Show simple item record Proulx, Stephen R. Teotónio, Henrique 2017-01-10T16:04:01Z 2017-01-10T16:04:01Z 2017-03-30
dc.identifier doi:10.5061/dryad.58416
dc.identifier.citation Proulx SR, Teotónio H (2017) What kind of maternal effects can be selected for in fluctuating environments? The American Naturalist 189(6): 118-137.
dc.identifier.issn 0003-0147
dc.description Just as phenotypic plasticity can evolve when developing individuals get informational cues about their future adult environment, deterministic maternal effects, where offspring trait values depend on the maternal environment, can evolve when mothers gain reliable information about the environments their offspring will face. Randomizing maternal effects (a type of diversifying bet hedging), where offspring trait values are randomized, can evolve by natural selection even when information about future environments is unavailable. We investigate selection on both randomizing and deterministic maternal effects in environments that show correlated fluctuations between two environmental states. We compare the strength of selection for deterministic and randomizing maternal effects and explicitly consider maternal fitness costs of producing offspring with different phenotypes. Only a small set of environmental parameters allow randomizing maternal effects to outcompete deterministic maternal effects; not only must there be little or no information available about future environments, but the frequency of each environment must fall within a narrow range. By contrast, deterministic maternal effects can always invade an ancestral state lacking a maternal effect even if the amount of environmental information available is low. The long-term outcome may involve offspring trait value randomization but only if trait values first evolve to cause extreme differences in environment-specific fitness. Overall, deterministic maternal effects are more likely to evolve by natural selection than randomizing maternal effects.
dc.relation.haspart doi:10.5061/dryad.58416/1
dc.relation.haspart doi:10.5061/dryad.58416/2
dc.relation.haspart doi:10.5061/dryad.58416/3
dc.relation.isreferencedby doi:10.1086/691423
dc.subject Adaptation
dc.subject Fitness
dc.subject Maternal effects
dc.subject Phenotypic plasticity
dc.subject Selection: natural
dc.subject Stochastic environments
dc.subject bet hedging
dc.subject Theory
dc.subject selection theory
dc.subject Trade offs
dc.title Data from: What kind of maternal effects can be selected for in fluctuating environments?
dc.type Article
dc.contributor.correspondingAuthor Proulx, Stephen R.
prism.publicationName The American Naturalist
dryad.fundingEntity EF-1137835@National Science Foundation (United States)

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