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dc.contributor.authorVanadzina, Karina
dc.contributor.authorPhillips, André
dc.contributor.authorMartins, Bonnie
dc.contributor.authorLaland, Kevin N.
dc.contributor.authorWebster, Michael M.
dc.contributor.authorSheard, Catherine
dc.identifier.citationVanadzina , K , Phillips , A , Martins , B , Laland , K N , Webster , M M & Sheard , C 2021 , ' Ecological and behavioural drivers of offspring size in marine teleost fishes ' , Global Ecology and Biogeography , vol. 30 , no. 12 , pp. 2407-2419 .
dc.identifier.otherPURE: 275954356
dc.identifier.otherPURE UUID: 4a33f046-7594-46c2-87eb-3d222c8aab6d
dc.identifier.otherRIS: urn:DBD21EAD46D0D44B77E833464E5EBBA0
dc.identifier.otherORCID: /0000-0002-2457-0900/work/100549537
dc.identifier.otherORCID: /0000-0001-9597-6871/work/100549631
dc.identifier.otherScopus: 85115029000
dc.identifier.otherWOS: 000696962300001
dc.descriptionThis study was funded by the Carnegie Trust (#RIG008238 to CS) and John Templeton Foundation (#60501 to KNL).en
dc.description.abstractAim Our aim was to evaluate the role of ecological and life-history factors in shaping global variation in offspring size in a marine clade with a diverse range of parental care behaviours.  Location Global.  Time period Data sourced from literature published from 1953 until 2019. Major taxa studied Marine teleost fishes.  Methods We compiled a species-level dataset of egg and hatch size for 1,639 species of marine fish across 45 orders. We used Bayesian phylogenetic mixed models to evaluate the relationship between offspring size and environmental factors (i.e., mean temperature, chlorophyll-a and dissolved oxygen content together with their annual variation), as well as latitude, reproductive strategy, parental body size and fecundity. We also tested long-standing hypotheses about the co-evolution of offspring size and the presence of parental care in BayesTraits.  Results After controlling for parental body size and phylogenetic history, we find that increased egg size is associated with colder and oxygen-rich waters, while hatch size further depends on food supply and the reproductive strategy exhibited by the species. Irrespective of the initial investment in egg size, species with parental care or demersal egg development yield larger hatchlings compared to pelagic spawners. We also demonstrate that hatch size has co-evolved with advanced forms of care in association with parental body but fail to find a relationship with other types of care.  Main conclusions Our study shows that parental care behaviours, together with environmental context, influence the evolution of classic life-history trade-offs on a global scale. While the initial investment in eggs is driven primarily by temperature and oxygen content, hatch size also reflects the impact of care an offspring has received throughout development. In support of the 'offspring-first' hypothesis, we find that an increase in hatch size drives the evolution of advanced care provision.
dc.relation.ispartofGlobal Ecology and Biogeographyen
dc.rightsCopyright © 2021 John Wiley & Sons Ltd. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectMarine fishesen
dc.subjectMarine life historiesen
dc.subjectOffspring sizeen
dc.subjectParental investmenten
dc.subjectTrait biogeographyen
dc.subjectTrait co-evolutionen
dc.subjectGC Oceanographyen
dc.subjectEcology, Evolution, Behavior and Systematicsen
dc.subjectGlobal and Planetary Changeen
dc.titleEcological and behavioural drivers of offspring size in marine teleost fishesen
dc.typeJournal articleen
dc.contributor.sponsorJohn Templeton Foundationen
dc.contributor.sponsorCarnegie Trusten
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Institute of Behavioural and Neural Sciencesen
dc.contributor.institutionUniversity of St Andrews. Centre for Social Learning & Cognitive Evolutionen
dc.contributor.institutionUniversity of St Andrews. School of Earth & Environmental Sciencesen
dc.description.statusPeer revieweden

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