A vanishing hotspot—the impact of molecular insights on the diversity of Central European Bythiospeum Bourguignat, 1882 (Mollusca: Gastropoda: Truncatelloidea)

@article{Richling2016AVH,
  title={A vanishing hotspot—the impact of molecular insights on the diversity of Central European Bythiospeum Bourguignat, 1882 (Mollusca: Gastropoda: Truncatelloidea)},
  author={Ira Richling and Yaron Malkowsky and Jacqueline Kuhn and Hans-J{\"o}rg Niederh{\"o}fer and Hans D. Boeters},
  journal={Organisms Diversity \& Evolution},
  year={2016},
  volume={17},
  pages={67-85}
}
The current study investigates the Central European groundwater snails of the genus Bythiospeum which are currently regarded as highly diverse with a hotspot in south-western Germany coupled with high rates of endemism. This systematic concept combined with the fragility of their habitat results in a high rate of threatened species (76–96 %). The analyses of the mitochondrial COI fragment of nearly 200 specimens from 35 localities in Germany, Switzerland and marginally Austria and France… 
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References

SHOWING 1-10 OF 171 REFERENCES
Living on the mountains: patterns and causes of diversification in the springsnail subgenus Pseudamnicola (Corrosella) (Mollusca: Caenogastropoda: Hydrobiidae).
Effects of habitat transition on the evolutionary patterns of the microgastropod genus Pseudamnicola (Mollusca, Hydrobiidae)
TLDR
The genus Pseudamnicola should be divided into three genera: the two previous subgenera plus a new one described here, as postulated, the evolution of the spring organisms was strongly related to habitat fragmentation and isolation, whereas dispersal followed by divergence seem to have been the most common speciation processes for euryhaline species inhabiting coastal streams and low river stages.
Phylogeography of the land snail genus Orcula (Orculidae, Stylommatophora) with emphasis on the Eastern Alpine taxa: speciation, hybridization and morphological variation
TLDR
The present study confirms the importance of the Alps as biodiversity hotspot and origin center of land snail diversity and the species diversity in the subgenus Orcula was likely promoted by Miocene to Pliocene palaeogeographic events and the insular distribution of preferred limestone areas.
Species Delimitation In The Genus Bythinella (Mollusca: Caenogastropoda: Rissooidea): A First Attempt Combining Molecular And Morphometrical Data
TLDR
The number of species of Bythinella recognized in the Pyrenees appears probably overestimated, and the characters traditionally used for species delimitation should be re-evaluated.
Molecular systematics of Hydrobiidae (Mollusca: Gastropoda: Rissooidea): testing monophyly and phylogenetic relationships
TLDR
The cluster patterns in the combined 18S + COI tree as well as in the individual 18S and COI trees show that the Hydrobiidae of Kabat and Hershler (1993) are polyphyletic, which confirms previous studies suggesting that the Cochliopidae are a family distinct from the hydrobiidae.
A molecular test for cryptic diversity in ground water: how large are the ranges of macro-stygobionts?
TLDR
Data suggest that small ranges of macro-stygobionts are the rule, and ranges over 200 km are extremely rare, and a considerable increase in overall diversity at the regional and continental scale and a strong decrease in faunal similarities among regions, coupled with greater endemism.
Phylogenetic relationships within the aquatic snail genus Tryonia: implications for biogeography of the North American Southwest.
TLDR
Maximum parsimony analysis of a 601-base-pair sequence from the mitochondrial COI gene did not support monophyly of the genus Tryonia nor its subgenus Paupertryonia, but a clade composed of the type species of Tryonia and 16 congeners was strongly supported by the COI data and congruent with recently discovered variation in female genitalic morphology.
When snails inform about geology: Pliocene emergence of islands of Vanuatu indicated by a radiation of truncatelloidean freshwater gastropods (Caenogastropoda: Tateidae)
TLDR
A time-calibrated phylogenetic analysis of freshwater gastropods of the family Tateidae based on COI, 16S rRNA and ITS2 suggested that Espiritu Santo was probably the place of origin for the subsequent colonization of the island of Erromango and the Pleistocene radiation across the remaining archipelago.
Genetic divergence, population structure and historical demography of rare springsnails (Pyrgulopsis) in the lower Colorado River basin
  • C. Hurt
  • Environmental Science
    Molecular ecology
  • 2004
TLDR
High levels of interspecific sequence divergence indicate that Pyrgulopsis may have colonized this region multiple times beginning in the late Miocene (~6 Ma); earlier than previous estimates based on fossil evidence.
...
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