Linking genotype, ecotype, and phenotype in an intensively managed large carnivore
Numerous factors influence fitness of free-ranging animals, yet often these are uncharacterized. We integrated GPS habitat use data and genetic profiling to determine their influence on fitness proxies (mass, length, and body condition) in a threatened population of grizzly bears (Ursus arctos) in A...
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Uppsala universitet, Evolutionsbiologi
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ftuppsalauniv:oai:DiVA.org:uu-221002 2023-11-12T04:27:47+01:00 Linking genotype, ecotype, and phenotype in an intensively managed large carnivore Shafer, Aaron B. A. Nielsen, Scott E. Northrup, Joseph M. Stenhouse, Gordon B. 2014 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-221002 https://doi.org/10.1111/eva.12122 eng eng Uppsala universitet, Evolutionsbiologi Evolutionary Applications, 2014, 7:2, s. 301-312 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-221002 doi:10.1111/eva.12122 ISI:000331189000009 info:eu-repo/semantics/openAccess cluster analysis genetics global positioning system grizzly bear habitat use Biological Sciences Biologiska vetenskaper Article in journal info:eu-repo/semantics/article text 2014 ftuppsalauniv https://doi.org/10.1111/eva.12122 2023-10-25T22:31:54Z Numerous factors influence fitness of free-ranging animals, yet often these are uncharacterized. We integrated GPS habitat use data and genetic profiling to determine their influence on fitness proxies (mass, length, and body condition) in a threatened population of grizzly bears (Ursus arctos) in Alberta, Canada. We detected distinct genetic and habitat use (ecotype) clusters, with individual cluster assignments, or genotype/ecotype, being correlated (Pearson r=0.34, P<0.01). Related individuals showed evidence of similar habitat use patterns, irrespective of geographic distance and sex. Fitness proxies were influenced by sex, age, and habitat use, and homozygosity had a positive effect on these proxies that could be indicative of outbreeding depression. We further documented over 300 translocations occurring in the province since the 1970s, often to areas with significantly different habitat. We argue this could be unintentionally causing the pattern of outbreeding, although the heterozygosity correlation may instead be explained by the energetic costs associated with larger body size. The observed patterns, together with the unprecedented human-mediated migrations, make understanding the link between genotype, ecotype, and phenotype and mechanisms behind the negative heterozygosity-fitness correlations critical for management and conservation of this species. Article in Journal/Newspaper Ursus arctos Uppsala University: Publications (DiVA) Canada Evolutionary Applications 7 2 301 312 |
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Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
cluster analysis genetics global positioning system grizzly bear habitat use Biological Sciences Biologiska vetenskaper |
spellingShingle |
cluster analysis genetics global positioning system grizzly bear habitat use Biological Sciences Biologiska vetenskaper Shafer, Aaron B. A. Nielsen, Scott E. Northrup, Joseph M. Stenhouse, Gordon B. Linking genotype, ecotype, and phenotype in an intensively managed large carnivore |
topic_facet |
cluster analysis genetics global positioning system grizzly bear habitat use Biological Sciences Biologiska vetenskaper |
description |
Numerous factors influence fitness of free-ranging animals, yet often these are uncharacterized. We integrated GPS habitat use data and genetic profiling to determine their influence on fitness proxies (mass, length, and body condition) in a threatened population of grizzly bears (Ursus arctos) in Alberta, Canada. We detected distinct genetic and habitat use (ecotype) clusters, with individual cluster assignments, or genotype/ecotype, being correlated (Pearson r=0.34, P<0.01). Related individuals showed evidence of similar habitat use patterns, irrespective of geographic distance and sex. Fitness proxies were influenced by sex, age, and habitat use, and homozygosity had a positive effect on these proxies that could be indicative of outbreeding depression. We further documented over 300 translocations occurring in the province since the 1970s, often to areas with significantly different habitat. We argue this could be unintentionally causing the pattern of outbreeding, although the heterozygosity correlation may instead be explained by the energetic costs associated with larger body size. The observed patterns, together with the unprecedented human-mediated migrations, make understanding the link between genotype, ecotype, and phenotype and mechanisms behind the negative heterozygosity-fitness correlations critical for management and conservation of this species. |
format |
Article in Journal/Newspaper |
author |
Shafer, Aaron B. A. Nielsen, Scott E. Northrup, Joseph M. Stenhouse, Gordon B. |
author_facet |
Shafer, Aaron B. A. Nielsen, Scott E. Northrup, Joseph M. Stenhouse, Gordon B. |
author_sort |
Shafer, Aaron B. A. |
title |
Linking genotype, ecotype, and phenotype in an intensively managed large carnivore |
title_short |
Linking genotype, ecotype, and phenotype in an intensively managed large carnivore |
title_full |
Linking genotype, ecotype, and phenotype in an intensively managed large carnivore |
title_fullStr |
Linking genotype, ecotype, and phenotype in an intensively managed large carnivore |
title_full_unstemmed |
Linking genotype, ecotype, and phenotype in an intensively managed large carnivore |
title_sort |
linking genotype, ecotype, and phenotype in an intensively managed large carnivore |
publisher |
Uppsala universitet, Evolutionsbiologi |
publishDate |
2014 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-221002 https://doi.org/10.1111/eva.12122 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
Evolutionary Applications, 2014, 7:2, s. 301-312 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-221002 doi:10.1111/eva.12122 ISI:000331189000009 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/eva.12122 |
container_title |
Evolutionary Applications |
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7 |
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2 |
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301 |
op_container_end_page |
312 |
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