The legacy of dispersal: larval experience shapes persistence later in the life of a reef fish

The Journal of Animal Ecology
Jeffrey S Shima, S Swearer

Abstract

1. Movement pathways of individuals can be shaped by heterogeneity in the dispersal environment that separates origin and destination patches. However, effects of the dispersal environment on the phenotype (or future fitness) of dispersers is poorly known; individual experiences during dispersal may have latent effects on the performance or persistence of later life-stages. 2. We evaluated such 'legacy effects' for dispersing reef fish larvae using (i) otolith (ear stone) microchemistry to characterize two distinct dispersal pathways and (ii) otolith microstructure to estimate 'larval quality' (a composite of five measured larval phenotypes). We conducted a reciprocal transplant field experiment to evaluate selective mortality after dispersal as a function of larval quality. We conducted longitudinal sampling of natural cohorts of reef fish through to adulthood to quantify shifts in the distribution of larval quality in local populations. 3. We found the quality of dispersers to be variable and determined by their experience in the larval dispersal environment. Larval quality of successful dispersers predicted their subsequent survival after dispersal in reciprocal transplant experiments. Longitudinal sampling was consistent wi...Continue Reading

References

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Citations

Nov 27, 2014·Biological Reviews of the Cambridge Philosophical Society·Danswell StarrsChristopher J Fulton
Aug 4, 2015·Ecology·Erik G NoonburgStephen E Swearer
Dec 11, 2013·Molecular Ecology·Gerrit B NanningaMichael L Berumen
Feb 26, 2016·The Journal of Animal Ecology·Andrea L Dingeldein, J Wilson White
Jun 15, 2016·Proceedings of the National Academy of Sciences of the United States of America·Benjamin G Van Allen, Volker H W Rudolf
Oct 21, 2016·PloS One·David M BognerMelissa R Wuellner
Nov 14, 2018·Ecology·Jeffrey S Shima, Stephen E Swearer
Aug 29, 2019·Proceedings. Biological Sciences·Emily K FobertStephen E Swearer
Oct 19, 2019·Ecology and Evolution·Grégoire Saboret, Travis Ingram

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