World Congress of Malacology Antwerp ... - Unitas Malacologica

Contrasting distribution patterns of microsnails and macrogastropods of forest in Tenerife,
Canary Islands
Kappes, Heike 1 ; Ibáñez, Miguel²; Alonso, Maria R. 3
1. University of Cologne, Institute for Zoology, Dept. Terrestrial Ecology, D-50923 Cologne,
Germany,
Email: heike.kappes@uni-koeln.de
2. University La Laguna, Faculty of Biology, Dept. for Zoology, La Laguna Tenerife 38206, Spain,
Email: mibanez@ull.es
3. University La Laguna, Faculty of Biology, Dept. for Zoology, La Laguna Tenerife 38206, Spain,
Email: malonso@ull.es
The snail fauna of the Canary Islands is characterized by a high number of highly endemic species
that may even be restricted to a small area within a single island. Thus, it may be expected that the
islands show a distance-related faunal gradient. We studied the gastropod fauna from the forests of
Tenerife, Canary Islands. Sampling was performed in a total of 27 sites in the “Monteverde” (laurel
forest) zone up to the lower “Pinar” (pine forest) zone of the regions Anaga, Orotava valley (W and
SE), Teno, and Güimar. At each site, we took eight parallels covering a total of 0.5m². The analyses
revealed some major faunal divergence between two larger areas (comprising two and three regions
each), but also some additional differences between single regions. Many differences between the
single regions were significant only if the microsnails (< 5mm shell size) were included. The
exclusion of the microsnails enhanced the expected picture of a distance-related faunal gradient at
least for the monteverde of the northern slope. We conclude that microsnails that have higher
population densities than macrogastropods also have a higher dispersal probability than the latter
group. As a result, microsnails seem to be indicators of recent environmental conditions, whereas the
occurrence of many of the macrogastropods may be related to historical refuges.
Mapping the biodiversity of land snails in Turkey: A preliminary study of hotspot analysis
Kebapçı, Ümit 1 ; Yıldırım, M. Zeki 2
1. Suleyman Demirel University, Faculty of Science and Literature, Isparta, Turkey,
Email: kebapci@fef.sdu.edu.tr
2. M. Akif Ersoy University, Faculty of Education, Burdur, Turkey,
Email: mzekiyildirim@gmail.com
Although incomplete, malacofauna of Turkey has been studied since 1700s and the current data can
be used for generalizations on the fauna. According to the literature and our studies, 20 families and
593 species of land snails and slugs represented with significant subspecific divergence (totally 707
taxa) in some families (like Clausiliidae) occur in Turkey. In the present study, in which the taxa
were taken as units, current data on the distributions of land snails in Turkey were evaluated from the
aspects of endemism, chorotype, species richness and biodiversity. Also, the factors affecting the
richness and vulnerability were also discussed.
Analysis of the 3’ untranslated regions of α-tubulin and S-crystallin mRNA and identification
of CPEB in dark- and light-adapted octopus retinas
Kelly, Shannon; Robles, Laura
California State University, Dominguez Hills, Department of Biology,
Carson, CA 90747 USA,
Email: skelly@csudh.edu; lrobles@csudh.edu
We have previously reported the differential expression and translation of S-crystallin and α-tubulin
mRNAs and protein in dark- and light-adapted octopus retinas. Real-time PCR analysis of light-
112