White-tailed eagles in time and space
Genomic population bottlenecks and small population sizes are well described and well-studied areas of biology. However, few studies analyse samples from before and after a population have gone through a genetic bottleneck, and thus studies commonly infer bottleneck effects only using modern samples...
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University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences
2021
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ftopinvisindi:oai:opinvisindi.is:20.500.11815/2739 2023-05-15T16:30:10+02:00 White-tailed eagles in time and space White-tailed eagles in time and space - Population genetics and the aftermath of severe bottlenecks in Haliaeetus albicilla Hansen, Charles Christian Riis Snæbjörn Pálsson Líf- og umhverfisvísindadeild (HÍ) Faculty of Life and Environmental Sciences (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland 2021 214 pages https://hdl.handle.net/20.500.11815/2739 en eng University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences Hansen, CCR. White-tailed eagles in time and space. PhD dissertation. Faculty of Life and Environmental Sciences, University of Iceland. 2021 978-9935-9614-7-1 https://hdl.handle.net/20.500.11815/2739 info:eu-repo/semantics/openAccess Population gentics Biology White-tailed eagle Evolutionary genetics Haförn Haliaeetus albicilla Doktorsritgerðir info:eu-repo/semantics/doctoralThesis 2021 ftopinvisindi https://doi.org/20.500.11815/2739 2022-11-18T06:52:13Z Genomic population bottlenecks and small population sizes are well described and well-studied areas of biology. However, few studies analyse samples from before and after a population have gone through a genetic bottleneck, and thus studies commonly infer bottleneck effects only using modern samples, modelling, or by comparison with populations that have not gone through bottlenecks. The white-tailed eagle is one of many species which have experienced large reductions in population sizes due to human influences, resulting in extinction in several geographical areas. To study the effects of bottlenecks and genetic variation in white-tailed eagles in Iceland and other countries in the north-western part of the species range, three studies focusing on different aspects of population genomics were conducted. Firstly, the mitogenomic diversity and population history were explored for Iceland and four neighbouring countries, using modern whole mitochondrial genomes, extending knowledge regarding the mitochondrial diversity, and revealing signs of selection maintaining the mitogenomic variation. Secondly, applications for identifying the homogametic sex chromosomes were evaluated. Distinguishing the main chromosomal types is important as they vary in effective population size and may have different evolutionary histories. The third and major study evaluated the impact of a bottleneck and assessed the genomic variation using modern and historic museum samples from Iceland, Greenland and four other countries from the mainland of Europe. A direct effect of bottlenecks was observed on variation within and among countries as well as within and among individuals. Furthermore, the study resolved part of the evolutionary history of the analysed populations. Áhrif stofnstærðarsveiflna á erfðabreytileika og hegðun breytileika í litlum stofnum hefur verið vel lýst. Fjölmargar rannsóknir í líffræði hafa verið gerðar á erfðabreytileika stofna en sjaldan hafa sýni verið greind fyrir og eftir slíkar niðursveiflur, sem kallaðar hafa ... Doctoral or Postdoctoral Thesis Greenland Haliaeetus albicilla Iceland White-tailed eagle Opin vísindi (Iceland) Gerðar ENVELOPE(-20.878,-20.878,63.834,63.834) Greenland |
institution |
Open Polar |
collection |
Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Population gentics Biology White-tailed eagle Evolutionary genetics Haförn Haliaeetus albicilla Doktorsritgerðir |
spellingShingle |
Population gentics Biology White-tailed eagle Evolutionary genetics Haförn Haliaeetus albicilla Doktorsritgerðir Hansen, Charles Christian Riis White-tailed eagles in time and space |
topic_facet |
Population gentics Biology White-tailed eagle Evolutionary genetics Haförn Haliaeetus albicilla Doktorsritgerðir |
description |
Genomic population bottlenecks and small population sizes are well described and well-studied areas of biology. However, few studies analyse samples from before and after a population have gone through a genetic bottleneck, and thus studies commonly infer bottleneck effects only using modern samples, modelling, or by comparison with populations that have not gone through bottlenecks. The white-tailed eagle is one of many species which have experienced large reductions in population sizes due to human influences, resulting in extinction in several geographical areas. To study the effects of bottlenecks and genetic variation in white-tailed eagles in Iceland and other countries in the north-western part of the species range, three studies focusing on different aspects of population genomics were conducted. Firstly, the mitogenomic diversity and population history were explored for Iceland and four neighbouring countries, using modern whole mitochondrial genomes, extending knowledge regarding the mitochondrial diversity, and revealing signs of selection maintaining the mitogenomic variation. Secondly, applications for identifying the homogametic sex chromosomes were evaluated. Distinguishing the main chromosomal types is important as they vary in effective population size and may have different evolutionary histories. The third and major study evaluated the impact of a bottleneck and assessed the genomic variation using modern and historic museum samples from Iceland, Greenland and four other countries from the mainland of Europe. A direct effect of bottlenecks was observed on variation within and among countries as well as within and among individuals. Furthermore, the study resolved part of the evolutionary history of the analysed populations. Áhrif stofnstærðarsveiflna á erfðabreytileika og hegðun breytileika í litlum stofnum hefur verið vel lýst. Fjölmargar rannsóknir í líffræði hafa verið gerðar á erfðabreytileika stofna en sjaldan hafa sýni verið greind fyrir og eftir slíkar niðursveiflur, sem kallaðar hafa ... |
author2 |
Snæbjörn Pálsson Líf- og umhverfisvísindadeild (HÍ) Faculty of Life and Environmental Sciences (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland |
format |
Doctoral or Postdoctoral Thesis |
author |
Hansen, Charles Christian Riis |
author_facet |
Hansen, Charles Christian Riis |
author_sort |
Hansen, Charles Christian Riis |
title |
White-tailed eagles in time and space |
title_short |
White-tailed eagles in time and space |
title_full |
White-tailed eagles in time and space |
title_fullStr |
White-tailed eagles in time and space |
title_full_unstemmed |
White-tailed eagles in time and space |
title_sort |
white-tailed eagles in time and space |
publisher |
University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11815/2739 |
long_lat |
ENVELOPE(-20.878,-20.878,63.834,63.834) |
geographic |
Gerðar Greenland |
geographic_facet |
Gerðar Greenland |
genre |
Greenland Haliaeetus albicilla Iceland White-tailed eagle |
genre_facet |
Greenland Haliaeetus albicilla Iceland White-tailed eagle |
op_relation |
Hansen, CCR. White-tailed eagles in time and space. PhD dissertation. Faculty of Life and Environmental Sciences, University of Iceland. 2021 978-9935-9614-7-1 https://hdl.handle.net/20.500.11815/2739 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/2739 |
_version_ |
1766019893242626048 |