Preserving the opportunity to expand: conservation implications of ancient DNA
The application ancient genetic information to management practices can provide a critical understanding of species of conservation concern. Utilizing the interpretations from two ancient DNA datasets I assess conservation implications for the locally threatened caribou (Rangifer tarandus) and the g...
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ftsimonfu:oai:summit.sfu.ca:11460 2023-05-15T18:04:18+02:00 Preserving the opportunity to expand: conservation implications of ancient DNA Kuhn, Tyler Sean 2010-11-15 http://summit.sfu.ca/item/11460 unknown etd6293 http://summit.sfu.ca/item/11460 Thesis 2010 ftsimonfu 2022-04-07T18:37:38Z The application ancient genetic information to management practices can provide a critical understanding of species of conservation concern. Utilizing the interpretations from two ancient DNA datasets I assess conservation implications for the locally threatened caribou (Rangifer tarandus) and the globally endangered saiga antelope (Saiga tatarica). Using Bayesian Inference to assess herd affinity of ancient caribou, I identify a dynamic history, including an unexpected lineage replacement event coincident with the deposition of the White River tephra (~1,000yrsBP). I then combine a recently published saiga aDNA dataset identifying a 65-75% population decline likely related to the glacial-interglacial transition at the Pleistocene-Holocene boundary with recent observations of frequent periods of sudden die-off to imply a life history inherently susceptible to dramatic population swings. Accordingly, conservation strategies for these two dynamic northern species must acknowledge both the likelihood of sudden declines, and the necessity for expansion and recovery. Thesis Rangifer tarandus Summit - SFU Research Repository (Simon Fraser University) |
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Summit - SFU Research Repository (Simon Fraser University) |
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unknown |
description |
The application ancient genetic information to management practices can provide a critical understanding of species of conservation concern. Utilizing the interpretations from two ancient DNA datasets I assess conservation implications for the locally threatened caribou (Rangifer tarandus) and the globally endangered saiga antelope (Saiga tatarica). Using Bayesian Inference to assess herd affinity of ancient caribou, I identify a dynamic history, including an unexpected lineage replacement event coincident with the deposition of the White River tephra (~1,000yrsBP). I then combine a recently published saiga aDNA dataset identifying a 65-75% population decline likely related to the glacial-interglacial transition at the Pleistocene-Holocene boundary with recent observations of frequent periods of sudden die-off to imply a life history inherently susceptible to dramatic population swings. Accordingly, conservation strategies for these two dynamic northern species must acknowledge both the likelihood of sudden declines, and the necessity for expansion and recovery. |
format |
Thesis |
author |
Kuhn, Tyler Sean |
spellingShingle |
Kuhn, Tyler Sean Preserving the opportunity to expand: conservation implications of ancient DNA |
author_facet |
Kuhn, Tyler Sean |
author_sort |
Kuhn, Tyler Sean |
title |
Preserving the opportunity to expand: conservation implications of ancient DNA |
title_short |
Preserving the opportunity to expand: conservation implications of ancient DNA |
title_full |
Preserving the opportunity to expand: conservation implications of ancient DNA |
title_fullStr |
Preserving the opportunity to expand: conservation implications of ancient DNA |
title_full_unstemmed |
Preserving the opportunity to expand: conservation implications of ancient DNA |
title_sort |
preserving the opportunity to expand: conservation implications of ancient dna |
publishDate |
2010 |
url |
http://summit.sfu.ca/item/11460 |
genre |
Rangifer tarandus |
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Rangifer tarandus |
op_relation |
etd6293 http://summit.sfu.ca/item/11460 |
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1766175642702839808 |