Orcula

Two specimens of Orcula pseudodolium “kissing”. The photo was made in the species’ type locality, the Sengsengebirge of the National Park Kalkalpen.

Communication: Josef Harl

The project treats the phylogeography of the landsnail genus Orcula Held, 1837 and its relation to other genera of the family Orculidae. The genus Orcula consists of 13 currently known species. All representatives are more or less restricted to limestone areas of the Alps, the Carpathians, and the Dinarids. The species’ distribution in the Alps is strongly influenced by the last glaciation as large parts of the present distribution area were covered by ice. Our data shall help to understand distribution and migration patterns and to reveal possible refugial areas. We started our investigation with a compilation of all available types of the genus to get a good overview, regarding taxonomical status, availability of names, and information about type specimens and type localities (Harl et al. 2011). We then focused on the species Orcula dolium which stands out to some extent as it is the only species within the genus that inhabits the Alps and the Carpathians. The investigations are based on a large sample, covering the main distribution. We conducted morphometric analyses including the shells of 1600 specimens and set up a phylogenetic analysis based on two mitochondrial marker sequences (Cytochrome Coxidase subunit I and 16S rRNA) and sequences of the nuclear H3H4 – histone complex. Within O. dolium, several quite distinct mitochondrial clades can be distinguished. Subsequently, we will test whether these clades represent morphological entities and whether morphology can be connected with environmental influences such as altitiude. First results were presented at several scientic meetings.

Further studies will treat the remaining Alpine Orcula species for whom our preliminary data suggests that hybridisation happened probably several times. Finally, we plan to study the phylogeny of the whole genus, including also the species of the Dinarids and the Black Sea region. Our results will be published end of 2011 and 2012.

Josef Harl

Josef Harl

Natural History Museum of Vienna, Central Research Laboratories

Email: josef.harl@nhm-wien.ac.at

Read more about Josef Harl

Publications on Orcula

Thesis

Harl, J. (2015). Phylogeography and taxonomy of the land snail genus Orcula Held, 1837 (Dissertation). University of Vienna, Vienna. Cite

Journal Articles

Harl, J., Páll-Gergely, B., Kirchner, S., Sattmann, H., Duda, M., Kruckenhauser, L., & Haring, E. (2014). Phylogeography of the land snail genus Orcula (Orculidae, Stylommatophora) with emphasis on the Eastern Alpine taxa: speciation, hybridization and morphological variation. BMC Evolutionary Biology, 14(1), 223. https://doi.org/10.1186/s12862-014-0223-y Cite
Harl, J., Sattmann, H., & Schileyko, A. (2011). Types of the extant taxa of the landsnail genus Orcula Held 1837 (Gastropoda: Stylommatophora: Orculidae). Archiv für Molluskenkunde: International Journal of Malacology, 140(2), 175–199. https://doi.org/10.1127/arch.moll/1869-0963/140/175-199 Cite
Harl, J., Duda, M., Kruckenhauser, L., Sattmann, H., & Haring, E. (2014). In Search of Glacial Refuges of the Land Snail Orcula dolium (Pulmonata, Orculidae) - An Integrative Approach Using DNA Sequence and Fossil Data. PLoS ONE, 9(5), e96012. https://doi.org/10.1371/journal.pone.0096012 Cite
Jaksch, K., Eschner, A., Rintelen, T. V., & Haring, E. (2016). DNA analysis of molluscs from a museum wet collection: a comparison of different extraction methods. BMC Research Notes, 9, 348. https://doi.org/10.1186/s13104-016-2147-7 Cite
Jaksch, K., Kruckenhauser, L., Haring, E., & Fehér, Z. (2017). First establishment of microsatellite markers in clausiliid snails (Mollusca: Gastropoda: Clausiliidae). BMC Research Notes, 10, 137. https://doi.org/10.1186/s13104-017-2462-7 Cite
Kirchner, S., Harl, J., Kruckenhauser, L., Duda, M., Sattmann, H., & Haring, E. (2016). Phylogeography and systematics of Pyramidula (Pulmonata: Pyramidulidae) in the eastern Alps: still a taxonomic challenge. Journal of Molluscan Studies, 82(1), 110–121. https://doi.org/10.1093/mollus/eyv047 Cite

Abstracts

Harl, J., Kruckenhauser, L., Sattmann, H., Duda, M., & Haring, E. (2011). The evolution of Orcula dolium (Gastropoda: Pulmonata: Orculidae) in the Alps and Carpathians. How the impact of the Pleistocene glaciations shaped a snail species’ distribution. Talk presented at the Exkursionsworkshop Alpine Landschnecken, Johnsbach, Austria.
Harl, J., Kruckenhauser, L., Sattmann, H., Duda, M., & Haring, E. (2010). Phylogeography of the East-Alpine members of the landsnail species Orcula dolium (Gastropoda: Pulmonata: Orculidae). Poster presented at the NOBIS Austria Meeting, Graz (Austria).
Harl, J., Kruckenhauser, L., Sattmann, H., Duda, M., & Haring, E. (2010). Phylogeography of the East-Alpine members of the landsnail species Orcula dolium (Gastropoda: Pulmonata: Orculidae. World Congress of Malacology. Poster presented at the World Congress of Malacology, Phuket (Thailand).
Harl, J., Duda, M., Haring, E., Sattmann, H., & Kruckenhauser, L. (2009). Genetic variation in East Alpine members of the genus Orcula (Held 1837). Poster presented at the 102nd Conference of the German Zoological Society, Regensburg (Germany).
Harl, J., Duda, M., Haring, E., Sattmann, H., & Kruckenhauser, L. (2009). Phylogeography of the genus Orcula (Held 1837) in the Eastern Alps. Poster presented at the Annual Meeting of the GfBS, Leiden (The Netherlands).
Harl, J., Páll-Gergely, B., Duda, M., Kruckenhauser, L., Sattmann, H., & Haring, E. (2013). Phylogeography of the land snail genus Orcula Held 1837 with a special focus on the Alpine species group. Presented at the BioSyst EU 2013, Vienna, Austria.
Harl, J., Páll-Gergely, B., Duda, M., Kruckenhauser, L., Sattmann, H., & Haring, E. (2013). Phylogeography of the land snail genus Orcula Held 1837 with a special focus on the Alpine species group. Presented at the World Congress of Malacology, Ponta Delgada, Azores (Portugal).

Pin It on Pinterest

Share This