Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus)
Abstract Anthropogenic factors such as land‐use change, pollution, and climate change can cause fragmentation and reduce the amount of habitat by altering preferred conditions. This process can also bring about novel species interactions and, in some cases, create or alter levels of hybridisation be...
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crwiley:10.1111/fwb.13225 2024-09-15T18:02:58+00:00 Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus) Rudolfsen, Tyana Ruppert, Jonathan L. W. Taylor, Eric B. Davis, Corey S. Watkinson, Douglas A. Poesch, Mark S. Fisheries and Oceans Canada 2018 http://dx.doi.org/10.1111/fwb.13225 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffwb.13225 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.13225 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Freshwater Biology volume 64, issue 3, page 391-404 ISSN 0046-5070 1365-2427 journal-article 2018 crwiley https://doi.org/10.1111/fwb.13225 2024-08-06T04:20:47Z Abstract Anthropogenic factors such as land‐use change, pollution, and climate change can cause fragmentation and reduce the amount of habitat by altering preferred conditions. This process can also bring about novel species interactions and, in some cases, create or alter levels of hybridisation between closely related species. We assessed the threat of hybridisation to the persistence of the Rocky Mountain sculpin ( Cottus sp.) and the slimy sculpin ( Cottus cognatus ) in the Flathead River, British Columbia, Canada. Individuals collected from 95 sites provided 731 genetic samples that were genotyped at 10 polymorphic microsatellite loci and mitochondrial cytochrome C oxidase sequences, to assess: (a) if there are differences in the distribution of Rocky Mountain sculpin between contemporary and historical (35 years ago) records, (b) if hybridisation is symmetrical in terms of sex‐specific parental contributions, and (c) if habitat preferences contribute to the distribution of pure parental and hybrid populations. We identified three hybrid locations and that Rocky Mountain sculpin have an altitudinal distribution (1,200–1,902 m) that exceeds the range limit reported 35 years ago (1,200–1,372 m). Additionally, hybrid mating appears to involve similar proportions of parents of both sexes from each species. Lastly, elevation, turbidity, and sediment type are significant factors predicting the presence of parental species. Further, elevation and water conductivity are significant factors to predicting hybrid presence. The contrasting associations of parental species with different habitat types appear to influence the extent and distribution of hybridisation. Our results suggest that Rocky Mountain sculpin (a species of conservation concern) do not appear to be at risk due to hybridisation, but that this is a system in flux. Given the importance of environmental conditions to hybridisation, there is a need to quantify how environmental changes may disrupt current hybridisation and potential population viability. Article in Journal/Newspaper Cottus cognatus Slimy sculpin Wiley Online Library Freshwater Biology 64 3 391 404 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Anthropogenic factors such as land‐use change, pollution, and climate change can cause fragmentation and reduce the amount of habitat by altering preferred conditions. This process can also bring about novel species interactions and, in some cases, create or alter levels of hybridisation between closely related species. We assessed the threat of hybridisation to the persistence of the Rocky Mountain sculpin ( Cottus sp.) and the slimy sculpin ( Cottus cognatus ) in the Flathead River, British Columbia, Canada. Individuals collected from 95 sites provided 731 genetic samples that were genotyped at 10 polymorphic microsatellite loci and mitochondrial cytochrome C oxidase sequences, to assess: (a) if there are differences in the distribution of Rocky Mountain sculpin between contemporary and historical (35 years ago) records, (b) if hybridisation is symmetrical in terms of sex‐specific parental contributions, and (c) if habitat preferences contribute to the distribution of pure parental and hybrid populations. We identified three hybrid locations and that Rocky Mountain sculpin have an altitudinal distribution (1,200–1,902 m) that exceeds the range limit reported 35 years ago (1,200–1,372 m). Additionally, hybrid mating appears to involve similar proportions of parents of both sexes from each species. Lastly, elevation, turbidity, and sediment type are significant factors predicting the presence of parental species. Further, elevation and water conductivity are significant factors to predicting hybrid presence. The contrasting associations of parental species with different habitat types appear to influence the extent and distribution of hybridisation. Our results suggest that Rocky Mountain sculpin (a species of conservation concern) do not appear to be at risk due to hybridisation, but that this is a system in flux. Given the importance of environmental conditions to hybridisation, there is a need to quantify how environmental changes may disrupt current hybridisation and potential population viability. |
author2 |
Fisheries and Oceans Canada |
format |
Article in Journal/Newspaper |
author |
Rudolfsen, Tyana Ruppert, Jonathan L. W. Taylor, Eric B. Davis, Corey S. Watkinson, Douglas A. Poesch, Mark S. |
spellingShingle |
Rudolfsen, Tyana Ruppert, Jonathan L. W. Taylor, Eric B. Davis, Corey S. Watkinson, Douglas A. Poesch, Mark S. Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus) |
author_facet |
Rudolfsen, Tyana Ruppert, Jonathan L. W. Taylor, Eric B. Davis, Corey S. Watkinson, Douglas A. Poesch, Mark S. |
author_sort |
Rudolfsen, Tyana |
title |
Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus) |
title_short |
Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus) |
title_full |
Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus) |
title_fullStr |
Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus) |
title_full_unstemmed |
Habitat use and hybridisation between the Rocky Mountain sculpin ( Cottussp.) and slimy sculpin ( Cottus cognatus) |
title_sort |
habitat use and hybridisation between the rocky mountain sculpin ( cottussp.) and slimy sculpin ( cottus cognatus) |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/fwb.13225 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffwb.13225 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.13225 |
genre |
Cottus cognatus Slimy sculpin |
genre_facet |
Cottus cognatus Slimy sculpin |
op_source |
Freshwater Biology volume 64, issue 3, page 391-404 ISSN 0046-5070 1365-2427 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fwb.13225 |
container_title |
Freshwater Biology |
container_volume |
64 |
container_issue |
3 |
container_start_page |
391 |
op_container_end_page |
404 |
_version_ |
1810440501508177920 |