World Congress of Malacology Antwerp ... - Unitas Malacologica

protoconch has non-planctotrophic characteristics suggesting an almost direct larvae development
and thus limited dispersal abilities.
Our study rests on intensively sampling carried out by IRD in the EEZ of New Caledonia to study the
fauna of the seamount situated on the Norfolk ridge and on the Lord Howe Rise. In this study area,
Sassia genus is composed by only one species, whose geographic distribution is large, and where the
haplotypes are closely related, disclosing a high potential of dispersal capacity. On the contrary, the
genus Nassaria sampled in EEZ of New Caledonia is composed by several potential species with
various levels of genetic structure, going to large distribution geographic up to potential endemism
which is localized on continental slope rather than seamount.
A brief insight into the species-area relationships of spring fen mollusc communities
Cernohorsky, Nicole; Horsák, Michal
Department of Botany and Zoology, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic,
Email: nicole4c@seznam.cz; horsak@sci.muni.cz
The relationship between the number of mollusc species and area was studied at 25 spring fen sites in
the Western Carpathian Mts. A set of three nested quadrates was sampled at each site (differing in
their mineral richness) as well as a 12 litre sample in the area of 16 m 2 to obtain information about
the site’s species pool. Principal differences in the numbers of species (and individuals) when
considering all molluscs or only live molluscs were found. Differences were also found among sites
of different mineral richness. In the mineral poor fen sites the smallest plot, sized (25 cm) 2 , captured
a significantly smaller part of the site's species richness than in the mineral-rich, and tufa forming fen
sites, likely due to lower abundances and higher heterogeneity of mineral poor fens. Due to this the
species-area curve was steep for mineral-poor sites (especially from the (25 cm) 2 plot to the (50 cm)
2 plot) and became shallower towards the mineral-richer fens. However in all the sites, regardless of
the mineral type, the largest, (75 cm) 2 , plot captured over 80 % of the site's richness (only 2-3
species short of the total for the whole site). This demonstrates that the (75 cm) 2 sampling plot
reflects the site's species richness very well.
Gastropods of Davraz Mountain
Ceylan, Salih 1 ; Kebapçı, Ümit 2 ; Yıldırım, M. Zeki 1 ; Gümüş, Burçin Aşkım 3
1. M. Akif Ersoy University, Faculty of Education, Burdur, Turkey,
Email: sceylan@mehmetakif.edu.tr; mzekiyildirim@gmail.com
2. Suleyman Demirel University, Faculty of Science and Literature, Isparta, Turkey,
Email: kebapci@fef.sdu.edu.tr
3. M. Akif Ersoy University, Health Science College, Burdur, Turkey,
Email: burcinaskim@gmail.com
Davraz Mountain (2200m), one of the most spectacular heights in Southwest Turkey, became an
important ski center due to suitability of the topography and precipitation. Study has been carried on
at heights enabling climbing above 1300 m on north and northeast (between 2003 and 2005); and on
south and southeast (in 2007) directions with 13 stations established.
Conclusively, the following 14 land snails (7 endemics) are found to be distributed on the mountain:
Pyramidula rupestris, Sphyradium doliolum, Jaminia loewii loewii, Chondrula lycaonica, Zonites
megistus, Vitrea ernesti, Oxychilus cyprius, Gallandia annularis, Deroceras berytensis, Sprattia
beycola medoroides, Metafruticicola oerstani, Xeropicta derbentina, Cernuella virgata, and Helix
dickhauti.
In the light of vegetation and geographical features, malacofauna of the mountain was discussed and
compared with those of the neighboring areas.
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