FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1570249412> ?p ?o ?g. }

• W1570249412 abstract "Evolutionary theory suggests that post-copulatory sexual selection plays an important role in the evolution of reproductive traits of sexually reproducing animals. But despite its alleged universality empirical evidence is scarce for sexual selection operating in simultaneous hermaphrodites. I therefore investigated the potential for post-copulatory sexual selection in such an organism. Sexual selection can also act on phenotypic plasticity of traits. Flexible adjustments of an individual’s own sex allocation have been proposed to be a major advantage of hermaphrodites compared to separate-sexed organisms. The simultaneous hermaphrodite M. lignano flexibly adjusts its sex allocation to group size. I aimed to narrow down the cues on which this flatworm relies to make this adjustment, and I measured the costs of such phenotypically plastic responses to group size. I tested for mate limitation in a natural population of this outcrossing hermaphrodite as one possibile condition where simultaneous hermaphroditism is advantageous. In a double mating experiment I revealed genetic variation in paternity success and in five traits. One of them, mating rate, significantly predicted paternity success. This trait has recently been shown to be phenotypically plastic. I here demonstrate that it also exhibits genetic variation. Hence, it might be subjected to sexual selection. The findings of multiple paternity and genetic variation in paternity success clearly suggest that there is an opportunity for sexual selection in this simultaneous hermaphrodite. I discuss possible mechanisms of sexual selection (sperm competition, female bias in favour of one sperm donor) and random paternity skews that may underlie the paternity patterns observed in this species. Further results suggest that the well-documented phenotypically plastic response in sex allocation was based on indirect cues for sperm competition such as tactile cues of group size rather than direct cues such as assessment of the partner’s mating status. I also demonstrate that this response incurred significant production costs of phenotypic plasticity. However, since the magnitude of these costs was relatively low, I argue that flexible adjustments of sex allocation may still convey a net benefit to simultaneous hermaphrodites. Mate availability did not appear to seriously limit female fitness in a natural habitat of M. lignano. This is consistent with classical sexual selection theory, originally developed for separate-sexed species. Specifically, one aspect of Bateman’s principle states that female fecundity is not limited by the availability of mating partners but by resources available for egg production, which seems to apply to this simultaneous hermaphrodite. I conclude that sexual selection occurs in this simultaneous hermaphrodite. I rule out two presumptive cues for the phenotypically plastic response to group size and demonstrate production costs of this plasticity. Finally, I judge the significance of phenotypic plasticity and mate availability for the evolution of simultaneous hermaphroditism." @default.
• W1570249412 created "2016-06-24" @default.
• W1570249412 creator A5079835977 @default.
• W1570249412 date "2013-01-01" @default.
• W1570249412 modified "2023-09-24" @default.
• W1570249412 title "Impacts of sperm competition on mating behaviour and life history traits in a simultaneous hermaphrodite" @default.
• W1570249412 cites W139690843 @default.
• W1570249412 cites W1482365006 @default.
• W1570249412 cites W1490411889 @default.
• W1570249412 cites W1505698969 @default.
• W1570249412 cites W1512460603 @default.
• W1570249412 cites W1518897246 @default.
• W1570249412 cites W1519475636 @default.
• W1570249412 cites W1550622743 @default.
• W1570249412 cites W1577941315 @default.
• W1570249412 cites W1605862216 @default.
• W1570249412 cites W1826922928 @default.
• W1570249412 cites W1863440143 @default.
• W1570249412 cites W1946069141 @default.
• W1570249412 cites W1963762858 @default.
• W1570249412 cites W1964255583 @default.
• W1570249412 cites W1965112930 @default.
• W1570249412 cites W1965962964 @default.
• W1570249412 cites W1967567937 @default.
• W1570249412 cites W1968386022 @default.
• W1570249412 cites W1975595302 @default.
• W1570249412 cites W1978031195 @default.
• W1570249412 cites W1982319934 @default.
• W1570249412 cites W1985177783 @default.
• W1570249412 cites W1985204889 @default.
• W1570249412 cites W1985230946 @default.
• W1570249412 cites W1989343101 @default.
• W1570249412 cites W1990621680 @default.
• W1570249412 cites W1990631587 @default.
• W1570249412 cites W1991065671 @default.
• W1570249412 cites W1995180121 @default.
• W1570249412 cites W1996018742 @default.
• W1570249412 cites W1997966110 @default.
• W1570249412 cites W2001077431 @default.
• W1570249412 cites W2001574712 @default.
• W1570249412 cites W2002603454 @default.
• W1570249412 cites W2002652493 @default.
• W1570249412 cites W2003384811 @default.
• W1570249412 cites W2004778468 @default.
• W1570249412 cites W2005217940 @default.
• W1570249412 cites W2005526676 @default.
• W1570249412 cites W2013563015 @default.
• W1570249412 cites W2015635519 @default.
• W1570249412 cites W2019498287 @default.
• W1570249412 cites W2020704909 @default.
• W1570249412 cites W2022705114 @default.
• W1570249412 cites W2023982142 @default.
• W1570249412 cites W2026350873 @default.
• W1570249412 cites W2027370398 @default.
• W1570249412 cites W2028792807 @default.
• W1570249412 cites W2031055468 @default.
• W1570249412 cites W2034063593 @default.
• W1570249412 cites W2034930521 @default.
• W1570249412 cites W2034979072 @default.
• W1570249412 cites W2042698951 @default.
• W1570249412 cites W2043081789 @default.
• W1570249412 cites W2045386482 @default.
• W1570249412 cites W2048041001 @default.
• W1570249412 cites W2048957126 @default.
• W1570249412 cites W2053058578 @default.
• W1570249412 cites W2053708138 @default.
• W1570249412 cites W2054506250 @default.
• W1570249412 cites W2055014072 @default.
• W1570249412 cites W2057618527 @default.
• W1570249412 cites W2057843163 @default.
• W1570249412 cites W2059260578 @default.
• W1570249412 cites W2060966011 @default.
• W1570249412 cites W2066967610 @default.
• W1570249412 cites W2071071826 @default.
• W1570249412 cites W2073830372 @default.
• W1570249412 cites W2076712945 @default.
• W1570249412 cites W2077120782 @default.
• W1570249412 cites W2078860489 @default.
• W1570249412 cites W2082706170 @default.
• W1570249412 cites W2083255653 @default.
• W1570249412 cites W2084392894 @default.
• W1570249412 cites W2086821928 @default.
• W1570249412 cites W2088493952 @default.
• W1570249412 cites W2088693873 @default.
• W1570249412 cites W2091945184 @default.
• W1570249412 cites W2093861948 @default.
• W1570249412 cites W2098544815 @default.
• W1570249412 cites W2100831836 @default.
• W1570249412 cites W2104548816 @default.
• W1570249412 cites W2104891575 @default.
• W1570249412 cites W2107592593 @default.
• W1570249412 cites W2108009239 @default.
• W1570249412 cites W2108350169 @default.
• W1570249412 cites W2111394148 @default.
• W1570249412 cites W2112050904 @default.
• W1570249412 cites W2112814753 @default.
• W1570249412 cites W2113155026 @default.
• W1570249412 cites W2115377075 @default.
• W1570249412 cites W2116173136 @default.
• W1570249412 cites W2118215630 @default.

• next