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Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones)

The study of mating choices often focuses on correlates of traits to the overall outcome of a mating interaction. However, mating interactions can proceed through a series of stages, with opportunities for assessment at each stage. We compared whether male or female size predicted mating interaction...

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Detalles Bibliográficos
Autores principales: Fowler-Finn, Kasey D., Boyer, Sarah L., Ikagawa, Raine, Jeffries, Timothy, Kahn, Penelope C., Larsen, Eva M., Lee, Daniel, Smeester, Morgan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6022863/
https://www.ncbi.nlm.nih.gov/pubmed/29904015
http://dx.doi.org/10.3390/biology7020036
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author Fowler-Finn, Kasey D.
Boyer, Sarah L.
Ikagawa, Raine
Jeffries, Timothy
Kahn, Penelope C.
Larsen, Eva M.
Lee, Daniel
Smeester, Morgan
author_facet Fowler-Finn, Kasey D.
Boyer, Sarah L.
Ikagawa, Raine
Jeffries, Timothy
Kahn, Penelope C.
Larsen, Eva M.
Lee, Daniel
Smeester, Morgan
author_sort Fowler-Finn, Kasey D.
collection PubMed
description The study of mating choices often focuses on correlates of traits to the overall outcome of a mating interaction. However, mating interactions can proceed through a series of stages, with opportunities for assessment at each stage. We compared whether male or female size predicted mating interaction outcome across several stages of mating in five species of North American leiobunine harvestmen (commonly known as daddy longlegs). Leiobunine harvestmen have been previously shown to exhibit incredible morphological diversity consistent with a spectrum of male–female antagonism. Across all of the species, we found a general progression of female size predicting the outcome (success and timing) of early stages of interactions, and male size or male size relative to female size predicting the outcome and timing of later stages of interactions. We also found that size was not a strong predictor of outcome in the two species on the lower end of the antagonism spectrum. The variation in how female and male size predicted outcomes across species and stages of mating suggests that multiple mechanisms may operate to shape mating dynamics within and across species. Given the close relatedness of the species studied, the patterns we uncovered suggest a rapid evolution of the traits and processes predicting the outcome of mating interactions.
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spelling pubmed-60228632018-07-02 Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones) Fowler-Finn, Kasey D. Boyer, Sarah L. Ikagawa, Raine Jeffries, Timothy Kahn, Penelope C. Larsen, Eva M. Lee, Daniel Smeester, Morgan Biology (Basel) Article The study of mating choices often focuses on correlates of traits to the overall outcome of a mating interaction. However, mating interactions can proceed through a series of stages, with opportunities for assessment at each stage. We compared whether male or female size predicted mating interaction outcome across several stages of mating in five species of North American leiobunine harvestmen (commonly known as daddy longlegs). Leiobunine harvestmen have been previously shown to exhibit incredible morphological diversity consistent with a spectrum of male–female antagonism. Across all of the species, we found a general progression of female size predicting the outcome (success and timing) of early stages of interactions, and male size or male size relative to female size predicting the outcome and timing of later stages of interactions. We also found that size was not a strong predictor of outcome in the two species on the lower end of the antagonism spectrum. The variation in how female and male size predicted outcomes across species and stages of mating suggests that multiple mechanisms may operate to shape mating dynamics within and across species. Given the close relatedness of the species studied, the patterns we uncovered suggest a rapid evolution of the traits and processes predicting the outcome of mating interactions. MDPI 2018-06-14 /pmc/articles/PMC6022863/ /pubmed/29904015 http://dx.doi.org/10.3390/biology7020036 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fowler-Finn, Kasey D.
Boyer, Sarah L.
Ikagawa, Raine
Jeffries, Timothy
Kahn, Penelope C.
Larsen, Eva M.
Lee, Daniel
Smeester, Morgan
Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones)
title Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones)
title_full Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones)
title_fullStr Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones)
title_full_unstemmed Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones)
title_short Variation in Mating Dynamics across Five Species of Leiobunine Harvestmen (Arachnida: Opliones)
title_sort variation in mating dynamics across five species of leiobunine harvestmen (arachnida: opliones)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6022863/
https://www.ncbi.nlm.nih.gov/pubmed/29904015
http://dx.doi.org/10.3390/biology7020036
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