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Traumatic mating may offer fitness benefits for female sea slugs

Date:
August 22, 2012
Source:
Public Library of Science
Summary:
Female sea slugs mate more frequently than required to produce offspring, despite the highly traumatic and biologically costly nature of their copulation.
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Female sea slugs mate more frequently than required to produce offspring, despite the highly traumatic and biologically costly nature of their copulation, as reported Aug. 22 in the open access journal PLOS ONE.

The authors of the study, led by Rolanda Lange of the University of Tuebingen in Germany, investigated the mating behavior of a simultaneously hermaphroditic species of sea slug that mates via an extravagant ritual that involves a syringe-like penile appendage that stabs the partner to inject prostate fluids and sperm.

Surprisingly, the researchers found that the sea slugs mate more frequently than minimally required for offspring production and that both elevated and reduced mating rates are detrimental to female fitness, suggesting that there may be some additional, indirect benefits to this traumatic mating beyond reproduction.


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Journal Reference:

  1. Rolanda Lange, Tobias Gerlach, Joscha Beninde, Johanna Werminghausen, Verena Reichel, Nils Anthes. Female Fitness Optimum at Intermediate Mating Rates under Traumatic Mating. PLoS ONE, 2012; 7 (8): e43234 DOI: 10.1371/journal.pone.0043234

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Public Library of Science. "Traumatic mating may offer fitness benefits for female sea slugs." ScienceDaily. ScienceDaily, 22 August 2012. <www.sciencedaily.com/releases/2012/08/120822181352.htm>.
Public Library of Science. (2012, August 22). Traumatic mating may offer fitness benefits for female sea slugs. ScienceDaily. Retrieved October 5, 2024 from www.sciencedaily.com/releases/2012/08/120822181352.htm
Public Library of Science. "Traumatic mating may offer fitness benefits for female sea slugs." ScienceDaily. www.sciencedaily.com/releases/2012/08/120822181352.htm (accessed October 5, 2024).

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