Environmentally plastic maternal effects only marginally alter rate of adaptation in a wild songbird

J.J.C.  Ramakers; M.M.P. Cobben; T. E. Reed; Piter Bijma; M.E. Visser; P. Gienapp

Environmentally plastic maternal effects only marginally alter rate of adaptation in a wild songbird

J.J.C. Ramakers, M.M.P. Cobben, T. E. Reed, Piter Bijma, M.E. Visser, P. Gienapp

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As the classical Breeder’s Equation often fails to accurately predict evolutionary responses, concepts of ‘total’ heritability incorporating ‘non-genetic inheritance’, such as maternal effects (MEs), have been explored. Despite ample evidence for MEs in a variety of traits and theoretical indications for their evolutionary importance, the consequences of MEs for evolutionary responses in natural populations remain unclear. We here explored whether MEs can alter the rate of adaptation of a key life-history trait, clutch size, undergoing directional selection following an environmental shift (e.g. when increased phenological mismatch due to climate warming leads to a smaller optimal clutch size). To test this, we parameterized an individual-based model with data from a long-term (1973–2013) study of great tits (Parus major). Using these realistic parameter values we show that MEs, whether ‘environmentally plastic’ or fixed, have little effect on evolutionary responses. This demonstrates the importance of using realistic parameters values in theoretical models and questions the importance of MEs for adaptation to environmental changes, such as climate change.

Originele taal-2	Engels
Status	Gepubliceerd - 2017

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@conference{b71811714b99440e9709e463820df7e2,

title = "Environmentally plastic maternal effects only marginally alter rate of adaptation in a wild songbird",

abstract = "As the classical Breeder{\textquoteright}s Equation often fails to accurately predict evolutionary responses, concepts of {\textquoteleft}total{\textquoteright} heritability incorporating {\textquoteleft}non-genetic inheritance{\textquoteright}, such as maternal effects (MEs), have been explored. Despite ample evidence for MEs in a variety of traits and theoretical indications for their evolutionary importance, the consequences of MEs for evolutionary responses in natural populations remain unclear. We here explored whether MEs can alter the rate of adaptation of a key life-history trait, clutch size, undergoing directional selection following an environmental shift (e.g. when increased phenological mismatch due to climate warming leads to a smaller optimal clutch size). To test this, we parameterized an individual-based model with data from a long-term (1973–2013) study of great tits (Parus major). Using these realistic parameter values we show that MEs, whether {\textquoteleft}environmentally plastic{\textquoteright} or fixed, have little effect on evolutionary responses. This demonstrates the importance of using realistic parameters values in theoretical models and questions the importance of MEs for adaptation to environmental changes, such as climate change.",

author = "J.J.C. Ramakers and M.M.P. Cobben and Reed, {T. E.} and Piter Bijma and M.E. Visser and P. Gienapp",

year = "2017",

language = "English",

}

TY - CONF

T1 - Environmentally plastic maternal effects only marginally alter rate of adaptation in a wild songbird

AU - Ramakers, J.J.C.

AU - Cobben, M.M.P.

AU - Reed, T. E.

AU - Bijma, Piter

AU - Visser, M.E.

AU - Gienapp, P.

PY - 2017

Y1 - 2017

N2 - As the classical Breeder’s Equation often fails to accurately predict evolutionary responses, concepts of ‘total’ heritability incorporating ‘non-genetic inheritance’, such as maternal effects (MEs), have been explored. Despite ample evidence for MEs in a variety of traits and theoretical indications for their evolutionary importance, the consequences of MEs for evolutionary responses in natural populations remain unclear. We here explored whether MEs can alter the rate of adaptation of a key life-history trait, clutch size, undergoing directional selection following an environmental shift (e.g. when increased phenological mismatch due to climate warming leads to a smaller optimal clutch size). To test this, we parameterized an individual-based model with data from a long-term (1973–2013) study of great tits (Parus major). Using these realistic parameter values we show that MEs, whether ‘environmentally plastic’ or fixed, have little effect on evolutionary responses. This demonstrates the importance of using realistic parameters values in theoretical models and questions the importance of MEs for adaptation to environmental changes, such as climate change.

AB - As the classical Breeder’s Equation often fails to accurately predict evolutionary responses, concepts of ‘total’ heritability incorporating ‘non-genetic inheritance’, such as maternal effects (MEs), have been explored. Despite ample evidence for MEs in a variety of traits and theoretical indications for their evolutionary importance, the consequences of MEs for evolutionary responses in natural populations remain unclear. We here explored whether MEs can alter the rate of adaptation of a key life-history trait, clutch size, undergoing directional selection following an environmental shift (e.g. when increased phenological mismatch due to climate warming leads to a smaller optimal clutch size). To test this, we parameterized an individual-based model with data from a long-term (1973–2013) study of great tits (Parus major). Using these realistic parameter values we show that MEs, whether ‘environmentally plastic’ or fixed, have little effect on evolutionary responses. This demonstrates the importance of using realistic parameters values in theoretical models and questions the importance of MEs for adaptation to environmental changes, such as climate change.

M3 - Poster

ER -

Environmentally plastic maternal effects only marginally alter rate of adaptation in a wild songbird

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