Message - 7th IAL Symposium

The 7 th International Association for Lichenology Symposium 2012
(2B-P13) Submission ID: IAL0004-00002
THE IMPACT OF FOREST MANAGEMENT ON CHANGES IN COMPOSITION
OF TERRICOLOUS LICHENS
Dingová A. 1 , Valachovič M. 1 , Pišút I. 2 , Senko D. 1 , Šibík J. 1
1 Department of Geobotany, Institute of Botany, Bratislava, Slovakia
2 Department of Lower Plants, Institute of Botany, Bratislava, Slovakia
The study focused on the dry acidophilous Scots pine forests with rich lichen and mosses layer in
Borská nížina lowland (SW Slovakia) comparing to the Bory Tucholskie (NW Poland). There so-called lichen
and moss forests Dicrano-Pinion (Libbert 1933) Matuszkiewicz 1962 are present, famous for their biodiversity of
lower plants flora (cryptogams). Between years 2006 and 2011 each type of vegetation was studied by 1 large
phytosociological sample (400 m 2 ) and 10 micro-samples (0.25 m 2 ) made on 35 localities. Vegetation types were
divided based on their decline of management impact. The first type of secondary vegetation called Pleurozio
schreberii-Pinetum (Slovakia) in managed forests with 140 micro-samples was observed. On the second
type of secondary vegetation called Cladonio-Pinetum (Slovakia) stands 110 micro-samples were studied in
protected forests, where forest management was limited. The third type was natural typological Cladonio-
Pinetum Juraszek 1928 forests in Bory Tucholskie National park (Poland) where 100 micro-samples were used
for comparison. Using the TWINSPAN, CANOCO (CCA, DCA), JUICE and Ecological values of lichens for
analysing the data, the results show that forestry has a considerable negative effect on diversity and synusias
of lichens. Diversity of lichens in different forests was as follows: 15 species in managed, 25 in protected and
28 in natural forests. The highest number of lichens which are tolerant to anthropogenic impact are in managed
forests as well as those are able to colonize soil with the higher pH, thicker A0 and humus layers. Thermophilous
taxa occur mainly in natural and protected forests. There were mostly species which are characteristic for climax
and stable communities.
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