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Who cares? Experimental attention biases provide new insights into a mammalian sexual signal

Constance Dubuc, William Allen Orcid Logo, Julie Cascio, D. Susie Lee, Dario Maestripieri, Megan Petersdorf, Sandra Winters, James P. Higham

Behavioral Ecology, Volume: 27, Issue: 1, Pages: 68 - 74

Swansea University Author: William Allen Orcid Logo

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DOI (Published version): 10.1093/beheco/arv117

Abstract

The effects of intrasexual and intersexual selection on male trait evolution can be difficult to disentangle, especially based on observational data. Male–male competition can limit an observer’s ability to identify the effect of female mate choice independently from sexual coercion. Here, we use an...

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Published in: Behavioral Ecology
ISSN: 1045-2249 1465-7279
Published: ISBE 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa27992
first_indexed 2016-05-17T01:36:52Z
last_indexed 2019-08-09T15:24:24Z
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spelling 2019-08-05T12:53:06.0514025 v2 27992 2016-05-16 Who cares? Experimental attention biases provide new insights into a mammalian sexual signal d6f01dd06d25fa8804daad86e251b8a5 0000-0003-2654-0438 William Allen William Allen true false 2016-05-16 BGPS The effects of intrasexual and intersexual selection on male trait evolution can be difficult to disentangle, especially based on observational data. Male–male competition can limit an observer’s ability to identify the effect of female mate choice independently from sexual coercion. Here, we use an experimental approach to explore whether an ornament, the red facial skin exhibited by male rhesus macaques (Macaca mulatta), might be involved in both female mate choice and male–male competition. We used a noninvasive experimental approach based on the looking time paradigm in a free-ranging setting, showing images of differently colored male faces to both adult females (N = 91) and males (N = 77), as well as to juveniles (N = 94) as a control. Results show that both adult females and males looked longer at dark red faces compared with pale pink ones. However, when considering the proportion of subjects that looked longer at dark red faces regardless of preference strength, only females showed a significant dark red bias. In contrast, juveniles did not show any preferences between stimuli, suggesting that the adult bias is not a consequence of the experimental design or related to a general sensory bias for red coloration among all age–sex classes. Collectively, these results support the role the ornament plays in female mate choice in this species and provide the first evidence that this ornament may play a role in male–male competition as well, despite a general lack of observational evidence for the latter effect to date. Journal Article Behavioral Ecology 27 1 68 74 ISBE 1045-2249 1465-7279 31 12 2016 2016-12-31 10.1093/beheco/arv117 https://beheco.oxfordjournals.org/content/27/1/68 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2019-08-05T12:53:06.0514025 2016-05-16T09:58:57.8888468 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Constance Dubuc 1 William Allen 0000-0003-2654-0438 2 Julie Cascio 3 D. Susie Lee 4 Dario Maestripieri 5 Megan Petersdorf 6 Sandra Winters 7 James P. Higham 8
title Who cares? Experimental attention biases provide new insights into a mammalian sexual signal
spellingShingle Who cares? Experimental attention biases provide new insights into a mammalian sexual signal
William Allen
title_short Who cares? Experimental attention biases provide new insights into a mammalian sexual signal
title_full Who cares? Experimental attention biases provide new insights into a mammalian sexual signal
title_fullStr Who cares? Experimental attention biases provide new insights into a mammalian sexual signal
title_full_unstemmed Who cares? Experimental attention biases provide new insights into a mammalian sexual signal
title_sort Who cares? Experimental attention biases provide new insights into a mammalian sexual signal
author_id_str_mv d6f01dd06d25fa8804daad86e251b8a5
author_id_fullname_str_mv d6f01dd06d25fa8804daad86e251b8a5_***_William Allen
author William Allen
author2 Constance Dubuc
William Allen
Julie Cascio
D. Susie Lee
Dario Maestripieri
Megan Petersdorf
Sandra Winters
James P. Higham
format Journal article
container_title Behavioral Ecology
container_volume 27
container_issue 1
container_start_page 68
publishDate 2016
institution Swansea University
issn 1045-2249
1465-7279
doi_str_mv 10.1093/beheco/arv117
publisher ISBE
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url https://beheco.oxfordjournals.org/content/27/1/68
document_store_str 0
active_str 0
description The effects of intrasexual and intersexual selection on male trait evolution can be difficult to disentangle, especially based on observational data. Male–male competition can limit an observer’s ability to identify the effect of female mate choice independently from sexual coercion. Here, we use an experimental approach to explore whether an ornament, the red facial skin exhibited by male rhesus macaques (Macaca mulatta), might be involved in both female mate choice and male–male competition. We used a noninvasive experimental approach based on the looking time paradigm in a free-ranging setting, showing images of differently colored male faces to both adult females (N = 91) and males (N = 77), as well as to juveniles (N = 94) as a control. Results show that both adult females and males looked longer at dark red faces compared with pale pink ones. However, when considering the proportion of subjects that looked longer at dark red faces regardless of preference strength, only females showed a significant dark red bias. In contrast, juveniles did not show any preferences between stimuli, suggesting that the adult bias is not a consequence of the experimental design or related to a general sensory bias for red coloration among all age–sex classes. Collectively, these results support the role the ornament plays in female mate choice in this species and provide the first evidence that this ornament may play a role in male–male competition as well, despite a general lack of observational evidence for the latter effect to date.
published_date 2016-12-31T06:53:26Z
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