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Fitness consequences of peak reproductive effort in a resource pulse system

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dc.contributor.authorHämäläinen, Anni
dc.contributor.authorMcAdam, Andrew G.
dc.contributor.authorDantzer, Ben
dc.contributor.authorLane, Jeffrey E.
dc.contributor.authorHaines, Jessica A.
dc.contributor.authorHumphries, Murray M.
dc.contributor.authorBoutin, Stan
dc.date.accessioned2021-05-25
dc.date.accessioned2022-05-31T01:43:42Z
dc.date.available2022-05-31T01:43:42Z
dc.date.issued2017
dc.description.abstractThe age trajectory of reproductive performance of many iteroparous species features an early - life increase in performance followed by a late - life senescent decline. The largest contribution of lifetime reproductive success is therefore gained at the age at which reproductive performance peaks. Using long term data on North American red squirrels we show that the environmental conditions individuals encountered could cause variation among individuals in the “height” and timing of this peak, contributing to life history variation and fitness in this population that experiences irregular resource pulses. As expected, high peak effort was positively associated with lifetime reproductive output up to a high level of annual effort. Furthermore, individuals that matched their peak reproductive effort to an anticipated resource pulse gained substantial fitness benefits through recruiting more offspring over their lifetime. Individual variation in peak reproductive effort thus has strong potential to shape life history evolution by facilitating adaptation to fluctuating environments.
dc.format.extent1.15MB
dc.format.mimetypePDF
dc.identifier.citationHamalainen, A., McAdam, A. G., Dantzer, B., Lane, J. E., Haines, J. A., Humphries, M. M., Boutin, S. (2017). Fitness consequences of peak reproductive effort in a resource pulse system. Scientific Reports 7:9335. DOI: 10.1038/s41598-017-09724-x
dc.identifier.doihttps://doi.org/10.1038/s41598-017-09724-x
dc.identifier.urihttps://hdl.handle.net/20.500.14078/2295
dc.languageEnglish
dc.language.isoen
dc.rightsAttribution (CC BY)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectiteroparous species
dc.subjectNorth American red squirrels
dc.subjectenvironmental conditions
dc.subjectreproductive output
dc.subjectboreal ecology
dc.subjectevolutionary ecology
dc.subjectevolutionary theory
dc.subjectphysiological state
dc.subjectindividual quality
dc.subjectexploration tendency
dc.titleFitness consequences of peak reproductive effort in a resource pulse systemen
dc.typeArticle

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