Maternal stress during pregnancy affects activity, exploration and potential dispersal of daughters in an invasive fish.

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From: Animal Behaviour(Vol. 171)
Publisher: Elsevier B.V.
Document Type: Report; Brief article
Length: 342 words

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Abstract :

Keywords dispersal; Gambusia; invasion; maternal effect; maternal stress; offspring behaviour; predation risk; sex difference; transgenerational effect Highlights * Maternal stress during pregnancy can affect offspring development. * We manipulated exposure of pregnant mosquitofish to a predatory bass model. * Maternal stress increased activity of daughters, not sons, in response to risk cues. * Maternal stress increased movement of small daughters through an artificial stream. * Transgenerational effects might shape dispersal patterns in other invasive species. Stress experienced by mothers can affect offspring phenotype, with some of these modifications potentially preparing offspring for the environment they will likely encounter. Many maternal stressors, including encounters with predators, can influence how offspring respond to risk and cues of danger later on. Using the live-bearing, highly invasive western mosquitofish, Gambusia affinis, we examined how repeated brief ( Author Affiliation: Department of Biology, The University of the South, Sewanee, TN, U.S.A. * Correspondence: K. E. McGhee, Department of Biology, The University of the South, 159 Spencer Hall, Sewanee, TN, 37383, U.S.A. Article History: Received 6 April 2020; Revised 29 May 2020; Accepted 24 September 2020 (miscellaneous) MS. number: A20-00231R (footnote)1 Contributed equally and are ordered alphabetically. Byline: Katie E. McGhee [kemcghee@sewanee.edu] (*), Angela J. Barbosa (1), Kailey Bissell (1), Niko A. Darby (1), Savannah Foshee (1)

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Gale Document Number: GALE|A648929882