub-area1 845,1 km²overlap423.49 km²6%
- Bassin de Чёрнаяsub-area895 km²overlap323.02 km²5%
- Bassin de Олешняsub-area382 km²overlap251.87 km²4%
15 more basinssorted by overlap
- Bassin de Пашаsub-area1 186,7 km²overlap209.40 km²3%
- Bassin de Чаженкаsub-area205,2 km²overlap206.37 km²3%
- Bassin de Кондегаsub-area316,6 km²overlap165.68 km²2%
- Bassin de Шижняsub-area353,4 km²overlap148.30 km²2%
- Bassin de Староладожский каналsub-area290,3 km²overlap141.55 km²2%
- Bassin de Косопашаsub-area140 km²overlap125.56 km²2%
- Bassin de Воронежкаsub-area689,8 km²overlap122.65 km²2%
- Bassin de Староладожский каналsub-area237,6 km²overlap118.12 km²2%
- Bassin de Оятьsub-area1 410,7 km²overlap115.88 km²2%
- Bassin de Пашаsub-area48,8 km²overlap49.03 km²1%
- Bassin de Косопашаsub-area658,2 km²overlap47.15 km²1%
- Bassin de Волховsub-area126,4 km²overlap36.17 km²1%
- Bassin de Луненкаsub-area1 037,6 km²overlap10.28 km²0%
- Bassin de Корелкаsub-area72,4 km²overlap4.07 km²0%
- Bassin de Зубецsub-area404,2 km²overlap2.79 km²0%
Lakes (30, top by area)
- Ladogaarea17 444 km²avg depth48.0 m
- Загубская губаarea5,4 km²avg depth2.2 m
- Ozero Pergizhnoarea1,4 km²avg depth3.1 m
- Ozero Lebyazh’yearea1,1 km²avg depth1.4 m
- Lake #56607area1 km²avg depth4.6 m
- Lac 1286393area1 km²avg depth4.3 m
- Lac 1286918area0,8 km²avg depth5.1 m
- Lac 1286475area0,8 km²avg depth4.5 m
- Lac 1287261area0,6 km²avg depth3.5 m
21 more lakes
- Lac 1289550area0,6 km²avg depth3.4 m
- Lac 1284578area0,5 km²avg depth2.6 m
- Lac 1287715area0,5 km²avg depth5.7 m
- Lac 1286336area0,5 km²avg depth7.7 m
- Lac 1289046area0,4 km²avg depth1.9 m
- Lac 1285262area0,4 km²avg depth5.0 m
- Lac 1287187area0,3 km²avg depth6.4 m
- Lac 1288043area0,3 km²avg depth4.0 m
- Lac 1289216area0,2 km²avg depth1.3 m
- Lac 1288030area0,2 km²avg depth3.9 m
- Lac 1287988area0,2 km²avg depth3.5 m
- Lac 1286044area0,2 km²avg depth4.0 m
- Lac 1287809area0,2 km²avg depth4.1 m
- Lac 1288652area0,2 km²avg depth1.7 m
- Lac 1288176area0,1 km²avg depth2.7 m
- Lac 1288983area0,1 km²avg depth1.7 m
- Lac 1287238area0,1 km²avg depth2.5 m
- Lac 1287197area0,1 km²avg depth3.5 m
- Lac 1287218area0,1 km²avg depth2.1 m
- Lac 1286914area0,1 km²avg depth4.0 m
- Lac 1284596area0,1 km²avg depth2.1 m
Rivers / streams (59, ord ≥ 4)
- Сясьord 5len here101.30 km37%total272 km
- Пашаord 5len here100.58 km32%total311 km
- Волховord 7len here93.85 km27%total345 km
- Новоладожский каналord 3len here83.11 km71%total117 km
- Лыннаord 4len here62.42 km100%total62 km
- Воронежкаord 3len here46.90 km93%total51 km
- Староладожский каналord 5len here46.67 km82%total57 km
- Кусегаord 1len here38.29 km100%total38 km
- Косопашаord 6len here36.10 km97%total37 km
- Полонаord 3len here34.16 km100%total34 km
- Кобонаord 3len here33.92 km100%total34 km
- Чаженкаord 3len here33.31 km100%total33 km
47 more river segmentssorted by Strahler order + length
- Кондегаord 3len here30.22 km85%total36 km
- Сязнегаord 5len here25.30 km63%total40 km
- Валгомкаord 3len here24.61 km100%total25 km
- Сарьяord 3len here24.43 km100%total24 km
- Малая Рыбежкаord 2len here22.92 km100%total23 km
- Салмаord 2len here21.68 km77%total28 km
- Масельгаord 1len here21.27 km100%total21 km
- Вяницаord 1len here20.59 km100%total21 km
- Олешняord 3len here20.44 km42%total49 km
- Вихмязьord 1len here19.68 km100%total20 km
- Задневкаord 3len here19.40 km62%total31 km
- Заклюкаord 1len here17.19 km100%total17 km
- Рыбежкаord 2len here16.40 km29%total57 km
- Сестраord 7len here16.28 km89%total18 km
- Влояord 3len here15.42 km68%total23 km
- Ширицаord 2len here14.72 km100%total15 km
- Саркаord 4len here14.22 km10%total143 km
- Мочаord 1len here13.46 km100%total13 km
- Сырецкаяord 1len here13.05 km100%total13 km
- Златынкаord 1len here11.00 km100%total11 km
- Шижняord 3len here10.59 km16%total68 km
- Лаваord 4len here10.54 km40%total27 km
- Ютикаord 2len here10.42 km100%total10 km
- Марьинкаord 1len here10.37 km100%total10 km
- Еленаord 2len here10.10 km100%total10 km
- Кивуйкаord 1len here9.97 km100%total10 km
- Валяord 5len here9.19 km52%total18 km
- Сузнаord 5len here8.55 km100%total9 km
- Викшенькаord 2len here8.07 km28%total29 km
- Соколийord 2len here7.83 km100%total8 km
- Елена (Ладожка)ord 2len here7.77 km100%total8 km
- Большая Рыбежкаord 1len here7.42 km65%total11 km
- Гаричиord 2len here6.57 km100%total7 km
- Тящевкаord 2len here6.48 km100%total6 km
- Прусыняord 7len here5.91 km31%total19 km
- Пярнуйord 1len here5.90 km43%total14 km
- Свирьord 6len here5.73 km2%total302 km
- Суксаord 1len here4.39 km45%total10 km
- Песенкаord 1len here4.11 km100%total4 km
- Ругалаord 1len here3.04 km100%total3 km
- Оятьord 5len here2.96 km1%total249 km
- Лебединаord 2len here2.92 km24%total12 km
- Горелецкойord 1len here2.62 km51%total5 km
- Зеленецкий проливord 2len here2.56 km22%total12 km
- Викшеньгаord 5len here2.54 km100%total3 km
- Медвежкаord 1len here2.10 km56%total4 km
- Жупкаord 7len here1.97 km100%total2 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,1nW
Built-up
5,6%
Pesticides
2,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN III · 3IUCN Not Reported · 1
Staroladozhskij
IUCN IIINatural Monument · 1996
4 km²
Kan`on reki Lava
IUCN IIINatural Monument · 1996
2 km²
Nizhnevolhovskij
IUCN IIINatural Monument · 2016
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN