USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION
I tested the relative importance of life history, environmental barriers, dendritic structure, and historical colonization on the neutral genetic structure of a longnose sucker (Catostomus catostomus) metapopulation in the Kogaluk River of northern Labrador. Samples were collected from eight lakes,...
Main Author: | |
---|---|
Other Authors: | , , , , , , , |
Language: | English |
Published: |
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/10222/64558 |
id |
ftdalhouse:oai:DalSpace.library.dal.ca:10222/64558 |
---|---|
record_format |
openpolar |
spelling |
ftdalhouse:oai:DalSpace.library.dal.ca:10222/64558 2023-05-15T15:53:41+02:00 USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION Salisbury, Sarah Jane Department of Biology Master of Science N/A Dr. Sophia Stone Dr. Paul Bentzen Dr. Mark Johnston Dr. Daniel Ruzzante Not Applicable 2015-10-30T18:45:57Z http://hdl.handle.net/10222/64558 en eng http://hdl.handle.net/10222/64558 Landscape genetics Dendritic metapopulations Catostomus catostomus Opercula dating Effective Size Migration-Drift Equilibrium Isolation by Distance Historical Colonization 2015 ftdalhouse 2022-03-20T00:10:40Z I tested the relative importance of life history, environmental barriers, dendritic structure, and historical colonization on the neutral genetic structure of a longnose sucker (Catostomus catostomus) metapopulation in the Kogaluk River of northern Labrador. Samples were collected from eight lakes, genotyped with 17 microsatellites, and aged using opercula. Lakes demonstrated varying migration rates and genetic differentiation. Isolation by distance was found only when the two most genetically distinct lakes were removed from the analyses, suggesting a lack of migration-drift equilibrium and the importance of historical and contemporary factors in shaping metapopulation structure. Lower allelic richness in the headwaters due to the dendritic structure of the watershed contrasted with high effective population sizes of the south-western headwaters, potentially due to their earlier colonization. Recent colonization, variable migration rates between lakes, long generation times, and upstream migration have stalled achievement of a typical dendritic metapopulation structure and its associated elevated effective size. Other/Unknown Material Catostomus catostomus Longnose sucker Subarctic Dalhousie University: DalSpace Institutional Repository |
institution |
Open Polar |
collection |
Dalhousie University: DalSpace Institutional Repository |
op_collection_id |
ftdalhouse |
language |
English |
topic |
Landscape genetics Dendritic metapopulations Catostomus catostomus Opercula dating Effective Size Migration-Drift Equilibrium Isolation by Distance Historical Colonization |
spellingShingle |
Landscape genetics Dendritic metapopulations Catostomus catostomus Opercula dating Effective Size Migration-Drift Equilibrium Isolation by Distance Historical Colonization Salisbury, Sarah Jane USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION |
topic_facet |
Landscape genetics Dendritic metapopulations Catostomus catostomus Opercula dating Effective Size Migration-Drift Equilibrium Isolation by Distance Historical Colonization |
description |
I tested the relative importance of life history, environmental barriers, dendritic structure, and historical colonization on the neutral genetic structure of a longnose sucker (Catostomus catostomus) metapopulation in the Kogaluk River of northern Labrador. Samples were collected from eight lakes, genotyped with 17 microsatellites, and aged using opercula. Lakes demonstrated varying migration rates and genetic differentiation. Isolation by distance was found only when the two most genetically distinct lakes were removed from the analyses, suggesting a lack of migration-drift equilibrium and the importance of historical and contemporary factors in shaping metapopulation structure. Lower allelic richness in the headwaters due to the dendritic structure of the watershed contrasted with high effective population sizes of the south-western headwaters, potentially due to their earlier colonization. Recent colonization, variable migration rates between lakes, long generation times, and upstream migration have stalled achievement of a typical dendritic metapopulation structure and its associated elevated effective size. |
author2 |
Department of Biology Master of Science N/A Dr. Sophia Stone Dr. Paul Bentzen Dr. Mark Johnston Dr. Daniel Ruzzante Not Applicable |
author |
Salisbury, Sarah Jane |
author_facet |
Salisbury, Sarah Jane |
author_sort |
Salisbury, Sarah Jane |
title |
USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION |
title_short |
USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION |
title_full |
USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION |
title_fullStr |
USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION |
title_full_unstemmed |
USING LANDSCAPE GENETICS TO FORM A PORTRAIT OF A SUCKER: AN ARGUMENT FOR THE CONSIDERATION OF MULTIPLE FACTORS TO CAPTURE THE WHOLE PICTURE OF A SUBARCTIC DENDRITIC METAPOPULATION |
title_sort |
using landscape genetics to form a portrait of a sucker: an argument for the consideration of multiple factors to capture the whole picture of a subarctic dendritic metapopulation |
publishDate |
2015 |
url |
http://hdl.handle.net/10222/64558 |
genre |
Catostomus catostomus Longnose sucker Subarctic |
genre_facet |
Catostomus catostomus Longnose sucker Subarctic |
op_relation |
http://hdl.handle.net/10222/64558 |
_version_ |
1766388848894410752 |