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No evidence of size-assortative mating or sex-dependent trail following and temporal and spatial variation in sexual size dimorphism and sexual selection in Nerita yoldii.

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Title: No evidence of size-assortative mating or sex-dependent trail following and temporal and spatial variation in sexual size dimorphism and sexual selection in Nerita yoldii.
Authors: Crickenberger, S1 (AUTHOR), Lau, J W T2 (AUTHOR), Yeung, A C Y2 (AUTHOR), Cheng, M C F3 (AUTHOR), Tso, C H4 (AUTHOR), Chan, K Y K5 (AUTHOR), Hui, T Y6 (AUTHOR), Crane, C7 (AUTHOR), Stafford, R7 (AUTHOR), Williams, G A2 (AUTHOR)
Source: Journal of Molluscan Studies. Mar2026, Vol. 92 Issue 1, p1-10. 10p.
Subjects: Assortative mating, Sexual selection, Intertidal ecology, Gastropoda, Sexual dimorphism
Geographic Terms: Hong Kong (China)
Abstract: Size-assortative mating is a well-documented pattern in a wide diversity of animals, including marine gastropods. In most cases, positive assortative mating by size is due to males mating with larger, more fecund females, which is often mediated by males following female mucus trails in gastropods. Fecundity selection has been invoked to explain not only size-assortative mating but also sexual size dimorphism in most taxa studied to date. To widen the generality of these hypotheses, we tested for these patterns in the intertidal, dioecious gastropod Nerita yoldii across sites and years in Hong Kong. In N. yoldii , females were larger than males in most mating pairs, and size was generally a predictor of fecundity in females. There was, however, no evidence of size-assortative mating or sex-dependent mucus trail following. There was also no clear pattern of sexual selection, measured using sexual selection intensity, which varied between sites and years. Overall, the reproductive behaviour of N. yoldii was dependent on site and year and did not conform to the common patterns found in other marine gastropods. Evidence from this tropical nerite, therefore, suggests sexual selection should be considered as only one of several potential mechanisms underlying these common patterns. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Molluscan Studies is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 192698347
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: No evidence of size-assortative mating or sex-dependent trail following and temporal and spatial variation in sexual size dimorphism and sexual selection in Nerita yoldii.
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  Data: <searchLink fieldCode="AR" term="%22Crickenberger%2C+S%22">Crickenberger, S</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lau%2C+J+W+T%22">Lau, J W T</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yeung%2C+A+C+Y%22">Yeung, A C Y</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cheng%2C+M+C+F%22">Cheng, M C F</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tso%2C+C+H%22">Tso, C H</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chan%2C+K+Y+K%22">Chan, K Y K</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hui%2C+T+Y%22">Hui, T Y</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Crane%2C+C%22">Crane, C</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Stafford%2C+R%22">Stafford, R</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Williams%2C+G+A%22">Williams, G A</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Molluscan+Studies%22">Journal of Molluscan Studies</searchLink>. Mar2026, Vol. 92 Issue 1, p1-10. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Assortative+mating%22">Assortative mating</searchLink><br /><searchLink fieldCode="DE" term="%22Sexual+selection%22">Sexual selection</searchLink><br /><searchLink fieldCode="DE" term="%22Intertidal+ecology%22">Intertidal ecology</searchLink><br /><searchLink fieldCode="DE" term="%22Gastropoda%22">Gastropoda</searchLink><br /><searchLink fieldCode="DE" term="%22Sexual+dimorphism%22">Sexual dimorphism</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Hong+Kong+%28China%29%22">Hong Kong (China)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Size-assortative mating is a well-documented pattern in a wide diversity of animals, including marine gastropods. In most cases, positive assortative mating by size is due to males mating with larger, more fecund females, which is often mediated by males following female mucus trails in gastropods. Fecundity selection has been invoked to explain not only size-assortative mating but also sexual size dimorphism in most taxa studied to date. To widen the generality of these hypotheses, we tested for these patterns in the intertidal, dioecious gastropod Nerita yoldii across sites and years in Hong Kong. In N. yoldii , females were larger than males in most mating pairs, and size was generally a predictor of fecundity in females. There was, however, no evidence of size-assortative mating or sex-dependent mucus trail following. There was also no clear pattern of sexual selection, measured using sexual selection intensity, which varied between sites and years. Overall, the reproductive behaviour of N. yoldii was dependent on site and year and did not conform to the common patterns found in other marine gastropods. Evidence from this tropical nerite, therefore, suggests sexual selection should be considered as only one of several potential mechanisms underlying these common patterns. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Molluscan Studies is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1093/mollus/eyag002
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      – Code: eng
        Text: English
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        PageCount: 10
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      – SubjectFull: Assortative mating
        Type: general
      – SubjectFull: Sexual selection
        Type: general
      – SubjectFull: Intertidal ecology
        Type: general
      – SubjectFull: Gastropoda
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      – SubjectFull: Sexual dimorphism
        Type: general
      – SubjectFull: Hong Kong (China)
        Type: general
    Titles:
      – TitleFull: No evidence of size-assortative mating or sex-dependent trail following and temporal and spatial variation in sexual size dimorphism and sexual selection in Nerita yoldii.
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            – D: 01
              M: 03
              Text: Mar2026
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              Y: 2026
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