Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters
We studied characteristics of paired antlers, including types of asymmetry, from 1,501 Alaskan moose ( Alces alces gigas ). We observed no evidence of antisymmetry in moose antlers, but number of tines was greater on left than right antlers, indicating directional asymmetry. Absolute and relative fl...
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fthighwire:oai:open-archive.highwire.org:jmammal:82/3/814 2023-05-15T13:13:10+02:00 Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters Bowyer, R. Terry Stewart, Kelley M. Kie, John G. Gasaway, William C. 2001-08-17 00:00:00.0 text/html http://jmammal.oxfordjournals.org/cgi/content/short/82/3/814 https://doi.org/10.1093/jmammal/82.3.814 en eng Oxford University Press http://jmammal.oxfordjournals.org/cgi/content/short/82/3/814 http://dx.doi.org/10.1093/jmammal/82.3.814 Copyright (C) 2001, Oxford University Press Feature Articles TEXT 2001 fthighwire https://doi.org/10.1093/jmammal/82.3.814 2016-11-16T16:51:47Z We studied characteristics of paired antlers, including types of asymmetry, from 1,501 Alaskan moose ( Alces alces gigas ). We observed no evidence of antisymmetry in moose antlers, but number of tines was greater on left than right antlers, indicating directional asymmetry. Absolute and relative fluctuating asymmetry (FA) occurred for palm characteristics but not for beam circumference. Relative FA varied inversely with the overall size of antlers for attributes of the palm, which was expected for a secondary sexual characteristic. Smaller-antlered males exhibited greater FA than did larger-antlered moose in palm characteristics. Because large-antlered males, which mate most often among moose and other polygynous cervids, expressed the least relative FA, we hypothesize that this metric indicates quality of individual moose. Whether symmetry of antlers is related to antler breakage or honest advertisement or whether females select mates based on FA is unknown and deserves additional study. Text Alces alces HighWire Press (Stanford University) Journal of Mammalogy 82 3 814 824 |
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Feature Articles |
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Feature Articles Bowyer, R. Terry Stewart, Kelley M. Kie, John G. Gasaway, William C. Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters |
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Feature Articles |
description |
We studied characteristics of paired antlers, including types of asymmetry, from 1,501 Alaskan moose ( Alces alces gigas ). We observed no evidence of antisymmetry in moose antlers, but number of tines was greater on left than right antlers, indicating directional asymmetry. Absolute and relative fluctuating asymmetry (FA) occurred for palm characteristics but not for beam circumference. Relative FA varied inversely with the overall size of antlers for attributes of the palm, which was expected for a secondary sexual characteristic. Smaller-antlered males exhibited greater FA than did larger-antlered moose in palm characteristics. Because large-antlered males, which mate most often among moose and other polygynous cervids, expressed the least relative FA, we hypothesize that this metric indicates quality of individual moose. Whether symmetry of antlers is related to antler breakage or honest advertisement or whether females select mates based on FA is unknown and deserves additional study. |
format |
Text |
author |
Bowyer, R. Terry Stewart, Kelley M. Kie, John G. Gasaway, William C. |
author_facet |
Bowyer, R. Terry Stewart, Kelley M. Kie, John G. Gasaway, William C. |
author_sort |
Bowyer, R. Terry |
title |
Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters |
title_short |
Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters |
title_full |
Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters |
title_fullStr |
Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters |
title_full_unstemmed |
Fluctuating Asymmetry in Antlers of Alaskan Moose: Size Matters |
title_sort |
fluctuating asymmetry in antlers of alaskan moose: size matters |
publisher |
Oxford University Press |
publishDate |
2001 |
url |
http://jmammal.oxfordjournals.org/cgi/content/short/82/3/814 https://doi.org/10.1093/jmammal/82.3.814 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_relation |
http://jmammal.oxfordjournals.org/cgi/content/short/82/3/814 http://dx.doi.org/10.1093/jmammal/82.3.814 |
op_rights |
Copyright (C) 2001, Oxford University Press |
op_doi |
https://doi.org/10.1093/jmammal/82.3.814 |
container_title |
Journal of Mammalogy |
container_volume |
82 |
container_issue |
3 |
container_start_page |
814 |
op_container_end_page |
824 |
_version_ |
1766256457007759360 |