Cargando…
Mate choice decision rules: Trait synergisms and preference shifts
An important and understudied question in sexual selection is how females evaluate information from multiple secondary sexual traits (SSTs), particularly when expression of traits is phenotypically uncorrelated. We performed mate choice experiments on zebra finches (Taeniopygia guttata castanotis Go...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838072/ https://www.ncbi.nlm.nih.gov/pubmed/29531661 http://dx.doi.org/10.1002/ece3.3831 |
_version_ | 1783304177734123520 |
---|---|
author | Burley, Nancy Tyler Hamedani, Elnaz Symanski, Cole |
author_facet | Burley, Nancy Tyler Hamedani, Elnaz Symanski, Cole |
author_sort | Burley, Nancy Tyler |
collection | PubMed |
description | An important and understudied question in sexual selection is how females evaluate information from multiple secondary sexual traits (SSTs), particularly when expression of traits is phenotypically uncorrelated. We performed mate choice experiments on zebra finches (Taeniopygia guttata castanotis Gould) to evaluate two hypotheses: preference shifts (obstacles to choice using one trait increase chooser reliance on others) and trait synergisms (choice based on the sum/product of two or more independently varying traits). The first experiment, which employed males raised on diets that impact SST expression, supported the trait synergism hypothesis: overall, male pairing success was best predicted by synergisms involving beak color and cheek patch size. Results did not support the preference shift hypothesis. Results of a follow‐up experiment that included males reared on a single diet, and in which male beak color and cheek patch size were manipulated, were also consistent with the trait synergism hypothesis. Results have implications for understanding the long‐term persistence of multiple SSTs in populations and for the measurement of repeatability and heritability of mate preferences. |
format | Online Article Text |
id | pubmed-5838072 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-58380722018-03-12 Mate choice decision rules: Trait synergisms and preference shifts Burley, Nancy Tyler Hamedani, Elnaz Symanski, Cole Ecol Evol Original Research An important and understudied question in sexual selection is how females evaluate information from multiple secondary sexual traits (SSTs), particularly when expression of traits is phenotypically uncorrelated. We performed mate choice experiments on zebra finches (Taeniopygia guttata castanotis Gould) to evaluate two hypotheses: preference shifts (obstacles to choice using one trait increase chooser reliance on others) and trait synergisms (choice based on the sum/product of two or more independently varying traits). The first experiment, which employed males raised on diets that impact SST expression, supported the trait synergism hypothesis: overall, male pairing success was best predicted by synergisms involving beak color and cheek patch size. Results did not support the preference shift hypothesis. Results of a follow‐up experiment that included males reared on a single diet, and in which male beak color and cheek patch size were manipulated, were also consistent with the trait synergism hypothesis. Results have implications for understanding the long‐term persistence of multiple SSTs in populations and for the measurement of repeatability and heritability of mate preferences. John Wiley and Sons Inc. 2018-01-29 /pmc/articles/PMC5838072/ /pubmed/29531661 http://dx.doi.org/10.1002/ece3.3831 Text en © 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Burley, Nancy Tyler Hamedani, Elnaz Symanski, Cole Mate choice decision rules: Trait synergisms and preference shifts |
title | Mate choice decision rules: Trait synergisms and preference shifts |
title_full | Mate choice decision rules: Trait synergisms and preference shifts |
title_fullStr | Mate choice decision rules: Trait synergisms and preference shifts |
title_full_unstemmed | Mate choice decision rules: Trait synergisms and preference shifts |
title_short | Mate choice decision rules: Trait synergisms and preference shifts |
title_sort | mate choice decision rules: trait synergisms and preference shifts |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838072/ https://www.ncbi.nlm.nih.gov/pubmed/29531661 http://dx.doi.org/10.1002/ece3.3831 |
work_keys_str_mv | AT burleynancytyler matechoicedecisionrulestraitsynergismsandpreferenceshifts AT hamedanielnaz matechoicedecisionrulestraitsynergismsandpreferenceshifts AT symanskicole matechoicedecisionrulestraitsynergismsandpreferenceshifts |