Multiple and extra-pair mating in a pair-living hermaphrodite, the intertidal limpet Siphonaria gigas

Schaefer, Jessica; Christy, John; Marko, Peter

doi:10.25338/b8h038

2019

DOI: 10.25338/b8h038

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Multiple and extra-pair mating in a pair-living hermaphrodite, the intertidal limpet Siphonaria gigas

Jessica Schaefer,

John Christy,

Peter Marko

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2020

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Multiple and Extra-Pair Mating in a Pair-Living Hermaphrodite, the Intertidal LimpetSiphonaria gigas

Schaefer

Christy

Marko

2020

Integrative Organismal Biology

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Synopsis Pair-living is a common social system found across animal taxa, and the relationship between pair-living and reproduction varies greatly among species. Siphonaria gigas, hermaphroditic pulmonate gastropods, often live in pairs in the rocky intertidal zone of the tropical Eastern Pacific. Combining genetic parentage analysis using four polymorphic microsatellite loci with behavioral observations from a 10-week field study, we provide the first description of the mating system of a Siphonaria species incorporating genetic data. S. gigas mated both within-pair and extra-pair and three out of four paired S. gigas individuals produced egg masses with extra-pair paternity. Multiple paternity was detected, but at a relatively low frequency (19% of egg masses) compared to other marine gastropods. Behavioral data indicate one potential advantage of pair-living: paired S. gigas produced almost twice as many egg masses as their solitary counterparts over four reproductive cycles. These observations, together with constraints on the movement of S. gigas, suggest that pairing may ensure mate access and increase reproductive success.

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Multiple and Extra-Pair Mating in a Pair-Living Hermaphrodite, the Intertidal LimpetSiphonaria gigas

Schaefer

Christy

Marko

2020

Integrative Organismal Biology

Self Cite

View full text Add to dashboard Cite

show abstract

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Multiple and extra-pair mating in a pair-living hermaphrodite, the intertidal limpet Siphonaria gigas

Cited by 1 publication

References 1 publication

Multiple and Extra-Pair Mating in a Pair-Living Hermaphrodite, the Intertidal LimpetSiphonaria gigas

Multiple and Extra-Pair Mating in a Pair-Living Hermaphrodite, the Intertidal LimpetSiphonaria gigas

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