MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES
At high latitudes, climatic oscillations have triggered repeated episodes of organismal divergence by geographically isolating populations. For terrestrial species, extended isolation in glacial refugia – ice-free regions that enable terrestrial species persistence through glacial maxima – is hypoth...
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ftunvnewmexicoir:oai:digitalrepository.unm.edu:biol_etds-1321 2023-05-15T15:05:43+02:00 MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES Colella, Jocelyn P 2019-07-19T07:00:00Z application/pdf https://digitalrepository.unm.edu/biol_etds/340 https://digitalrepository.unm.edu/cgi/viewcontent.cgi?article=1321&context=biol_etds unknown UNM Digital Repository https://digitalrepository.unm.edu/biol_etds/340 https://digitalrepository.unm.edu/cgi/viewcontent.cgi?article=1321&context=biol_etds Biology ETDs Conservation Ermine Evolution Genomics Martes Mustela erminea Biology Genetics Molecular Genetics Population Biology text 2019 ftunvnewmexicoir 2023-02-02T22:15:54Z At high latitudes, climatic oscillations have triggered repeated episodes of organismal divergence by geographically isolating populations. For terrestrial species, extended isolation in glacial refugia – ice-free regions that enable terrestrial species persistence through glacial maxima – is hypothesized to stimulate allopatric divergence. Alternatively, upon glacial recession, divergent populations expanded from independent glacial refugia and often contacted other diverging populations. In the absence of reproductive isolating mechanisms, this biogeographic process may trigger hybridization and ultimately, gene flow between divergent taxa. My dissertation research aims to understand how these episodic periods of isolation and contact have impacted the evolution of high latitude species. To understand the role of episodic isolation and gene flow on the evolution and diversification of high-latitude species, my dissertation integrates genetic, genomic, and morphometric characters across multiple high-latitude mesocarnivore mammals within the hyper-diverse Mustelidae family. Overall, I identified substantial cryptic diversity in the Arctic and highlight the complementary roles of glacial and interglacial cycles in the evolution and structuring of high latitude biota. Text Arctic Ermine martes Mustela erminea UNM Digital Repository (The University of New Mexico) Arctic |
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Open Polar |
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UNM Digital Repository (The University of New Mexico) |
op_collection_id |
ftunvnewmexicoir |
language |
unknown |
topic |
Conservation Ermine Evolution Genomics Martes Mustela erminea Biology Genetics Molecular Genetics Population Biology |
spellingShingle |
Conservation Ermine Evolution Genomics Martes Mustela erminea Biology Genetics Molecular Genetics Population Biology Colella, Jocelyn P MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES |
topic_facet |
Conservation Ermine Evolution Genomics Martes Mustela erminea Biology Genetics Molecular Genetics Population Biology |
description |
At high latitudes, climatic oscillations have triggered repeated episodes of organismal divergence by geographically isolating populations. For terrestrial species, extended isolation in glacial refugia – ice-free regions that enable terrestrial species persistence through glacial maxima – is hypothesized to stimulate allopatric divergence. Alternatively, upon glacial recession, divergent populations expanded from independent glacial refugia and often contacted other diverging populations. In the absence of reproductive isolating mechanisms, this biogeographic process may trigger hybridization and ultimately, gene flow between divergent taxa. My dissertation research aims to understand how these episodic periods of isolation and contact have impacted the evolution of high latitude species. To understand the role of episodic isolation and gene flow on the evolution and diversification of high-latitude species, my dissertation integrates genetic, genomic, and morphometric characters across multiple high-latitude mesocarnivore mammals within the hyper-diverse Mustelidae family. Overall, I identified substantial cryptic diversity in the Arctic and highlight the complementary roles of glacial and interglacial cycles in the evolution and structuring of high latitude biota. |
format |
Text |
author |
Colella, Jocelyn P |
author_facet |
Colella, Jocelyn P |
author_sort |
Colella, Jocelyn P |
title |
MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES |
title_short |
MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES |
title_full |
MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES |
title_fullStr |
MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES |
title_full_unstemmed |
MIXING IT UP: THE IMPACT OF EPISODIC INTROGRESSION ON THE EVOLUTION OF HIGH-LATITUDE MESOCARNIVORES |
title_sort |
mixing it up: the impact of episodic introgression on the evolution of high-latitude mesocarnivores |
publisher |
UNM Digital Repository |
publishDate |
2019 |
url |
https://digitalrepository.unm.edu/biol_etds/340 https://digitalrepository.unm.edu/cgi/viewcontent.cgi?article=1321&context=biol_etds |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ermine martes Mustela erminea |
genre_facet |
Arctic Ermine martes Mustela erminea |
op_source |
Biology ETDs |
op_relation |
https://digitalrepository.unm.edu/biol_etds/340 https://digitalrepository.unm.edu/cgi/viewcontent.cgi?article=1321&context=biol_etds |
_version_ |
1766337363840073728 |