Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring?
Abstract – In several carotenoids‐based ornamented species, females invest carotenoids also into their gametes to increase the quality of the rapidly growing zygote. The extra carotenoids demand may cause females to trade‐off valuable carotenoids between ornament and eggs. This may be one reason why...
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crwiley:10.1111/j.1600-0633.2007.00286.x 2024-03-24T08:58:28+00:00 Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring? Nordeide, J. T. Mohus, Å. Nicolaisen, O. Volden, R. Egeland, E. S. 2008 http://dx.doi.org/10.1111/j.1600-0633.2007.00286.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2007.00286.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2007.00286.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 17, issue 2, page 328-339 ISSN 0906-6691 1600-0633 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2008 crwiley https://doi.org/10.1111/j.1600-0633.2007.00286.x 2024-02-28T02:08:46Z Abstract – In several carotenoids‐based ornamented species, females invest carotenoids also into their gametes to increase the quality of the rapidly growing zygote. The extra carotenoids demand may cause females to trade‐off valuable carotenoids between ornament and eggs. This may be one reason why females are less showy ornamented than males. In our study‐population of Arctic charr, individuals of both sexes vary in degree of conspicuousness of their red abdomen and fins. None of the two carotenoids‐based ornaments was significantly associated with either (i) the amount of carotenoids in the egg, although being negative and close to significance, or (ii) potential condition‐dependent parameters like relative density of leucocytes, condition‐factor and parasitism. This study does not support the ‘direct selection hypothesis’ to explain the existence of female ornaments, and gives equivocal support for the hypothesis of asymmetrical investment of carotenoids into gametes to explain the less showy ornaments in females when compared with males. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Wiley Online Library Arctic Ecology of Freshwater Fish 17 2 328 339 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Nordeide, J. T. Mohus, Å. Nicolaisen, O. Volden, R. Egeland, E. S. Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring? |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract – In several carotenoids‐based ornamented species, females invest carotenoids also into their gametes to increase the quality of the rapidly growing zygote. The extra carotenoids demand may cause females to trade‐off valuable carotenoids between ornament and eggs. This may be one reason why females are less showy ornamented than males. In our study‐population of Arctic charr, individuals of both sexes vary in degree of conspicuousness of their red abdomen and fins. None of the two carotenoids‐based ornaments was significantly associated with either (i) the amount of carotenoids in the egg, although being negative and close to significance, or (ii) potential condition‐dependent parameters like relative density of leucocytes, condition‐factor and parasitism. This study does not support the ‘direct selection hypothesis’ to explain the existence of female ornaments, and gives equivocal support for the hypothesis of asymmetrical investment of carotenoids into gametes to explain the less showy ornaments in females when compared with males. |
format |
Article in Journal/Newspaper |
author |
Nordeide, J. T. Mohus, Å. Nicolaisen, O. Volden, R. Egeland, E. S. |
author_facet |
Nordeide, J. T. Mohus, Å. Nicolaisen, O. Volden, R. Egeland, E. S. |
author_sort |
Nordeide, J. T. |
title |
Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring? |
title_short |
Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring? |
title_full |
Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring? |
title_fullStr |
Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring? |
title_full_unstemmed |
Offspring or ornaments? Is carotenoid‐based ornamentation in female Arctic charr, Salvelinus alpinus (L.), condition‐dependent and traded off against offspring? |
title_sort |
offspring or ornaments? is carotenoid‐based ornamentation in female arctic charr, salvelinus alpinus (l.), condition‐dependent and traded off against offspring? |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1111/j.1600-0633.2007.00286.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2007.00286.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2007.00286.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Ecology of Freshwater Fish volume 17, issue 2, page 328-339 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0633.2007.00286.x |
container_title |
Ecology of Freshwater Fish |
container_volume |
17 |
container_issue |
2 |
container_start_page |
328 |
op_container_end_page |
339 |
_version_ |
1794398111388401664 |