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

Author:

Schaefer Jessica L B1ORCID,Christy John H2,Marko Peter B1

Affiliation:

1. Department of Biology, University of Hawai‘i at Mānoa, 2538 McCarthy Mall, Edmondson Hall 216, Honolulu, HI 96822, USA

2. Smithsonian Tropical Research Institute, Balboa, Ancón, Apartado 0843-03092, República de Panamá

Abstract

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.

Funder

Smithsonian Tropical Research Institute

University of Hawai‘i

UH Mānoa Graduate Student Organization

National Academy of Sciences

Scientific Research Society

Publisher

Oxford University Press (OUP)

Subject

Plant Science,Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. What is a pair bond?;Hormones and Behavior;2021-11

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