A mother’s legacy: the strength of maternal effects in animal populations

Moore, Michael P.; Whiteman, Howard H.; Martin, Ryan A.

doi:10.1111/ele.13351

Cited by 135 publications

(162 citation statements)

References 88 publications

(158 reference statements)

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“…Maternal effects may translate environmental cues from the mother to the offspring for example via maternally transferred hormones (hereafter 'maternal hormones'), potentially increasing offspring survival in the predicted conditions (adaptive maternal effects, 1,[2][3][4]. Maternal hormone-mediated effects have been recently highlighted as a potential mechanism and source of phenotypic plasticity to respond to changing climate (5)(6)(7), yet empirical evidence is scarce.…”

Section: Introductionmentioning

confidence: 99%

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Sarraude

Cossin-Sevrin

et al. 2020

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Maternal effects via hormonal transfer from the mother to the offspring provide a tool to translate environmental cues to the offspring. Experimental manipulations of maternally transferred hormones have yielded increasingly contradictory results, which may be explained by environment-dependent effects of hormones. Yet context-dependent effects have rarely been experimentally tested. We therefore studied whether maternally transferred thyroid hormones (THs) exert context-dependent effects on offspring survival and physiology by manipulating both egg TH levels and post-hatching nest temperature in wild pied flycatchers (Ficedula hypoleuca) using a full factorial design. We found no clear evidence for context-dependent effects of prenatal THs related to postnatal temperature on growth, survival and potential underlying physiological responses (plasma TH levels, oxidative stress and mitochondrial density). We conclude that future studies should test for other key environmental conditions, such as food availability, to understand potential context-dependent effects of maternally transmitted hormones on offspring, and their role in adapting to changing environments.

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Section: Introductionmentioning

confidence: 99%

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Sarraude

Cossin-Sevrin

et al. 2020

Preprint

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“…This implies that the observed lower reproductive performance, as measured after one generation of common garden, must originate from persisting intergenerational plasticity rather than from genetic evolution. A recent meta-analysis indeed demonstrated that maternal effects are an influential source of phenotypic variation across the tree of life (Moore, Whiteman and Martin, 2019).…”

Section: Discussionmentioning

confidence: 99%

Life history and dispersal timing evolve in response to metapopulation connectedness

Masier

Bonte

2018

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3Loss of habitat connectivity is a well-known threat to biodiversity and metapopulation 4 persistence and anticipated to strongly affect evolutionary dynamics. While selection is 5 typically expected to act on dispersal-related traits that are expressed at the metapopulation-6 level, demographic changes in complex spatial networks may cause life histories to diverge 7 between local patches as well. However, the exact consequences of reduced connectedness on 8 life-history traits have never been quantified in detail. 9 We used experimental metapopulations of two-spotted spider mites to investigate how 10 connectedness loss affects trait evolution. Mites were introduced in spatial networks with 11 different levels of connectedness among local patches. In order to separate processes of local 12 and metapopulation-level selection, we implemented a randomization treatment by 13 redistributing mites across all local patches of certain metapopulations. 14 A decreased metapopulation connectedness selected for increased starvation resistance and 15 delayed dispersal timing. Reshuffling did not alter any of these evolutionary processes, 16 indicating that metapopulation-level selection was prominent. Intrinsic growth rates were, 17 however, systematically lower in individuals that originated from the most connected local 18 patch. Because this pattern was maintained under reshuffling, fast epigenetic evolution must 19 have been acting as well. 20 We thus demonstrate selection on multiple traits following connectedness loss related to 21 population growth rate and dispersal, but not dispersal rate per se. We attribute these 22 evolutionary dynamics to feedbacks between costs of dispersal and spatial demographic 23 variation. With longer dispersal, starvation resistance improved, possibly to face longer periods 24 2 in the matrix without resources; at the same time, lower dispersal costs translated into a quicker 25 decision to disperse as the net loss/gain ratio was more favourable. 26Our results demonstrate the need to incorporate multivariate trait evolution at multiple spatial 27 scales to understand eco-evolutionary dynamics in metapopulations. 28 65 2012). It can be assumed that connectedness loss mostly influences the costs of the transfer 66 phase, thereby imposing selection by lowering departure rates (Bonte et al., 2003). Evolutionary 67 adaptations to reduce costs of the other dispersal phases may, however, be prominent as well 68 and result in dispersal syndromes (Clobert et al., 2012). Evolutionary changes in (pre-) 69 departure behaviours (Derr, Aldent and Dinglet, 1981; Bell et al., 2005; Cañete et al., 2007), 70 dispersal timing (Lakovic, Poethke and Hovestadt, 2015), movement (Korb and Linsenmair, 71 2002; Baguette and Van Dyck, 2007) and post-settlement strategies (Vessby and Wiktelius, 72 2003; Hansson, Bensch and Hasselquist, 2004) in response to altered habitat connectedness are 73 becoming well-documented. Because interactions and/or trade-offs between two or more of 74 these traits are also...

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“…Maternal effects are the non-genetic influences of a mother on her progeny and are thought to 36 be adaptive (Moore et al, 2019;Mousseau and Fox, 1998;Yin et al, 2019). Maternal 37 hormones transferred to the next generation are a potential prenatal pathway for mothers to 38 shape their offspring phenotype (Groothuis et al, 2005;Groothuis et al, 2019;Ruuskanen 39 and Hsu, 2018, 20).…”

Section: Introduction 35mentioning

confidence: 99%

Testing different forms of regulation of yolk thyroid hormone transfer in pied flycatchers

Sarraude

Hsu

Groothuis

et al. 2020

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statement: Thyroid hormones have been overlooked in the context of hormone-15 mediated maternal effects. We found that mothers may regulate yolk thyroid hormone transfer 16 by regulating the conversion of the active form of the hormone. 17 Abstract 18Hormones transferred from mothers to their offspring are considered a maternal tool to 19 prepare progeny for expected environmental conditions, increasing maternal fitness. To 20 flexibly influence offspring, mothers should be able to transmit the hormonal signals 21 independent of their own hormonal status. However, the ability to regulate hormone transfer 22 to the next generation is under debate. We studied the transfer of thyroid hormones (THs) to 23 eggs in a bird model. We elevated thyroxine (T 4, the prohormone for the biological active 24 triiodothyronine, T 3 ) during egg-laying using T 4 implants on females of a wild population of 25 pied flycatchers (Ficedula hypoleuca), and measured plasma and yolk T 4 and T 3 as a 26 response. To our knowledge, studies that manipulated a prohormone and measured the change 27 in its active metabolites have rarely been conducted. We found an increase in plasma and yolk 28 T 4 and no change in T 3 concentrations leading to a similar decrease in yolk T 3 /T 4 ratio in 29 response to the T 4 treatment in plasma and yolk. This suggests that mothers are able to 30 regulate the conversion of T 4 in T 3 to avoid potential costs of elevated exposure to the active 31 hormone to herself and to her progeny. Finally, contrary to our predictions, we found no 32 evidence of regulatory mechanisms at the follicle level, which is essential for independent 33 regulation of yolk hormone transfer.

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A mother’s legacy: the strength of maternal effects in animal populations

Cited by 135 publications

References 88 publications

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Life history and dispersal timing evolve in response to metapopulation connectedness

Testing different forms of regulation of yolk thyroid hormone transfer in pied flycatchers

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