Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns
Abstract Geographical patterns in morphology can be the result of divergence among populations due to neutral or selective changes and/or phenotypic plasticity in response to different environments. Marine gastropods are ideal subjects on which to explore these patterns, by virtue of the remarkable...
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crwiley:10.1002/ece3.4015 2024-09-15T18:00:23+00:00 Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns Magnúsdóttir, Hildur Pálsson, Snæbjörn Westfall, Kristen M. Jónsson, Zophonías O. Örnólfsdóttir, Erla Björk Icelandic Centre for Research Háskóli Íslands 2018 http://dx.doi.org/10.1002/ece3.4015 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.4015 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.4015 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 8, issue 9, page 4552-4563 ISSN 2045-7758 2045-7758 journal-article 2018 crwiley https://doi.org/10.1002/ece3.4015 2024-07-02T04:14:03Z Abstract Geographical patterns in morphology can be the result of divergence among populations due to neutral or selective changes and/or phenotypic plasticity in response to different environments. Marine gastropods are ideal subjects on which to explore these patterns, by virtue of the remarkable intraspecific variation in life‐history traits and morphology often observed across relatively small spatial scales. The ubiquitous N‐Atlantic common whelk ( Buccinum undatum ) is well known for spatial variation in life‐history traits and morphology. Previous studies on genetic population structure have revealed that it exhibits significant differentiation across geographic distances. Within Breiðafjörður Bay, a large and shallow bay in W‐Iceland, genetic differentiation was demonstrated between whelks from sites separated by just 20 km. Here, we extended our previous studies on the common whelk in Breiðafjörður Bay by quantifying phenotypic variation in shell morphology and color throughout the Bay. We sought to test whether trait differentiation is dependent on geographic distance and/or environmental variability. Whelk in Breiðafjörður Bay displayed fine‐scale patterns of spatial variation in shape, thickness, and color diversity. Differentiation increased with increasing distance between populations, indicating that population connectivity is limited. Both shape and color varied along a gradient from the inner part of the bay in the east to the outer part in the west. Whelk shells in the innermost part of Breiðafjörður Bay were thick with an elongate shell, round aperture, and low color diversity, whereas in the outer part of the bay the shells were thinner, rounder, with a more elongate aperture and richer color diversity. Significant site‐specific difference in shell traits of the common whelk in correlation with environmental variables indicates the presence of local ecotypes and limited demographic connectivity. Article in Journal/Newspaper Breiðafjörður Iceland Wiley Online Library Ecology and Evolution 8 9 4552 4563 |
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Wiley Online Library |
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English |
description |
Abstract Geographical patterns in morphology can be the result of divergence among populations due to neutral or selective changes and/or phenotypic plasticity in response to different environments. Marine gastropods are ideal subjects on which to explore these patterns, by virtue of the remarkable intraspecific variation in life‐history traits and morphology often observed across relatively small spatial scales. The ubiquitous N‐Atlantic common whelk ( Buccinum undatum ) is well known for spatial variation in life‐history traits and morphology. Previous studies on genetic population structure have revealed that it exhibits significant differentiation across geographic distances. Within Breiðafjörður Bay, a large and shallow bay in W‐Iceland, genetic differentiation was demonstrated between whelks from sites separated by just 20 km. Here, we extended our previous studies on the common whelk in Breiðafjörður Bay by quantifying phenotypic variation in shell morphology and color throughout the Bay. We sought to test whether trait differentiation is dependent on geographic distance and/or environmental variability. Whelk in Breiðafjörður Bay displayed fine‐scale patterns of spatial variation in shape, thickness, and color diversity. Differentiation increased with increasing distance between populations, indicating that population connectivity is limited. Both shape and color varied along a gradient from the inner part of the bay in the east to the outer part in the west. Whelk shells in the innermost part of Breiðafjörður Bay were thick with an elongate shell, round aperture, and low color diversity, whereas in the outer part of the bay the shells were thinner, rounder, with a more elongate aperture and richer color diversity. Significant site‐specific difference in shell traits of the common whelk in correlation with environmental variables indicates the presence of local ecotypes and limited demographic connectivity. |
author2 |
Icelandic Centre for Research Háskóli Íslands |
format |
Article in Journal/Newspaper |
author |
Magnúsdóttir, Hildur Pálsson, Snæbjörn Westfall, Kristen M. Jónsson, Zophonías O. Örnólfsdóttir, Erla Björk |
spellingShingle |
Magnúsdóttir, Hildur Pálsson, Snæbjörn Westfall, Kristen M. Jónsson, Zophonías O. Örnólfsdóttir, Erla Björk Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns |
author_facet |
Magnúsdóttir, Hildur Pálsson, Snæbjörn Westfall, Kristen M. Jónsson, Zophonías O. Örnólfsdóttir, Erla Björk |
author_sort |
Magnúsdóttir, Hildur |
title |
Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns |
title_short |
Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns |
title_full |
Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns |
title_fullStr |
Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns |
title_full_unstemmed |
Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine‐scaled spatial patterns |
title_sort |
shell morphology and color of the subtidal whelk buccinum undatum exhibit fine‐scaled spatial patterns |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/ece3.4015 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.4015 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.4015 |
genre |
Breiðafjörður Iceland |
genre_facet |
Breiðafjörður Iceland |
op_source |
Ecology and Evolution volume 8, issue 9, page 4552-4563 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.4015 |
container_title |
Ecology and Evolution |
container_volume |
8 |
container_issue |
9 |
container_start_page |
4552 |
op_container_end_page |
4563 |
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1810437545262055424 |