Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles

Abstract Complete functional descriptions of the induction sequences of phenotypically plastic traits (perception to physiological regulation to response to outcome) should help us to clarify how plastic responses develop and operate. Ranid tadpoles express several plastic antipredator traits mediat...

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Autores principales:	Michael E. Fraker, Stuart A. Ludsin, Barney Luttbeg, Robert J. Denver
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9963937eaab34d6b8a674c8d2eac2821
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spelling	oai:doaj.org-article:9963937eaab34d6b8a674c8d2eac28212021-12-02T15:52:59ZStress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles10.1038/s41598-021-84052-92045-2322https://doaj.org/article/9963937eaab34d6b8a674c8d2eac28212021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84052-9https://doaj.org/toc/2045-2322Abstract Complete functional descriptions of the induction sequences of phenotypically plastic traits (perception to physiological regulation to response to outcome) should help us to clarify how plastic responses develop and operate. Ranid tadpoles express several plastic antipredator traits mediated by the stress hormone corticosterone, but how they influence outcomes remains uncertain. We investigated how predator-induced changes in the tail morphology of wood frog (Rana sylvatica) tadpoles influenced their escape performance over a sequence of time points when attacked by larval dragonflies (Anax junius). Tadpoles were raised with no predator exposure, chemical cues of dragonflies added once per day, or constant exposure to caged dragonflies crossed with no exogenous hormone added (vehicle control only), exogenous corticosterone, or metyrapone (a corticosteroid synthesis inhibitor). During predation trials, we detected no differences after four days, but after eight days, tadpoles exposed to larval dragonflies and exogenous corticosterone had developed deeper tail muscles and exhibited improved escape performance compared to controls. Treatment with metyrapone blocked the development of a deeper tail muscle and resulted in no difference in escape success. Our findings further link the predator-induced physiological stress response of ranid tadpoles to the development of an antipredator tail morphology that confers performance benefits.Michael E. FrakerStuart A. LudsinBarney LuttbegRobert J. DenverNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michael E. Fraker Stuart A. Ludsin Barney Luttbeg Robert J. Denver Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles
description	Abstract Complete functional descriptions of the induction sequences of phenotypically plastic traits (perception to physiological regulation to response to outcome) should help us to clarify how plastic responses develop and operate. Ranid tadpoles express several plastic antipredator traits mediated by the stress hormone corticosterone, but how they influence outcomes remains uncertain. We investigated how predator-induced changes in the tail morphology of wood frog (Rana sylvatica) tadpoles influenced their escape performance over a sequence of time points when attacked by larval dragonflies (Anax junius). Tadpoles were raised with no predator exposure, chemical cues of dragonflies added once per day, or constant exposure to caged dragonflies crossed with no exogenous hormone added (vehicle control only), exogenous corticosterone, or metyrapone (a corticosteroid synthesis inhibitor). During predation trials, we detected no differences after four days, but after eight days, tadpoles exposed to larval dragonflies and exogenous corticosterone had developed deeper tail muscles and exhibited improved escape performance compared to controls. Treatment with metyrapone blocked the development of a deeper tail muscle and resulted in no difference in escape success. Our findings further link the predator-induced physiological stress response of ranid tadpoles to the development of an antipredator tail morphology that confers performance benefits.
format	article
author	Michael E. Fraker Stuart A. Ludsin Barney Luttbeg Robert J. Denver
author_facet	Michael E. Fraker Stuart A. Ludsin Barney Luttbeg Robert J. Denver
author_sort	Michael E. Fraker
title	Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles
title_short	Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles
title_full	Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles
title_fullStr	Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles
title_full_unstemmed	Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles
title_sort	stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9963937eaab34d6b8a674c8d2eac2821
work_keys_str_mv	AT michaelefraker stresshormonemediatedantipredatormorphologyimprovesescapeperformanceinamphibiantadpoles AT stuartaludsin stresshormonemediatedantipredatormorphologyimprovesescapeperformanceinamphibiantadpoles AT barneyluttbeg stresshormonemediatedantipredatormorphologyimprovesescapeperformanceinamphibiantadpoles AT robertjdenver stresshormonemediatedantipredatormorphologyimprovesescapeperformanceinamphibiantadpoles
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Stress hormone-mediated antipredator morphology improves escape performance in amphibian tadpoles

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