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dc.contributor.authorGranroth-Wilding, HMVen
dc.contributor.authorBurthe, SJen
dc.contributor.authorLewis, Sen
dc.contributor.authorReed, TEen
dc.contributor.authorHerborn, KAen
dc.contributor.authorNewell, MAen
dc.contributor.authorTakahashi, EAen
dc.contributor.authorDaunt, Fen
dc.contributor.authorCunningham, EJAen
dc.date.accessioned2018-09-10T08:24:55Z
dc.date.available2018-09-10T08:24:55Z
dc.date.issued2014-09en
dc.identifier.issn2045-7758en
dc.identifier.urihttp://hdl.handle.net/10026.1/12263
dc.description.abstract

Parasites play key ecological and evolutionary roles through the costs they impose on their host. In wild populations, the effect of parasitism is likely to vary considerably with environmental conditions, which may affect the availability of resources to hosts for defense. However, the interaction between parasitism and prevailing conditions is rarely quantified. In addition to environmental variation acting on hosts, individuals are likely to vary in their response to parasitism, and the combined effect of both may increase heterogeneity in host responses. Offspring hierarchies, established by parents in response to uncertain rearing conditions, may be an important source of variation between individuals. Here, we use experimental antiparasite treatment across 5 years of variable conditions to test how annual population productivity (a proxy for environmental conditions) and parasitism interact to affect growth and survival of different brood members in juvenile European shags (Phalacrocorax aristotelis). In control broods, last-hatched chicks had more plastic growth rates, growing faster in more productive years. Older siblings grew at a similar rate in all years. Treatment removed the effect of environment on last-hatched chicks, such that all siblings in treated broods grew at a similar rate across environmental conditions. There were no differences in nematode burden between years or siblings, suggesting that variation in responses arose from intrinsic differences between chicks. Whole-brood growth rate was not affected by treatment, indicating that within-brood differences were driven by a change in resource allocation between siblings rather than a change in overall parental provisioning. We show that gastrointestinal parasites can be a key component of offspring's developmental environment. Our results also demonstrate the value of considering prevailing conditions for our understanding of parasite effects on host life-history traits. Establishing how environmental conditions shape responses to parasitism is important as environmental variability is predicted to increase.

en
dc.format.extent3408 - 3419en
dc.languageengen
dc.language.isoengen
dc.subjectBrood conflicten
dc.subjectclimate changeen
dc.subjectenvironmental variabilityen
dc.subjecthosten
dc.subjectindividual differencesen
dc.subjectivermectinen
dc.subjectnematodeen
dc.subjectparasiteen
dc.subjectseabirden
dc.subjectsibling competitionen
dc.titleParasitism in early life: environmental conditions shape within-brood variation in responses to infection.en
dc.typeJournal Article
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/25535557en
plymouth.issue17en
plymouth.volume4en
plymouth.publication-statusPublisheden
plymouth.journalEcol Evolen
dc.identifier.doi10.1002/ece3.1192en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/00 Groups by role
plymouth.organisational-group/Plymouth/00 Groups by role/Academics
plymouth.organisational-group/Plymouth/Faculty of Health and Human Sciences
plymouth.organisational-group/Plymouth/Faculty of Health and Human Sciences/School of Psychology
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA04 Psychology, Psychiatry and Neuroscience
dc.publisher.placeEnglanden
dcterms.dateAccepted2014-07-21en
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.1002/ece3.1192en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2014-09en
rioxxterms.typeJournal Article/Reviewen


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