Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea)
The Ivory Gull (Pagophila eburnea) is classified as "Endangered" under the Species at Risk Act in Canada due to an 80% decline in population survey counts at known breeding sites between the early 1980s and 2003-2005. This study aimed to fill critical information gaps with regard to the Iv...
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Memorial University of Newfoundland
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ftmemorialuniv:oai:research.library.mun.ca:9448 2023-10-01T03:54:05+02:00 Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea) Royston, Stephanie Lynne 2008 application/pdf https://research.library.mun.ca/9448/ https://research.library.mun.ca/9448/1/Royston_Stephanie.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/9448/1/Royston_Stephanie.pdf Royston, Stephanie Lynne <https://research.library.mun.ca/view/creator_az/Royston=3AStephanie_Lynne=3A=3A.html> (2008) Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea). Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 2008 ftmemorialuniv 2023-09-03T06:47:25Z The Ivory Gull (Pagophila eburnea) is classified as "Endangered" under the Species at Risk Act in Canada due to an 80% decline in population survey counts at known breeding sites between the early 1980s and 2003-2005. This study aimed to fill critical information gaps with regard to the Ivory Gull's global population structure, with a genomic approach of several mitochondrial gene sequences. Ivory Gulls have a low level of genetic diversity, similar to other endangered and arctic species. Most of the genetic variance is within populations, such that the Canadian, Greenland and Norwegian breeding populations are genetically indistinguishable and the source of the Labrador Sea wintering birds is unidentifiable. The Alaskan non-breeding population was weakly differentiated from the breeding colonies analyzed and the Labrador Sea wintering population. -- Ross's Gull (Rhodostethia rosea) is classified as Threatened in Canada due to the extremely small numbers of breeding birds. A small number of museum specimens were used to analyze the control region sequence. The genetic diversity of the Canadian birds was much lower than the Alaskan individuals and the two populations were weakly differentiated although the source of this was unclear. Thesis Arctic Greenland ivory gull Labrador Sea Pagophila eburnea Memorial University of Newfoundland: Research Repository Arctic Canada Greenland |
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Memorial University of Newfoundland: Research Repository |
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English |
description |
The Ivory Gull (Pagophila eburnea) is classified as "Endangered" under the Species at Risk Act in Canada due to an 80% decline in population survey counts at known breeding sites between the early 1980s and 2003-2005. This study aimed to fill critical information gaps with regard to the Ivory Gull's global population structure, with a genomic approach of several mitochondrial gene sequences. Ivory Gulls have a low level of genetic diversity, similar to other endangered and arctic species. Most of the genetic variance is within populations, such that the Canadian, Greenland and Norwegian breeding populations are genetically indistinguishable and the source of the Labrador Sea wintering birds is unidentifiable. The Alaskan non-breeding population was weakly differentiated from the breeding colonies analyzed and the Labrador Sea wintering population. -- Ross's Gull (Rhodostethia rosea) is classified as Threatened in Canada due to the extremely small numbers of breeding birds. A small number of museum specimens were used to analyze the control region sequence. The genetic diversity of the Canadian birds was much lower than the Alaskan individuals and the two populations were weakly differentiated although the source of this was unclear. |
format |
Thesis |
author |
Royston, Stephanie Lynne |
spellingShingle |
Royston, Stephanie Lynne Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea) |
author_facet |
Royston, Stephanie Lynne |
author_sort |
Royston, Stephanie Lynne |
title |
Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea) |
title_short |
Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea) |
title_full |
Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea) |
title_fullStr |
Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea) |
title_full_unstemmed |
Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea) |
title_sort |
genetic structure, diversity and evolutionary history of the ivory gull (pagophila eburnea) and ross's gull (rhodostethia rosea) |
publisher |
Memorial University of Newfoundland |
publishDate |
2008 |
url |
https://research.library.mun.ca/9448/ https://research.library.mun.ca/9448/1/Royston_Stephanie.pdf |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Greenland ivory gull Labrador Sea Pagophila eburnea |
genre_facet |
Arctic Greenland ivory gull Labrador Sea Pagophila eburnea |
op_relation |
https://research.library.mun.ca/9448/1/Royston_Stephanie.pdf Royston, Stephanie Lynne <https://research.library.mun.ca/view/creator_az/Royston=3AStephanie_Lynne=3A=3A.html> (2008) Genetic structure, diversity and evolutionary history of the Ivory Gull (Pagophila eburnea) and Ross's Gull (Rhodostethia rosea). Masters thesis, Memorial University of Newfoundland. |
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thesis_license |
_version_ |
1778521390385725440 |