Database release:

For Special Protection Areas (SPA),
Proposed Sites for Community Importance (pSCI),
Sites of Community Importance (SCI) and
for Special Areas of Conservation (SAC)



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1.1 Type


1.2 Site code


1.3 Site name

Žuvinto ežeras ir Buktos miškas

1.4 First Compilation date


1.5 Update date


1.6 Respondent:

Name/Organisation:State Service for Protected Areas under the Ministry of Environment

1.7 Site indication and designation / classification dates

Date site proposed as SCI:2004-04
Date site confirmed as SCI: No data
Date site designated as SAC:2009-03
National legal reference of SAC designation:


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2.1 Site-centre location [decimal degrees]:


2.2 Area [ha]


2.3 Marine area [%]


2.4 Sitelength [km]:


2.5 Administrative region code and name

NUTS level 2 code Region Name

2.6 Biogeographical Region(s)

Boreal (100.00 %)


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3.1 Habitat types present on the site and assessment for them

Annex I Habitat types Site assessment
Code PF NP Cover [ha] Cave [number] Data quality A|B|C|D A|B|C
      RepresentativityRelative SurfaceConservationGlobal
3140  info      760  0.00 
3160  info      0.8  0.00   
6410  info      13.3  0.00   
6430  info      0.4  0.00   
6450  info      56.3  0.00 
6510  info      7.3  0.00   
7110  info      1855  0.00   
7120  info      1158.2  0.00 
7140  info      375.5  0.00   
7160  info      2.7  0.00 
7230  info      59.6  0.00   
9050  info      26  0.00   
9080  info      575.8  0.00   
9160  info      605.4  0.00   
91D0  info      2875.2  0.00   
91E0  info      860.6  0.00   
  • PF: for the habitat types that can have a non-priority as well as a priority form (6210, 7130, 9430) enter "X" in the column PF to indicate the priority form.
  • NP: in case that a habitat type no longer exists in the site enter: x (optional)
  • Cover: decimal values can be entered
  • Caves: for habitat types 8310, 8330 (caves) enter the number of caves if estimated surface is not available.
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation)

3.2 Species referred to in Article 4 of Directive 2009/147/EC and listed in Annex II of Directive 92/43/EEC and site evaluation for them

Species Population in the site Site assessment
G Code Scientific Name S NP T Size Unit Cat. D.qual. A|B|C|D A|B|C
      MinMax  Pop.Con.Iso.Glo.
A1188Bombina bombina    51  100   
P1393Drepanocladus vernicosus             
I1081Dytiscus latissimus      DD       
I6169Euphydryas maturna      DD       
P1903Liparis loeselii       
M1355Lutra lutra    10   
I1060Lycaena dispar      DD       
P1528Saxifraga hirculus    51  100   
I1014Vertigo angustior   
  • Group: A = Amphibians, B = Birds, F = Fish, I = Invertebrates, M = Mammals, P = Plants, R = Reptiles
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Type: p = permanent, r = reproducing, c = concentration, w = wintering (for plant and non-migratory species use permanent)
  • Unit: i = individuals, p = pairs or other units according to the Standard list of population units and codes in accordance with Article 12 and 17 reporting (see reference portal)
  • Abundance categories (Cat.): C = common, R = rare, V = very rare, P = present - to fill if data are deficient (DD) or in addition to population size information
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation); VP = 'Very poor' (use this category only, if not even a rough estimation of the population size can be made, in this case the fields for population size can remain empty, but the field "Abundance categories" has to be filled in)

3.3 Other important species of flora and fauna (optional)


Population in the site


Group CODE Scientific Name S NP Size Unit Cat. Species Annex Other categories
     MinMax C|R|V|PIVVABCD
Corallorhiza trifida               
Dactylorhiza baltica               
Dactylorhiza maculata               
Dactylorhiza russowii               
Genciana pneumonanthe               
Hammarbya paludosa               
Malaxis monophylos               
Nuphar pumila               
Nymphaea alba               
Pedicularis sceptrum-carolinum               
Salix lapponum               
Viola stagnina               
  • Group: A = Amphibians, B = Birds, F = Fish, Fu = Fungi, I = Invertebrates, L = Lichens, M = Mammals, P = Plants, R = Reptiles
  • CODE: for Birds, Annex IV and V species the code as provided in the reference portal should be used in addition to the scientific name
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Unit: i = individuals, p = pairs or other units according to the standard list of population units and codes in accordance with Article 12 and 17 reporting, (see reference portal)
  • Cat.: Abundance categories: C = common, R = rare, V = very rare, P = present
  • Motivation categories: IV, V: Annex Species (Habitats Directive), A: National Red List data; B: Endemics; C: International Conventions; D: other reasons


