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)

TABLE OF CONTENTS

1. SITE IDENTIFICATION

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1.1 Type

C

1.2 Site code

SE0110167

1.3 Site name

Kvarnsjön

1.4 First Compilation date

2000-02

1.5 Update date

2012-08

1.6 Respondent:

Name/Organisation:Länsstyrelsen i Stockholms län
Address:               
Email:stockholm@lansstyrelsen.se

1.7 Site indication and designation / classification dates

Date site classified as SPA:2006-05
National legal reference of SPA designationGovernmental act M2005/6486/Na
Date site proposed as SCI:2000-07
Date site confirmed as SCI:2005-01
Date site designated as SAC:2011-03
National legal reference of SAC designation:Governmental act M2010/4648/Nm

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:18.084300
Latitude:59.194000

2.2 Area [ha]

98.7000

2.3 Marine area [%]

0.0000

2.4 Sitelength [km] (optional):


No information provided

2.5 Administrative region code and name


No information provided

2.6 Biogeographical Region(s)

Boreal (100.00 %)

3. ECOLOGICAL INFORMATION

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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
3160  info      13.2  0.00  M  A  C  A  A 
7140  info      9.6  0.00  M  A  C  A  A 
9010  info      19.8  0.00  M  B  C  B  B 
91D0  info      16.5  0.00  M  B  C  C  C 
  • 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.
BA224Caprimulgus europaeus    r        P  DD  C  B  C  B 
I1042Leucorrhinia pectoralis    p        C  DD  C  A  C  A 
BA246Lullula arborea    r        P  DD  C  B  C  B 
BA072Pernis apivorus    r        P  DD  C  B  C  B 
BA409Tetrao tetrix tetrix    p        P  DD  C  B  C  B 
  • 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)


No information provided

4. SITE DESCRIPTION

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4.1 General site character

Habitat class % Cover
N0614.00
N0711.00
N162.00
N1768.00
N223.00
N232.00

Total Habitat Cover

100

Other Site Characteristics

Kvarnsjön is a long, narrow and shallow, nutrient poor and dystrophic lake. Most of the shores are formed by outcrop of bedrock. In the extension of the tectonic valley that forms the lake there are quaking-bogs and bog woodland. The rest of the site consists of surrounding flat-rock pine forest with several smaller depressions with bog woodland.

4.2 Quality and importance

The quaking-bogs are very well developed with a representative flora. The lake have a rich fauna of dragonflies with dense populations. Surrounding forests have been subject to normal forestry. Although a large portion of the forest is non-productive land on outcrop of bedrock there have been selective cutting all over the area in old times. Forest in the immediate surrounding of the lake is mostly old-growth forest. The less interesting forests included in the site are matrix around several small depressions with bog-woodland in the water-shed of the lake.

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]
LK02.01i
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
LB02.06b

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

4.4 Ownership (optional)


No information provided

4.5 Documentation (optional)

Huddinge kommun. 1989. Naturinventering.Länsstyrelsen i Stockholms län. 1995. Våtmarksinventering i Stockholms län.Huddinge kommun. Miljö- och samhällsbyggnadsförvaltningen. 20.12.1999: Förslag till Lännaskogens naturreservat i Huddinge kommun. Remiss dnr 1998.065/826.

5. SITE PROTECTION STATUS

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5.1 Designation types at national and regional level (optional):

Code Cover [%]
SE02100.00

5.2 Relation of the described site with other sites (optional):


No information provided

5.3 Site designation (optional)

The area is subject of negotiations in purpose to establish a nature reserve.

6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:

Organisation:Huddinge kommun
Address:
Email:huddinge@huddinge.se
Organisation:Länsstyrelsen i Stockholms län
Address:
Email:stockholm@lansstyrelsen.se

6.2 Management Plan(s):

An actual management plan does exist:

X
 Yes Name: Kvarnsjön
Link: http://skyddadnatur.naturvardsverket.se/

No, but in preparation
No

6.3 Conservation measures (optional)


No information provided

 

7. MAP OF THE SITE

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INSPIRE ID:SE.SWEPA.SE0110167
Map delivered as PDF in electronic format (optional)
 Yes
X
 No

SITE DISPLAY