Database release:

SDF

NATURA 2000 - STANDARD DATA FORM

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

SITE	BG0000182
SITENAME	Orsoya

1. SITE IDENTIFICATION
2. SITE LOCATION
3. ECOLOGICAL INFORMATION
4. SITE DESCRIPTION
5. SITE PROTECTION STATUS
6. SITE MANAGEMENT
7. MAP OF THE SITE

1. SITE IDENTIFICATION

1.1 Type

1.2 Site code

BG0000182

1.3 Site name

Orsoya

1.4 First Compilation date

2005-12

1.5 Update date

2018-12

1.6 Respondent:

Name/Organisation:	Ministry of Environment and Water, “National Nature Protection Service” Directorate
Address:	Sofia 22 Sofia 1000 Kn. Maria Luiza Blvd.
Email:	natura2000@moew.government.bg

1.7 Site indication and designation / classification dates

Date site proposed as SCI:	2007-03
Date site confirmed as SCI:	2008-12
Date site designated as SAC:	No data
National legal reference of SAC designation:	No data

Explanation(s):

Adopted by Council of Ministers Decision No. 122/02.03.2007 (promulgated SG 21/2007). Extended by Council of Ministers Decision No. 811/16.11.2010 (promulgated SG 96/2010).

2. SITE LOCATION

2.1 Site-centre location [decimal degrees]:

Longitude:	23.050600
Latitude:	43.785000

2.2 Area [ha]

2949.4139

2.3 Marine area [%]

0.0000

2.4 Sitelength [km]:

0.00

2.5 Administrative region code and name

NUTS level 2 code	Region Name
BG31	Severozapaden
BG31	Severozapaden

2.6 Biogeographical Region(s)

Continental

(100.00 %)

3. ECOLOGICAL INFORMATION

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
						Representativity	Relative Surface	Conservation	Global
2340			616.16	0.00	M	A	A	B	A
3130			4.92552	0.00		C	C	C	C
3150			130.364	0.00		C	C	C	C
3260			34.27	0.00	G	C	C	C	C
3270			4.32	0.00	G	C	C	C	C
6430			250.02	0.00	M	A	B	B	A
91E0			90.02	0.00	M	A	C	B	A
91F0			58.88	0.00	M	B	C	B	B

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
						Min	Max				Pop.	Con.	Iso.	Glo.
F	4125	Alosa immaculata			r				R	DD	C	B	C	B
F	1130	Aspius aspius			p	5351710	5351710	area	P	P	C	A	C	A
A	1188	Bombina bombina			p	3	3	localities	V	P	C	A	C	B
F	1149	Cobitis taenia			p	26891	26891	i	C	G	C	A	C	A
R	1220	Emys orbicularis			p	5	5	localities	R	M	C	A	C	B
F	2484	Eudontomyzon mariae			p	5374900	5374900	area	V	P	C	A	B	A
F	2555	Gymnocephalus baloni			p	4435090	4435090	area	P	P	C	A	C	A
F	1157	Gymnocephalus schraetzer			p	5083130	5083130	area	P	P	C	A	C	A
M	1355	Lutra lutra			p	7	8	i		G	C	A	C	A
M	2609	Mesocricetus newtoni			p				P	DD	D
F	1145	Misgurnus fossilis			p	62828	62828	i	C	G	B	A	C	A
F	2522	Pelecus cultratus			p	5350000	5350000	area	P	P	C	A	B	A
F	5339	Rhodeus amarus			p	149702	149702	i	R	G	C	A	C	A
F	5329	Romanogobio vladykovi			p	5349300	5349300	area	C	P	C	A	B	A
F	1146	Sabanejewia aurata			p	5353650	5353650	area	P	P	C	A	C	A
M	1335	Spermophilus citellus			p				P	DD	D
I	4064	Theodoxus transversalis			p	930	930	i	V	M	C	A	C	A
A	1993	Triturus dobrogicus			p	1	1	localities	V	P	C	A	C	A
I	1032	Unio crassus			p	13446	13446	i	R	M	C	B	C	B
F	1160	Zingel streber			p	5349650	5349650	area	P	P	C	A	C	A
F	1159	Zingel zingel			p	5349650	5349650	area	P	P	C	A	C	A

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)

