Book of Abstracts (PDF) - International Mycological Association

IMC7 Main Congress Theme I: BIODIVERSITY AND CONSERVATION Posters
fungi are hitherto recorded from this region. More than 400
lichen species (namely 410) is known from Ukrainian
Volcan Carpathians. From 300 to 400 lichen species is
recorded from the following areas: Low Bieszczady, High
Bieszczady, Chornohora, Chyvchyn-Grynyavsky Mts. and
Marmarosh Mts. More than 200 lichen species (and less of
300) is known from Bukovsky Vrchy Mts., Gorgany and
Svidovetz Mts. Similarity and differences of the species
content of lichens of national and geomorphologic regions
of the Eastern Carpathian Mts. region are discussed and
illustrated.
535 - Epiphytic lichens in Dushanbe
I. Kudratov
Tajik State National University, Rudaki str. 17, 252025
Dushanbe, Tajikistan. - E-mail: botanica@ac.tajik.net
Dushanbe, the capital of the Tajik Republik, is located in
the Hissar Valley at a height of 800-900 meters above sea
level. Dushanbe's climate is sharp continental. The average
temperature in January is +1 °C and in July +28 °C.
Epiphytic lichens in Dushanbe and its vicinity were
investigated in 1997-1998 to learn study their role as air
pollution indicators. Species composition of the epiphytic
lichens on Platanus orientalis, Acer negundo, Pinus
eldaricus was studied and the distribution of certain lichen
examined. A list of lichens contains 15 species. On the
ground of received data three zones of air pollution were
delineated in Dushanbe. Most polluted zone (1) follows the
distribution of Lecanora hagenii, Phaeophyscia orbicularis
and Anaptychia ulotricoides etc. This (1) zone includes the
separate sites along the main motor roads of the city. They
are the sites with permanent intensive pollution. The zone
of intermediate pollution (11) was delineated according to
distribution of Lecanora hagenii, Phaeophyscia
orbicularis, Anaptychia ulotricoides, Candelariella
aurella. The third zone is located in the north-eastern
outskirts of Dushanbe embraces almost the whole hilly
massif. Therefore the number of epiphytic lichens species
shows a tendency of decreasing of species number along
the gradient of air pollution.
536 - The influence of forestry on wood-inhabiting
corticioid basidiomycetes in Switzerland
N. Küffer 1* , D. Job 1 , M. Aragno 1 & B. Senn-Irlet 2
1 Université de Neuchâtel, Lab. de Microbiologie, Case
Postale 2, 2007 Neuchâtel, Switzerland. - 2 Swiss Federal
Research Institute WSL, Zürcherstrasse 111, 8903
Birmensdorf, Switzerland. - E-mail:
nicolas.kuffer@unine.ch
Intensively managed forests show significantly less fruit
bodies and a lower species richness of corticioid
basiodiomycetes than forest reserves. Species richness does
not only seem to be determined by the availability of
woody debris, since also some strongly managed forests
host a remarkably high species richness. Even rather rare
species, e.g. Tubulicrinis sororius or Brevicellicium
olivascens, could be found in managed forests, whereas
they were expected to occur more likely in forest reserves.
Forests, richer in different tree species, harbour a higher
number of fungal species too, independent of their
managing history. Nevertheless, the importance of forest
reserves for the maintenance of a rich species community
of corticioid basidomycetes is clearly confirmed. In order
to address the question of diversity, abundance, host age,
decomposing process, regional factors and the influence of
modern forestry, 82 plots of 50 m 2 have been selected in
the main forest types in Switzerland. A total of 3216
branches with fruit bodies of corticioid basidiomycetes
have been harvested and thereon 233 species identified.
Among the most frequent species are Amphinema
byssoides, an important mycorrhizal partner of conifers and
Phlebiella vaga or Hyphodontia sambuci, two wooddecomposing
species. Preliminary results show a few
species dominating, the majority of the species is found
only rarily: species rank distribution is best explained with
a steep power function.
537 - Nitrogen impact on epiphytic lichens in an ancient
oak forest in Denmark
R.S. Larsen * & U. Søchting
University of Copenhagen, Botanical Institute, Dep. of
Mycology., Østre Farimagsgade 2D, 1353 Kbh.K,
Denmark. - E-mail: renesl@bot.ku.dk
The lichen vegetation was studied in Kås Skov, an ancient
oak forest in Northern Jutland, Denmark that is under
protection of EEC habitat directive because of its high
biodiversity. The very rich lichen vegetation is threatened
by ammonia and ammonium deposition from animal farms
in the region. In a floristic survey of epiphytes on tree
trunks, several old forest indicator lichens previously
recorded were not refound, however Zamenhofia hibernica
and Ramonia chrysophaea were found as new to Denmark.
Lichen vegetation from north and south side of trunks, as
well as that of north- and southfacing branches of trees
standing at the forest edge and interior, were compared.
Multivariate analysis (CCA) showed that the lichen
occurrence is more dependent on the position on the
branch, than on where the branch is situated in the forest.
Indicator Species Analysis (ISA) revealed that species
generally regarded as nitrophilous, prefer branch parts 10
to 50 cm from the tip (3-8 years), at the edge of the forest.
Contrary, thalli of Hypogymnia physodes contain 21%
more nitrogen in the sheltered part of the forest compared
to the forest edge. The high nitrogen content in
Hypogymnia physodes from Kås Skov (2.1%) is compared
at regional scale and showing that >15 kg N /ha/year is
deposited. This dose is expected to cause changes in the
epiphytic lichen flora, and the nearby lichen heathland.
Book of Abstracts 163