acta societatis botanicorum poloniae - LV Zjazd Polskiego ...

PLANT COVEr OF SEGMENTS OF THE BYdGOSZCZ
CANAL BE SUBOrdINATING dIFFErENTIAL AN-
TrOPOGENIC
Waldon Barbara, Hoffmann renata, Ratyńska Halina. Kazimierz
Wielki University, Institute of Environmental Biology,
12 Ossolińskich St., 85-093 Bydgoszcz, Poland, waldon@ukw.
edu.pl, renata_hoffmann@O2.pl, harat@ukw.edu.pl
The Bydgoszcz Canal join Noteć with Brda River and indirectly
also Odra with Vistula River. Construction began in 1773 and
then it was modernized many times. At present the Bydgoszcz
Canal is 34 kilometres long and is an important element of hydrological
network in the region.The Bydgoszcz Canal does not,
however, perform an essential function as a water route. Its aesthetic
value is of great importance and it is the plant cover that
creates its aesthetic value. The Bydgoszcz Canal and its margins
are characterized by rich flora and plant communities. 279 species
of vascular plants and 75 plant communities have been
identified. The flow cuts through the urbanized zone in Bydgoszcz
and the agricultural landscape. Depending on the degree of
transformation of the immediate surroundings of the Bydgoszcz
Canal, both quantitative and qualitative composition is changing.
The poorest floristically is the most transformed and urban
segment but the richest is the meadow landscape part. Number
of taxa is bigger on margins (250) than in the Bydgoszcz Canal
(40). In every part of the Bydgoszcz Canal the native species
of plants dominate. Lots of kenophytes have been found in all
flow, only in urban zone archaeophytes are in large numbers.
Similar observations relate to the plant communities. Number of
syntaxa is much bigger on flow margins. In the Bydgoszcz Canal,
the natural communities, mainly auxochoric, are the most
frequently observed.
COMPArISON OF VEGETATION IN FOrEST PONdS
LoCAtED IN tHE GoLENIóW foRESt AND LAKE-
LANd KrAJENSKIE
Waldon Barbara 1 , Raniszewska Małgorzata 2 . 1 Kazimierz
Wielki University, Department of Botany, 30 Chodkiewicza St.,
85-064 Bydgoszcz, Poland, waldon@ukw.edu.pl; 2 Westpomeranian
University of Technology in Szczecin, 17 Słowackiego St.,
71-434 Szczecin, Poland, malgorzata_raniszewska@yahoo.de
Ponds located in forested areas are characterized by low abundance
of flora and plant communities, compared to the tanks
located in rural areas. This is due, inter alia, to the specific conditions
of light and the strong isolation of the ponds in relation
to areas which undergo heavy change. Among the forest ponds
the highest species richness and diversity of plant communities
are the ponds in pine woods. In the agricultural landscape of
Lakeland Krajenski, forests occupy only 17% of the area and
are concentrated in the central part of the region. These are
mainly small fragments of forest surface habitats with swamp
forests, alder, ash-alder and elm-ash. Only in the north-west of
Lakeland Krajenski are there oak and beech forests. Goleniów
Forest is a forest complex located in Goleniowska Plain, where
forests cover almost 60% of the surface. The studies included
the southern part of 487.47 km 2 , located in a watershed between
two rivers: Płonia (south-west) and Ina (from the north and east).
The majority of the habitat are pine woods, but an oak forest is
situated peripherally (to the east) and beech forest (on the south).
The aim of this study is to compare the vegetation of forest water
reservoirs which are located in separate and different geobotanical
regions, with the history of the different land uses.
Geobotany and Plant Cover Conservation
MOUNTAIN PLANT MIGrATIONS IN CENTrAL EUrOPE
ON THE ExAMPLE OF PHYLOGEOGrAPHIC
STUdIES ON ArAbidoPsis hAlleri
Wąsowicz Paweł1 , Pauwels Maxime2 , Rostański Adam1 ,
Saumitou-Laprade Pierre2 . 1University of Silesia, Faculty of
Biology and Environmental Protection, Department of Plant
Systematics, 28 Jagiellońska St., 40-032 Katowice, Poland,
pawasowicz@gmail.com; 2Université des Sciences et Technologies
de Lille, Laboratoire de Génétique et Evolution des Populations
Végétales, 59655 Villeneuve d’Ascq, France
Arabidopsis halleri is a Central European mountain species
occurring in Alps, Carpathians, Sudetes and Harz Mountains.
Several studies were carried out in recent years in order to gain
a better understanding of the phylogeographic patterns of the
species. Results of these studies have shown that the natural
range of A. halleri is geographically structured. But the studies
have not enabled us to formulate detailed hypotheses on A. halleri
postglacial migration routes in Central Europe. We carried
out research on populations located in Sudetes, Southern Germany,
and Carpathians in order to establish A. halleri migration
routes within this area and to locate possible glacial refugia
of the species. In our study we used three non-coding regions
of cpDNA: the trnK intron (trnK1-trnK2), and two intergenic
regions (trnC–trnD and psbC–trnS) as well as ten nuclear microsatellite
loci. Results have shown that the Central European
range of A. halleri is structured in four major groups. Our
results revealed three main routes of postglacial expansion in
Central Europe. We have also located possible glacial refugia
for the species.
cArex flAvA COMPLEx IN POLANd. PrELIMINArY
rESULTS
Więcław Helena. University of Szczecin, Department of Plant
Taxonomy and Phytogeography, 13 Wąska St, 71-415 Szczecin,
Poland, wieclawh@univ.szczecin.pl
Among European sedges, the Carex flava complex is one of
the most critical, with many vaguely defined taxa. Delimitation
of segregates is difficult and ambiguous due to the observed
morphological variability and frequent hybridization.
Only C. flava is a morphologically well-defined taxon. It is
usually easily recognized. The classification of C. lepidocarpa,
C. demissa and C. oederi into the category of species or
subspecies is still under discussion. The study was conducted
on the living and herbarium specimens (BNPH, BYDG,
DRAPN, KRFB, KTC, KTU, LBLM, OLTC, OPOL, PBMA,
POZ, SPNH, UGDA, WA, ZAMU) from Poland. Initially 50
morphological characters were estimated for 1500 fruiting
specimens. The most important characters differentiating the
taxa concern the inflorescences: the number and placement of
spikes, the size of the perigynium and its beak, and the size of
the bract. Initially 7 taxa were distinguished; 3 at the species
level, 2 at the subspecies level, and 2 hybrid taxa. Phytosociological
and habitat preferences of the members of ther C.
flava group were characterized. Comments on nomenclature
and taxonomy were given. A key to the determination of taxa
on the basis of detailed descriptions of morphology, was proposed.
Acknowledgments. I thank the curators for providing
herbarium sheets of the Carex flava complex.
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