Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics
Arctic phytoplankton is the base of the foodweb in the most rapidly changing region on the planet. Within this thesis I show that Arctic coastal diatom communities can sustain stable productivity under future climate scenarios by several mechanisms: though large phenotypic plasticity, sorting betwee...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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Universität Bremen
2019
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Online Access: | https://media.suub.uni-bremen.de/handle/elib/1591 https://nbn-resolving.org/urn:nbn:de:gbv:46-00107155-14 |
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/1591 2023-05-15T14:48:10+02:00 Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics Anpassungspotential der arktischen Diatomee Thalassiosira hyalina an den Klimawandel : Intraspezifische Diversität, Plastizität und Populationsdynamik Wolf, Klara Katharina Estrella Rost, Björn Bischof, Kai 2019-03-25 application/pdf https://media.suub.uni-bremen.de/handle/elib/1591 https://nbn-resolving.org/urn:nbn:de:gbv:46-00107155-14 eng eng Universität Bremen FB2 Biologie/Chemie https://media.suub.uni-bremen.de/handle/elib/1591 urn:nbn:de:gbv:46-00107155-14 info:eu-repo/semantics/openAccess Arctic climate change microalgae diatom adaptation intraspecific diversity phenotypic plasticity strain sorting selection dynamics genotypic interactions artificial population ocean acidification warming multiple stressors 570 570 Life sciences biology ddc:570 Dissertation doctoralThesis 2019 ftsubbremen 2022-11-09T07:09:37Z Arctic phytoplankton is the base of the foodweb in the most rapidly changing region on the planet. Within this thesis I show that Arctic coastal diatom communities can sustain stable productivity under future climate scenarios by several mechanisms: though large phenotypic plasticity, sorting between highly diverse genotypes and species shifts. The specific focus of this work lies on the role and functioning of intraspecific selection and population dynamics of the diatom Thalassiosira hyalina. Through application of new population genetic methodologies, I was able to resolve detailed selection dynamics in simplified diatom populations and found that their outcomes are not predictable from responses recorded in single-strain cultures, hinting towards interactions between conspecifics. Furthermore, my experiments and field studies on natural populations suggest that dynamics within populations are likely driven by more complex processes than clonal dominance. Forecasts on the future functioning of phytoplankton populations are therefore bound to include intraspecific diversity and evolutionary adaptation as crucial processes. Doctoral or Postdoctoral Thesis Arctic Arktis* Climate change Ocean acidification Phytoplankton Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) Arctic |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
Arctic climate change microalgae diatom adaptation intraspecific diversity phenotypic plasticity strain sorting selection dynamics genotypic interactions artificial population ocean acidification warming multiple stressors 570 570 Life sciences biology ddc:570 |
spellingShingle |
Arctic climate change microalgae diatom adaptation intraspecific diversity phenotypic plasticity strain sorting selection dynamics genotypic interactions artificial population ocean acidification warming multiple stressors 570 570 Life sciences biology ddc:570 Wolf, Klara Katharina Estrella Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics |
topic_facet |
Arctic climate change microalgae diatom adaptation intraspecific diversity phenotypic plasticity strain sorting selection dynamics genotypic interactions artificial population ocean acidification warming multiple stressors 570 570 Life sciences biology ddc:570 |
description |
Arctic phytoplankton is the base of the foodweb in the most rapidly changing region on the planet. Within this thesis I show that Arctic coastal diatom communities can sustain stable productivity under future climate scenarios by several mechanisms: though large phenotypic plasticity, sorting between highly diverse genotypes and species shifts. The specific focus of this work lies on the role and functioning of intraspecific selection and population dynamics of the diatom Thalassiosira hyalina. Through application of new population genetic methodologies, I was able to resolve detailed selection dynamics in simplified diatom populations and found that their outcomes are not predictable from responses recorded in single-strain cultures, hinting towards interactions between conspecifics. Furthermore, my experiments and field studies on natural populations suggest that dynamics within populations are likely driven by more complex processes than clonal dominance. Forecasts on the future functioning of phytoplankton populations are therefore bound to include intraspecific diversity and evolutionary adaptation as crucial processes. |
author2 |
Rost, Björn Bischof, Kai |
format |
Doctoral or Postdoctoral Thesis |
author |
Wolf, Klara Katharina Estrella |
author_facet |
Wolf, Klara Katharina Estrella |
author_sort |
Wolf, Klara Katharina Estrella |
title |
Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics |
title_short |
Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics |
title_full |
Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics |
title_fullStr |
Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics |
title_full_unstemmed |
Adaptive potential of the Arctic diatom Thalassiosira hyalina to climate Change : intraspecific diversity, plasticity and population dynamics |
title_sort |
adaptive potential of the arctic diatom thalassiosira hyalina to climate change : intraspecific diversity, plasticity and population dynamics |
publisher |
Universität Bremen |
publishDate |
2019 |
url |
https://media.suub.uni-bremen.de/handle/elib/1591 https://nbn-resolving.org/urn:nbn:de:gbv:46-00107155-14 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arktis* Climate change Ocean acidification Phytoplankton |
genre_facet |
Arctic Arktis* Climate change Ocean acidification Phytoplankton |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/1591 urn:nbn:de:gbv:46-00107155-14 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766319240322744320 |