Lek fidelity of male Arctic charr
For males, the reproductive advantage of joining a lek varies among leks; consequently, males should join the lek yielding the highest fitness. When males experience low reproductive opportunities at one lek, it may pay to move to another. By observing tagged male Arctic charr (Salvelinus alpinus L....
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Language: | English |
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2004
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Online Access: | http://dx.doi.org/10.1139/z04-106 http://www.nrcresearchpress.com/doi/pdf/10.1139/z04-106 |
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crcansciencepubl:10.1139/z04-106 2023-12-17T10:23:44+01:00 Lek fidelity of male Arctic charr Figenschou, L Folstad, I Liljedal, S 2004 http://dx.doi.org/10.1139/z04-106 http://www.nrcresearchpress.com/doi/pdf/10.1139/z04-106 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 82, issue 8, page 1278-1284 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2004 crcansciencepubl https://doi.org/10.1139/z04-106 2023-11-19T13:38:56Z For males, the reproductive advantage of joining a lek varies among leks; consequently, males should join the lek yielding the highest fitness. When males experience low reproductive opportunities at one lek, it may pay to move to another. By observing tagged male Arctic charr (Salvelinus alpinus L., 1758) at three different lek sites within one lake, we examined whether males moved between leks. Some movement was observed, especially between closely located leks, but fish length and spermatocrit, traits indicative of reproductive success, were unrelated to whether or not individuals moved between leks. Little to no movement was observed between more distantly separated leks, even though the costs associated with movements across the relatively short distances between these leks should be low. This suggests that individuals, rather than moving from leks where they have low reproductive success, are relatively stationary. The lek fidelity documented in the present study may be important for production of local genetic differences between Arctic charr leks. Our results suggest that males with low reproductive success may enhance their fitness by means other than dispersal, e.g., by associating with relatives to increase inclusive fitness. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Zoology 82 8 1278 1284 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Figenschou, L Folstad, I Liljedal, S Lek fidelity of male Arctic charr |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
For males, the reproductive advantage of joining a lek varies among leks; consequently, males should join the lek yielding the highest fitness. When males experience low reproductive opportunities at one lek, it may pay to move to another. By observing tagged male Arctic charr (Salvelinus alpinus L., 1758) at three different lek sites within one lake, we examined whether males moved between leks. Some movement was observed, especially between closely located leks, but fish length and spermatocrit, traits indicative of reproductive success, were unrelated to whether or not individuals moved between leks. Little to no movement was observed between more distantly separated leks, even though the costs associated with movements across the relatively short distances between these leks should be low. This suggests that individuals, rather than moving from leks where they have low reproductive success, are relatively stationary. The lek fidelity documented in the present study may be important for production of local genetic differences between Arctic charr leks. Our results suggest that males with low reproductive success may enhance their fitness by means other than dispersal, e.g., by associating with relatives to increase inclusive fitness. |
format |
Article in Journal/Newspaper |
author |
Figenschou, L Folstad, I Liljedal, S |
author_facet |
Figenschou, L Folstad, I Liljedal, S |
author_sort |
Figenschou, L |
title |
Lek fidelity of male Arctic charr |
title_short |
Lek fidelity of male Arctic charr |
title_full |
Lek fidelity of male Arctic charr |
title_fullStr |
Lek fidelity of male Arctic charr |
title_full_unstemmed |
Lek fidelity of male Arctic charr |
title_sort |
lek fidelity of male arctic charr |
publisher |
Canadian Science Publishing |
publishDate |
2004 |
url |
http://dx.doi.org/10.1139/z04-106 http://www.nrcresearchpress.com/doi/pdf/10.1139/z04-106 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Canadian Journal of Zoology volume 82, issue 8, page 1278-1284 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z04-106 |
container_title |
Canadian Journal of Zoology |
container_volume |
82 |
container_issue |
8 |
container_start_page |
1278 |
op_container_end_page |
1284 |
_version_ |
1785560008262418432 |