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Lammers, Youri; Clarke, Charlotte L.; Erséus, Christer; Brown, Antony G.; Edwards, Mary E.; Gielly, Ludovic; Haflidason, Haflidi; Mangerud, Jan; Rota, Emilia; Svendsen, John Inge; Alsos, Inger Greve

Clitellate worms (Annelida) in lateglacial and Holocene sedimentary DNA records from the Polar Urals and northern Norway

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  • Medientyp: E-Artikel
  • Titel: Clitellate worms (Annelida) in lateglacial and Holocene sedimentary DNA records from the Polar Urals and northern Norway
  • Beteiligte: Lammers, Youri; Clarke, Charlotte L.; Erséus, Christer; Brown, Antony G.; Edwards, Mary E.; Gielly, Ludovic; Haflidason, Haflidi; Mangerud, Jan; Rota, Emilia; Svendsen, John Inge; Alsos, Inger Greve
  • Erschienen: Wiley, 2019
  • Erschienen in: Boreas
  • Sprache: Englisch
  • DOI: 10.1111/bor.12363
  • ISSN: 0300-9483; 1502-3885
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:p>While there are extensive macro‐ and microfossil records of a range of plants and animals from the Quaternary, earthworms and their close relatives amongst annelids are not preserved as fossils and therefore the knowledge of their past distributions is limited. This lack of fossils means that clitellate worms (Annelida) are currently underused in palaeoecological research, even though they can provide valuable information about terrestrial and aquatic environmental conditions. Their <jats:styled-content style="fixed-case">DNA</jats:styled-content> might be preserved in sediments, which offers an alternative method for detection. Here we analyse lacustrine sediments from lakes in the Polar Urals, Arctic Russia, covering the period 24 000–1300 cal. a <jats:styled-content style="fixed-case">BP</jats:styled-content>, and <jats:styled-content style="fixed-case">NE</jats:styled-content> Norway, covering 10 700–3300 cal. a <jats:styled-content style="fixed-case">BP</jats:styled-content>, using a universal mammal 16S <jats:styled-content style="fixed-case">rDNA</jats:styled-content> marker. While mammals were recorded using the marker (reindeer was detected twice in the Polar Urals core at 23 000 and 14 000 cal. a <jats:styled-content style="fixed-case">BP</jats:styled-content>, and four times in the Norwegian core at 11 000 cal. a <jats:styled-content style="fixed-case">BP</jats:styled-content> and between 3600–3300 cal. a <jats:styled-content style="fixed-case">BP</jats:styled-content>), worm extracellular <jats:styled-content style="fixed-case">DNA</jats:styled-content> ‘bycatch’ was rather high. In this paper we present the first reported worm detection from ancient <jats:styled-content style="fixed-case">DNA</jats:styled-content>. Our results demonstrate that both aquatic and terrestrial clitellates can be identified in late‐Quaternary lacustrine sediments, and the ecological information retrievable from this group warrants further research with a more targeted approach.</jats:p>