Datensatz

Glacial and postglacial species divergence and dispersal of European trickle midges (Diptera: Thaumaleidae)

Pleistocene glaciations have greatly influenced the current distribution and diversity of aquatic and terrestrial species in Europe. We studied the phylogeography and the genetic structure of European trickle midges (Diptera: Thaumaleidae). This family is restricted to hygropetric zones with the genera Thaumalea, Protothaumalea and Androposopa occuring in Europe, including both microendemisms and species widely distributed across the continent. A 658-bp fragment of the mitochondrial CO1 and a 563-bp fragment of the nuclear Wingless-gene from 56 individuals belonging to 14 species were sequenced and analyzed. Androposopa is monophyletic and sister group to a broad Thaumalea clade which includes Protothaumalea. All species for which multiple populations were available are monophyletic, while the previously suggested hypothesis of species groups within Thaumalea is not supported. To understand the influence of glacial dynamics on Thaumaleidae evolution, we investigate four different scenarios for species divergences, testing different periods for within-species population splits. The results suggest different evolutionary histories for different species. For Thaumalea testacea, we found evidence for survival in multiple Alpine refugia throughout the glacial maxima. On the other hand, T. bezzii seems to have dispersed into Central Europe from the East Mediterranean area after the last glaciation. For the Faroe Islands populations of T. veralli, dispersal could have happened by air currents from Europe rather than by anthropogenic transport. Overall, our results show a wide range of dispersal patterns within an otherwise uniform group of organisms, opening new avenues for further studies in phylogeography and speciation.

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Publisher
Nationalparks Austria
Category
Umwelt
Tags
Biologie Nationalparks Austria Naturschutz OpenDocument Schutzgebiet
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Metadata Modified
November 7, 2022, 14:54 (MEZ)

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Verantwortlicher	NP Gesaeuse
Maintainer Link	http://www.parcs.at/npg/contact.php
Publisher	Nationalparks Austria
Metadata Link	http://www.parcs.at/npg/mmd_fullentry.php?docu_id=37039
Beginning Date/Time	Januar 1, 2016, 01:00 (MEZ)
ID	D979923F-5DD1-528C-2088-3A133B6331A9
Human readable URL	https://www.data.gv.at/katalog/de/dataset/glacial-and-postglacial-species-divergence-and-dispersal-of-european-trickle-midges-diptera-tha

Glacial and postglacial species divergence and dispersal of European trickle midges (Diptera: Thaumaleidae) Herunterladen

Details

Feld	Wert
Metadaten zuletzt aktualisiert	7. November 2022
Data Format	PDF
Data Identifier	449f80e4-9e87-4e81-8ca7-9159597484e7
Metadata Identifier	D979923F-5DD1-528C-2088-3A133B6331A9
Data URL	http://www.senckenberg.de/arthropod-systematics

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