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Article: Size-Dependent Male Mate Preference and its Association with Size-Assortative Mating in a Mangrove Snail, Littoraria ardouiniana

TitleSize-Dependent Male Mate Preference and its Association with Size-Assortative Mating in a Mangrove Snail, Littoraria ardouiniana
Authors
Issue Date2014
Citation
Ethology, 2014, v. 120 n. 10, p. 995-1002 How to Cite?
AbstractIn many animals, body size plays a crucial role in mating success in the context of competition and preference for mates. Increasing evidence has shown that male mate preference can be size-dependent and, therefore, an important driver of size-assortative mating. To test this theory, mate choice experiments were performed during the three consecutive stages of mating behaviour, namely trail following, shell mounting and copulation, in the dioecious mangrove snail, Littoraria ardouiniana. These experiments identified two possible forms of size-dependent male mate preference which could contribute to the formation of size-assortative mating in these snails. Firstly, whereas small males were unselective, large males were selective and preferred to follow mucus trails laid by large females. Alternatively, the results can also be interpreted as all males were selective and adopted a mating strategy of selecting females similar to, or larger than, their own sizes. Both small and large males also copulated for longer with large than with small females, and this was more pronounced in large males. When two males encountered a female, they engaged in physical aggression, with the larger male excluding the smaller male from copulating with the female. This study, therefore, demonstrated that size-dependent male mate preference may, along with male–male competition, play an important role in driving size-assortative mating in these mangrove snails, and this may also be the case in other species that exhibit male mate choice.
Persistent Identifierhttp://hdl.handle.net/10722/206858

 

DC FieldValueLanguage
dc.contributor.authorNg, PTen_US
dc.contributor.authorWilliams, GAen_US
dc.date.accessioned2014-12-02T10:41:09Z-
dc.date.available2014-12-02T10:41:09Z-
dc.date.issued2014en_US
dc.identifier.citationEthology, 2014, v. 120 n. 10, p. 995-1002en_US
dc.identifier.urihttp://hdl.handle.net/10722/206858-
dc.description.abstractIn many animals, body size plays a crucial role in mating success in the context of competition and preference for mates. Increasing evidence has shown that male mate preference can be size-dependent and, therefore, an important driver of size-assortative mating. To test this theory, mate choice experiments were performed during the three consecutive stages of mating behaviour, namely trail following, shell mounting and copulation, in the dioecious mangrove snail, Littoraria ardouiniana. These experiments identified two possible forms of size-dependent male mate preference which could contribute to the formation of size-assortative mating in these snails. Firstly, whereas small males were unselective, large males were selective and preferred to follow mucus trails laid by large females. Alternatively, the results can also be interpreted as all males were selective and adopted a mating strategy of selecting females similar to, or larger than, their own sizes. Both small and large males also copulated for longer with large than with small females, and this was more pronounced in large males. When two males encountered a female, they engaged in physical aggression, with the larger male excluding the smaller male from copulating with the female. This study, therefore, demonstrated that size-dependent male mate preference may, along with male–male competition, play an important role in driving size-assortative mating in these mangrove snails, and this may also be the case in other species that exhibit male mate choice.en_US
dc.languageengen_US
dc.relation.ispartofEthologyen_US
dc.titleSize-Dependent Male Mate Preference and its Association with Size-Assortative Mating in a Mangrove Snail, Littoraria ardouinianaen_US
dc.typeArticleen_US
dc.identifier.emailNg, PT: tptng@hku.hken_US
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_US
dc.identifier.authorityWilliams, GA=rp00804en_US
dc.identifier.doi10.1111/eth.12271en_US
dc.identifier.hkuros241420en_US
dc.identifier.volume120en_US
dc.identifier.spage995en_US
dc.identifier.epage1002en_US

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