What is indirect cryptic female choice? theoretical considerations and an example from a promiscuous earwig

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)

Abstract

Cryptic female choice (CFC) does not necessarily involve discriminative responses in the female nervous system to sperm from multiple mates. Even without any active sperm-choice mechanisms, polyandrous females can gain genetic benefits by having an arena in which genetically superior sperm are “automatically ” sorted. In this chapter, possible mechanisms in this CFC category, termed “indirect CFC, ” are reviewed. A simple theoretical model is developed to examine the hypothesis that females obtain genetic benefits by allowing only partial displacement of stored sperm by subsequent mates. The model predicts that such restricted sperm displacement automatically grants genetic benefits when genetically superior males copulate more times per encounter with the female than less fit males. The promiscuous earwig species, Euborellia plebeja, provides an empirical example of this type of indirect CFC. The elongated female sperm-storage organs allow only partial removal and displacement of stored sperm by shorter male genitalia, resulting in a 20 % gain in paternity per mating. In staged mating trials, large males dominated male-male competition for burrows housing females, resulting in a significant increase in paternity by repeated matings with the same female. A numerical simulation based on this mating pattern showed that restricted sperm displacement (~20 % per mating) is optimal for females to accumulate sperm from larger males. Given that male body size is heritable, females were estimated to gain a 1.4 % increase in their sons’ mating success as a genetic benefit. Advantages and disadvantages of indirect CFC are discussed and compared with precopulatory mate choice and direct CFC.

Original languageEnglish
Title of host publicationCryptic Female Choice in Arthropods: Patterns, Mechanisms and Prospects
PublisherSpringer International Publishing
Pages255-283
Number of pages29
ISBN (Print)9783319178943, 9783319178936
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

sperm
Spermatozoa
spermatozoa
paternity
earwig
Euborellia
Male Genitalia
storage organs
Organized Financing
mating success
mate choice
Body Size
nervous system
male genitalia
mating behavior
burrow
burrows
Nervous System
genetic improvement
body size

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Environmental Science(all)

Cite this

Kamimura, Y. (2015). What is indirect cryptic female choice? theoretical considerations and an example from a promiscuous earwig. In Cryptic Female Choice in Arthropods: Patterns, Mechanisms and Prospects (pp. 255-283). Springer International Publishing. https://doi.org/10.1007/978-3-319-17894-3_10

What is indirect cryptic female choice? theoretical considerations and an example from a promiscuous earwig. / Kamimura, Yoshitaka.

Cryptic Female Choice in Arthropods: Patterns, Mechanisms and Prospects. Springer International Publishing, 2015. p. 255-283.

Research output: Chapter in Book/Report/Conference proceedingChapter

Kamimura, Y 2015, What is indirect cryptic female choice? theoretical considerations and an example from a promiscuous earwig. in Cryptic Female Choice in Arthropods: Patterns, Mechanisms and Prospects. Springer International Publishing, pp. 255-283. https://doi.org/10.1007/978-3-319-17894-3_10
Kamimura Y. What is indirect cryptic female choice? theoretical considerations and an example from a promiscuous earwig. In Cryptic Female Choice in Arthropods: Patterns, Mechanisms and Prospects. Springer International Publishing. 2015. p. 255-283 https://doi.org/10.1007/978-3-319-17894-3_10
Kamimura, Yoshitaka. / What is indirect cryptic female choice? theoretical considerations and an example from a promiscuous earwig. Cryptic Female Choice in Arthropods: Patterns, Mechanisms and Prospects. Springer International Publishing, 2015. pp. 255-283
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