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4.1 General site character

Habitat class % Cover

Total Habitat Cover


Other Site Characteristics

Zuvintas site is located in a depression of limnoglacial plain and includes the eutrophic lake Þuvintas, two areas of raised bogs and fens. Geomorphologically, several relief complexes can be distinguished in the environs of Þuvintas. In the southern part, Teizai-Verstaminai moraine massif stretches, where hills are up to 200 m high above sea level. In the north, belt of undulating relief separates Þuvintas from Amalvas bog and lake. Limnoglacial plain stretch around Þuvintas and Amalvas. Here raised bogs, small lakes and rivulet valleys are abundant. A lock-regulator is built at the source of Dovinë stream, and fluctuation of water level in the lake was decreased from 0.9 m to 0.1 m. The Þuvintas lake is overgrown and highly eutrophic shallow lake (maximum depth is 3.4 m) with a deep silt layer on the bottom and numerous floating islands. It lies in the Dovinë river catchment area. Other bigger streams are Kiaulyèia and Rudë. Around 20 000 tonnes of biogenic substances annually enter the lake by Bambena stream; around 3 500 tonnes of these substances eneter also from the catchment area of the lake. In the western part of the raised bog, a small Polimas lake (0.3 ha) is situated. On the western edge of Þuvintas lake, flood-lands stretch that comprise raised bogs, transitional mires and fens. 12 thousand years ago, a large shallow lake was stretching in this place. In the course of time it became overgrown with vegetation, and peat started to develop. The surface of water in the lake was rapidly decreasing and in 1986 its area was only 880 ha. The average depth of the lake is about 0.6 m. On the edges of the lake, about 2 000 ha of fens stretch, while westwards and northwestwards from the lake - about 3 400 ha of raised bogs lie. Between these bogs, transitional mires penetrate by small stretches. An environs of Zuvintas is one of the warmest places in Lithuania. Precipitation is also not abundant - less than 600 mm annually. The average thickness of the snow cover in only 15 cm. Bukta forest is westwards from Þuvintas. It comprises southeastern edge of Zuvintas palios (flood-lands) and moraine plains till Sesupe rivers on clay soils. Species composition of the forest - spruce and deciduous trees. Ecological features. The major part of the area of the Zuvintas is occupied by raised bogs consisting of two massifs separated by the Dovine river, fens and forest adjacent to the river. Bogmoss pine forests grow on the slopes of raised bogs, whereas in open areas, communities with Calluna vulgaris, Eriophorum vaginatum, and Sphagnum species (Sph. magellanicum, Sph. Fuscum, Sph. Rubellum) prevail. Large areas of reedmarshes and sedge fens (with dominating Carex omskiana, C.diandra, C.disticha) occur mainly in the south-east. The fen is an important habitat for waterfowl, however it is rapidly overgrowing with bushes. Meadow and forest plant communities occupy only 2.3% of the territory and mostly occur at the administration building of the Reserve and in the forest. Lake Þuvintas is a typical overgrowing lake. According to the distribution of aquatic vegetation, the lake belongs to the beltwise-continuous vegetation type. Floating islands formed of interlaced rhizomes of Typha angustifolia, Phragmites australis and other macrophytes are particularly characteristic of this lake. The lake bottom is overgrown with Chara and Potamogeton species, large open surface areas are covered with communities of lymneids (Nymphaea candida, Potamogeton natans, Nuphar lutea). The surrounding wet and humid forests consist mainly of black alder and birch. A great diversity of habitats and vegetation creates excellent conditions for numerous waterfowl.

4.2 Quality and importance

The site distinguished by a wetland complex with very mosaic habitats. It is of regional importance for maintaining the biodiversity. It is the important breeding and staging site for many rare and vulnerable species of birds. The site contains a representative and unique example of natural or near-natural wetland type. The site also supports vulnerable, endangered and critically endangered species and threatened ecological communities.

4.3 Threats, pressures and activities with impacts on the site

The most important impacts and activities with high effect on the site

Negative Impacts
RankThreats and pressures [code]Pollution (optional) [code]inside/outside [i|o|b]
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]

Rank: H = high, M = medium, L = low
Pollution: N = Nitrogen input, P = Phosphor/Phosphate input, A = Acid input/acidification,
T = toxic inorganic chemicals, O = toxic organic chemicals, X = Mixed pollutions
i = inside, o = outside, b = both

4.5 Documentation

Lapele M., Sarkiniene I.1987. Flora of Þuvintas Strict Nature Reserve, Moscow (in Russian).Lapele M. (ed.). Flora and fauna of Lithuanian State Strict Nature Recerves: 1-168 (in Lithuanian).The Zuvintas Strict Nature Resereve. 1968. A monograph, Vilnius (in Russian with English summary).The Zuvintas Reserve.1993. Vilnius, "Academia": 1-566 (in Russian with English summary).Svazas S., Drobelis E., Balciauskas L. and Raudonikis L. 1999. Important wetlands in Lithuania. Vilnius: 192 pp.


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5.1 Designation types at national and regional level:

Code Cover [%]

5.3 Site designation (optional)

Zuvintas State Strict Nature Reserve was established in 1937. The site was designated as Ramsar site in 1993. The site and adjacent territories were pransformed into Biosphere Reserve in 2003.


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6.1 Body(ies) responsible for the site management:

Organisation:Žuvintas Biosphere Reserve administration

6.2 Management Plan(s):

An actual management plan does exist:

No, but in preparation



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