Species					Population in the site				Motivation
Group	CODE	Scientific Name	S	NP	Size		Unit	Cat.	Species Annex		Other categories
					Min	Max		C\|R\|V\|P	IV	V	A	B	C	D
P		Alkanna tinctoria						R						X
I		Asellus aquaticus									X
A		Bufo viridis						C					X
F		Carassius auratus												X
P		Centaurea arenaria						R			X
R		Coluber caspius											X
I		Cybister laterimarginalis									X
F		Cyprinus carpio						P						X
R		Elaphe longissima						C					X
I		Erpobdella octoculata									X
F		Esox lucius						P						X
I		Glossiphonia complanata									X
I		Hirudo medicinalis											X
A		Hyla arborea						C					X
R		Lacerta viridis						C					X
F		Leucaspius delineatus											X
I		Lymnaea stagnalis									X
R		Natrix tessellata						P					X
P		Nuphar lutea						R			X
P		Nymphaea alba						R			X
P		Nymphoides peltata						R			X
A		Pelobates fuscus						C					X
A		Pelobates syriacus						C					X
I		Planorbarius corneus									X
I		Planorbis planorbis									X
R		Podarcis taurica											X
F		Proterorhinus marmoratus						P						X
I		Radix auricularia									X
A		Rana dalmatina						R					X
F		Sabanejewia bulgarica						P				X
P		Salvinia natans						R					X
P		Senecio paludosus						R			X
F		Silurus glanis						P						X
I		Stagnicola palustris									X
P		Utricularia vulgaris						R			X
R		Vipera ammodytes						P					X
I		Viviparus viviparus									X

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

4. SITE DESCRIPTION

4.1 General site character

Habitat class	% Cover
N06	18.00
N07	38.00
N08	1.00
N09	18.00
N10	13.00
N16	1.00
N20	11.00
Total Habitat Cover	100

Other Site Characteristics

The site comprises the former Orsoya marsh, located at the bank of the Danube. It also includes a group of islands and a part of the bank, covered by forest vegetation. There are systems of dikes, cannals, pumps and other draining facilities. The main habitats in the former marsh are the areas, covered by marsh vegetation, where reed and rush communities dominate. There are also open water surfaces as well as humid meadows. The cultivation of the arable land depends on the success of the draining activities.

4.2 Quality and importance

The site is a former floodplain, which was drained. The arable lands were used, but now are abandoned. There is a natural restoration of the former marshes. There are sand dunes in the plain, which cover very big area. They are the most representative in Bulgaria. The former breeding-ponds of Orsoya are abandoned and now they are with natural regime of floodinga and are covered by different aquatic plant communities. The near Kovachev (Dobrina) Island is covered by natural alluvial forest (Salix, Populus, Ulmus, Quercus robur, Fraxinus oxycarpa).

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
Rank	Threats and pressures [code]	Pollution (optional) [code]	inside/outside [i\|o\|b]
M	A01		o
L	A01		i
L	A04		b
M	B		o
M	B01.02		i
L	B02.02		i
M	C01.01		i
M	D01.02		i
M	E03.01		i
L	F02.01.02		i
M	F03.01		b
M	F03.02.03		i
M	I01		b
H	J02.01.01		i
H	J02.01.02		i
L	K02.02		i
M	K02.03		i

Positive Impacts
Rank	Activities, management [code]	Pollution (optional) [code]	inside/outside [i\|o\|b]
M	A01		o
M	B01.02		i
L	F02.01.02		i
M	F03.01		o

