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Male size, not female preferences influence female reproductive success in a poeciliid fish (Poecilia latipinna)

  • Objective We investigated the potential role of indirect benefits for female mate preferences in a highly promiscuous species of live-bearing fishes, the sailfin molly Poecilia latipinna using an integrative approach that combines methods from animal behavior, life-history evolution, and genetics. Males of this species solely contribute sperm for reproduction, and consequently females do not receive any direct benefits. Despite this, females typically show clear mate preferences. It has been suggested that females can increase their reproductive success through indirect benefits from choosing males of higher quality. Results Although preferences for large body size have been recorded as an honest signal for genetic quality, this particular study resulted in female preference being unaffected by male body size. Nonetheless, larger males did sire more offspring, but with no effect on offspring quality. This study presents a methodical innovation by combining preference testing with life history measurements—such as theObjective We investigated the potential role of indirect benefits for female mate preferences in a highly promiscuous species of live-bearing fishes, the sailfin molly Poecilia latipinna using an integrative approach that combines methods from animal behavior, life-history evolution, and genetics. Males of this species solely contribute sperm for reproduction, and consequently females do not receive any direct benefits. Despite this, females typically show clear mate preferences. It has been suggested that females can increase their reproductive success through indirect benefits from choosing males of higher quality. Results Although preferences for large body size have been recorded as an honest signal for genetic quality, this particular study resulted in female preference being unaffected by male body size. Nonetheless, larger males did sire more offspring, but with no effect on offspring quality. This study presents a methodical innovation by combining preference testing with life history measurements—such as the determination of the dry weight of fish embryos—and paternity analyses on single fish embryos.show moreshow less

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Metadaten
Author details:Ulrike SchererORCiD, Ralph TiedemannORCiDGND, Ingo SchluppORCiD
DOI:https://doi.org/10.1186/s13104-018-3487-2
ISSN:1756-0500
Title of parent work (English):BMC Research Notes
Subtitle (English):a combined behavioural/genetic approach
Publisher:Biomed Central
Place of publishing:London
Publication type:Article
Language:English
Date of first publication:2018/06/08
Publication year:2018
Release date:2018/10/09
Tag:Fitness; Life history; Mate choice; Microsatellite analysis; Offspring weight; Paternity analysis; Sailfin molly; Sexual selection
Volume:11
Issue:364
First page:1
Last Page:5
Funding institution:Universität Potsdam, Publikationsfonds
Funding number:PA 2018_32
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie
DDC classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Peer review:Referiert
Grantor:Publikationsfonds der Universität Potsdam
Publishing method:Open Access
License (German):License LogoCC-BY - Namensnennung 4.0 International
External remark:Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 468
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