Biodiversity homemade?! – <i>Clausilia dubia</i> and its various subspecies. Jaksch, K., Kruckenhauser, L., Sattmann, H., Duda, M., Harl, J., & Haring, E. In Johnsbach, Austria, August, 2014. abstract bibtex Clausilids are one of the most species-rich groups among land snails. In Austria they are very abundant in the alpine region inhabiting different habitats. In this study we investigate Clausilia dubia Draparnaud 1805, a species which displays a broad variability in its morphology, and hence several subspecies were described. The subspecies classification was reassessed by morphological analyses (various shell characters) and for the first time by molecular analyses (partial sequences of the mitochondrial gene for COI). In Austria 17 subspecies of C. dubia are described, 13 of them occur in the investigated area of the Northern Calcareous Alps of eastern Austria. The individual distribution areas of these subspecies often overlap and some of them are occurring even syntopically. The aim of our study was to evaluate whether the described subspecies are genetically and/or morphologically differentiated. Moreover we wanted to find out whether the morphological and the genetic results are in accordance. The determination of the subspecies proved to be difficult, but there are some subtle character combinations, which allowed distinguishing them. For an easier classification the subspecies were merged into four morphogroups. However, neither with the morphometric, nor with the molecular results a separation of any of the described subspecies or morphogroups was supported. Hence, the validity of the described subspecies appears doubtful.
@inproceedings{jaksch_biodiversity_2014,
address = {Johnsbach, Austria},
title = {Biodiversity homemade?! – \textit{{Clausilia} dubia} and its various subspecies},
abstract = {Clausilids are one of the most species-rich groups among land snails. In Austria they are very abundant in the alpine region inhabiting different habitats. In this study we investigate Clausilia dubia Draparnaud 1805, a species which displays a broad variability in its morphology, and hence several subspecies were described. The subspecies classification was reassessed by morphological analyses (various shell characters) and for the first time by molecular analyses (partial sequences of the mitochondrial gene for COI). In Austria 17 subspecies of C. dubia are described, 13 of them occur in the investigated area of the Northern Calcareous Alps of eastern Austria. The individual distribution areas of these subspecies often overlap and some of them are occurring even syntopically.
The aim of our study was to evaluate whether the described subspecies are genetically and/or morphologically differentiated. Moreover we wanted to find out whether the morphological and the genetic results are in accordance. The determination of the subspecies proved to be difficult, but there are some subtle character combinations, which allowed distinguishing them. For an easier classification the subspecies were merged into four morphogroups. However, neither with the morphometric, nor with the molecular results a separation of any of the described subspecies or morphogroups was supported. Hence, the validity of the described subspecies appears doubtful.},
language = {English},
author = {Jaksch, Katharina and Kruckenhauser, Luise and Sattmann, Helmut and Duda, Michael and Harl, Josef and Haring, Elisabeth},
month = aug,
year = {2014},
keywords = {Clausilia},
}
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The subspecies classification was reassessed by morphological analyses (various shell characters) and for the first time by molecular analyses (partial sequences of the mitochondrial gene for COI). In Austria 17 subspecies of C. dubia are described, 13 of them occur in the investigated area of the Northern Calcareous Alps of eastern Austria. The individual distribution areas of these subspecies often overlap and some of them are occurring even syntopically. The aim of our study was to evaluate whether the described subspecies are genetically and/or morphologically differentiated. Moreover we wanted to find out whether the morphological and the genetic results are in accordance. The determination of the subspecies proved to be difficult, but there are some subtle character combinations, which allowed distinguishing them. For an easier classification the subspecies were merged into four morphogroups. 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In Austria they are very abundant in the alpine region inhabiting different habitats. In this study we investigate Clausilia dubia Draparnaud 1805, a species which displays a broad variability in its morphology, and hence several subspecies were described. The subspecies classification was reassessed by morphological analyses (various shell characters) and for the first time by molecular analyses (partial sequences of the mitochondrial gene for COI). In Austria 17 subspecies of C. dubia are described, 13 of them occur in the investigated area of the Northern Calcareous Alps of eastern Austria. The individual distribution areas of these subspecies often overlap and some of them are occurring even syntopically.\nThe aim of our study was to evaluate whether the described subspecies are genetically and/or morphologically differentiated. Moreover we wanted to find out whether the morphological and the genetic results are in accordance. The determination of the subspecies proved to be difficult, but there are some subtle character combinations, which allowed distinguishing them. For an easier classification the subspecies were merged into four morphogroups. However, neither with the morphometric, nor with the molecular results a separation of any of the described subspecies or morphogroups was supported. 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