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

Initial proposal and description of the site made by T. Trichkova, T. Stefanov, M. Vasilev, M. Zhivkov - Institute of Zoology, 1 Tsar Osvoboditel Blvd., 1000 Sofia; Mladen Angelov - Green Balkans Federation; Dr. R. Tzonev - Sofia University; Dr. Georgi Hinkov - Forest Research Institute, BAS. Initially listed publications:" Arnold, E., J. Burton, D. Ovenden. 1992. A field guide to the Reptiles and Amphibians of Britain and Europe. Collins Publ., London, 272 pp. " Benda, P., T. Ivanova, I. Horacek, V. Hanak, J. Gaisler, J. Cerveny, J. Gaisler, A. Georgieva, B. Petrov, V. Vohralik. 2003. Bats (Mammalia: Chiroptera) of the Eastern Mediterranean. Part 3. Review of bat distribution in Bulgaria. Acta Soc. Zool. Bohem., 67, 245-357. " Cramp, St. 1983. Handbook of the Birds of Europe the Middle East and North Africa. The Birds of the Western Palearctic. Volume 4. Oxford University Press, 48-62 pp. " Cramp, St., K. Simmons et al. 1977. Handbook of the Birds of Europe the Middle East and North Africa. The Birds of the Western Palearctic. Volume I : Ostrich to Ducks. Oxford University Press. " Delany, S., C. Reyes, E. Hubert, S. Pihl, E. Rees, L. Haanstra, A. Strien. 1999. Results from the International Waterbird Census in the Westwrn Paleactic and Southwest Asia 1995 and 1996. Wetlands International Publication, 54, 178 pp. " Georgiev, D. 2003. A report of Mesocricetus newtoni (Mammalia: Cricetidae) from South-Eastern Bulgaria. Trav. Sci. Univ. Plovdiv, Animalia, 39 (6), 107-110. " Ivanova, T. 2005. Important Bat Underground Habitats (IBUH) in Bulgaria. Acta zool. Bulg. " Horacek, I., J. Cerveny, A. Tausl, D. Vitek. 1974. Notes on the Mammal fauna of Bulgaria (Insectivora, Chiroptera, Rodentia). Vestnik Cesk. Spol. Zool., XXXVIII, 1,19-31. " Karapetkova, M., M. Zhivkov . 1995. Fish in Bulgaria. Sofia. "Gea Libris", 247 pp. " Kavrakova, V., D. Dimova, M. Dimitrov, R. Tsonev, T.Belev (ed.). 2005. Guide for identification of habitats of European significance in Bulgaria. WWF DCP, Green Balkans Federation. Sofia. 128 pp. " Kostadinova, I. (compiler). 1997. Important Bird Areas in Bulgaria. BSPB, Sofia. " Kostadinova, I., S. Dereliev. 2001. Results from the midwinter census of waterfowl in Bulgaria for the period 1997-2001 year, Sofia. " Macdonald, D., P. Barret. 1993. Mammals of Britain & Europe. Collins field guide, Harper Collins Publ., London, 312 pp. " Michev, T., L. Profirov. 2003. Mid-winter Numbers of Waterbirds in Bulgaria (1977-2001). Results form 25 years of mid-winter counts carried out at the most important Bulgarian wetlands. Sofia - Moscow, 160. " Mihov, S. 2002. Field guide of amphibians in Bulgaria, Bourgas Wetlands, 45 pp. " Milchev, B., Z. Boev, V. Georgiev. 2004. Die Nahrung der Schleiereule (Tyto alba) in Sudost-Bulgarien. Egretta, 47, 66-77. " Nankinov, D., S. Simeonov, T. Michev, B. Ivanov. 1997. Fauna of Bulgaria. Vol. 26: Aves, Part . Sofia, Academic Publishing House "Prof. M. Drinov", 427 pp. " Nankinov, D. et al. 2004.Breeding totals of the ornithofauna in Bulgari. Green Balkans, Plovdiv, 32 pp. " Ornithological database of Green Balkans Federation of Nature Conservation NGOs. " Patev, P. 1950. Birds in Bulgaria. BAS, Sofia, 364 pp. " Peshev, T., D. Peshev, V. Popov. 2004. Fauna of Bulgaria. Vol. 27: Mammalia.Sofia. Academic Publishing House "Prof. M. Drinov", 632 pp. " Popov, V. 2003. Mammals in Bulgaria. Vitosha Nature Park Directorate, Sofia, "Geosoft", 291 pp. " Roché, J. 2000. Die Vogelstimmen Europas auf 4 CDs - Rufe und Gesänge. "Kosmos". " Shurulinkov, P., R. Tsonev, B. Nikolov, G. Stoyanov, L. Assenov. 2005. Birds of Middle Danube Plain. Sofia. 120 pp. In Bulgarian. " Simeonov, S., T. Michev. 1991. The birds of the Balkan Peninsula. "Peter Beron", Sofia, 249 pp. " Simeonov, S., T. Michev, D. Nankinov. 1990. Fauna in Bulgaria. Vol. 20 Aves. Part . S., BAS, 350 pp. " Simeonov, S., T. Michev. 1991. Birds of the Balkan Peninsula. Peter Beron, Sofia, 245 pp. " Swensson, L. 1992. Identification guide to European Passerines. Stockholm. " Swensson L., P. Grant. 2000. Bird guide. Harper Collins Publishers, London, 392 pp. " CORINE BIOTOPES database " Sakalyan, M. (eds.). 1993. National Strategy for Biodiversity Conservation. Main Reports. Volume 1 Data revised by a team of Bulgarian Academy of Sciences (http://www.bas.bg). Data revised by a team of the Institute for Biodiversity and Ecosystem Research, BAS. New data provided by project "Mapping and assessment of the conservation status of the natural habitats and species - Phase 1" (see link).

Link(s):http://natura2000.moew.government.bg/Home/ProtectedSite?code=BG0000182&siteType=HabitatDirective

5. SITE PROTECTION STATUS

5.1 Designation types at national and regional level:

Code	Cover [%]
BG00	94.67
BG06	5.33

5.2 Relation of the described site with other sites:

Designated at national or regional level:

Type code	Site name	Type	Cover [%]
BG06	Ribarnitzi Orsoya	+	5.33

5.3 Site designation (optional)

This is the most important site in Bulgaria for the habitat 2340 - inland dunes. There is a big diversity of habitats, plants and animals (especially birds), which are with nature-conservation importance. The site is Important Bird Area.

6. SITE MANAGEMENT

6.1 Body(ies) responsible for the site management:

Organisation:	Regional Inspectorate of Environment and Water: Montana
Address:
Email:

6.2 Management Plan(s):

An actual management plan does exist:

	Yes
	No, but in preparation
X	No

6.3 Conservation measures (optional)

Restoration of the natural alluvial forests. Stopping of the illegal excavations on the dunes. Restoration of part from the former marshes on the place of the breeding-ponds.

7. MAP OF THE SITE

Map delivered as PDF in electronic format (optional)

Yes

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