Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed
Abstract Habitat fragmentation has become an increasing concern in conservation biology and is of prime importance with the expansion of forest road networks toward boreal and arctic regions. The aim of this study was to evaluate the effects of artificial and natural barriers to fish movement on the...
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crwiley:10.1080/00028487.2014.952449 2024-09-09T19:26:35+00:00 Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed Torterotot, Jean‐Baptiste Perrier, Charles Bergeron, Normand E. Bernatchez, Louis 2014 http://dx.doi.org/10.1080/00028487.2014.952449 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2014.952449 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 143, issue 6, page 1577-1591 ISSN 0002-8487 1548-8659 journal-article 2014 crwiley https://doi.org/10.1080/00028487.2014.952449 2024-08-06T04:20:08Z Abstract Habitat fragmentation has become an increasing concern in conservation biology and is of prime importance with the expansion of forest road networks toward boreal and arctic regions. The aim of this study was to evaluate the effects of artificial and natural barriers to fish movement on the fine‐scale distribution of genetic diversity in Brook Trout Salvelinus fontinalis . We genotyped 995 individuals sampled from 25 locations in a boreal watershed fragmented by culverts and natural waterfalls. Using a landscape genetics approach, we tested whether the presence of both types of barrier resulted in decreased genetic diversity and increased divergence within isolated locations. Results showed that genetic divergence was enhanced between sites separated by barriers and that genetic diversity was reduced within sites located upstream of barriers. Moreover, the observed changes in levels of divergence and diversity were correlated with the number of barriers. Overall, our results suggested that the effects of culverts and natural waterfalls were similar. To our knowledge, this is the first study illustrating the effects of forest road culverts and natural waterfalls on the distribution of genetic diversity in Brook Trout within a boreal watershed. We discuss our results in the context of boreal forest road network expansion and in light of the need to better understand the potential impacts of road infrastructure on the long‐term persistence of fish populations. Received January 24, 2014; accepted July 11, 2014 Article in Journal/Newspaper Arctic Wiley Online Library Arctic Transactions of the American Fisheries Society 143 6 1577 1591 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Habitat fragmentation has become an increasing concern in conservation biology and is of prime importance with the expansion of forest road networks toward boreal and arctic regions. The aim of this study was to evaluate the effects of artificial and natural barriers to fish movement on the fine‐scale distribution of genetic diversity in Brook Trout Salvelinus fontinalis . We genotyped 995 individuals sampled from 25 locations in a boreal watershed fragmented by culverts and natural waterfalls. Using a landscape genetics approach, we tested whether the presence of both types of barrier resulted in decreased genetic diversity and increased divergence within isolated locations. Results showed that genetic divergence was enhanced between sites separated by barriers and that genetic diversity was reduced within sites located upstream of barriers. Moreover, the observed changes in levels of divergence and diversity were correlated with the number of barriers. Overall, our results suggested that the effects of culverts and natural waterfalls were similar. To our knowledge, this is the first study illustrating the effects of forest road culverts and natural waterfalls on the distribution of genetic diversity in Brook Trout within a boreal watershed. We discuss our results in the context of boreal forest road network expansion and in light of the need to better understand the potential impacts of road infrastructure on the long‐term persistence of fish populations. Received January 24, 2014; accepted July 11, 2014 |
format |
Article in Journal/Newspaper |
author |
Torterotot, Jean‐Baptiste Perrier, Charles Bergeron, Normand E. Bernatchez, Louis |
spellingShingle |
Torterotot, Jean‐Baptiste Perrier, Charles Bergeron, Normand E. Bernatchez, Louis Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed |
author_facet |
Torterotot, Jean‐Baptiste Perrier, Charles Bergeron, Normand E. Bernatchez, Louis |
author_sort |
Torterotot, Jean‐Baptiste |
title |
Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed |
title_short |
Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed |
title_full |
Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed |
title_fullStr |
Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed |
title_full_unstemmed |
Influence of Forest Road Culverts and Waterfalls on the Fine‐Scale Distribution of Brook Trout Genetic Diversity in a Boreal Watershed |
title_sort |
influence of forest road culverts and waterfalls on the fine‐scale distribution of brook trout genetic diversity in a boreal watershed |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1080/00028487.2014.952449 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2014.952449 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Transactions of the American Fisheries Society volume 143, issue 6, page 1577-1591 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/00028487.2014.952449 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
143 |
container_issue |
6 |
container_start_page |
1577 |
op_container_end_page |
1591 |
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1809896175743008768 |