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dc.contributor.authorLiu, Yang
dc.contributor.authorErbilgin, Nadir
dc.contributor.authorRatcliffe, Blaise
dc.contributor.authorKlutsch, Jennifer G
dc.contributor.authorWei, Xiaojing
dc.contributor.authorUllah, Aziz
dc.contributor.authorCappa, Eduardo Pablo
dc.contributor.authorChen, Charles
dc.contributor.authorThomas, Barb R
dc.contributor.authorEl-Kassaby, Yousry A
dc.description.abstractWhile droughts, intensified by climate change, have been affecting forests worldwide, pest epidemics are a major source of uncertainty for assessing drought impacts on forest trees. Thus far, little information has documented the adaptability and evolvability of traits related to drought and pests simultaneously. We conducted common-garden experiments to investigate how several phenotypic traits (i.e. height growth, drought avoidance based on water-use efficiency inferred from δ13C and pest resistance based on defence traits) interact in five mature lodgepole pine populations established in four progeny trials in western Canada. The relevance of interpopulation variation in climate sensitivity highlighted that seed-source warm populations had greater adaptive capability than cold populations. In test sites, warming generated taller trees with higher δ13C and increased the evolutionary potential of height growth and δ13C across populations. We found, however, no pronounced gradient in defences and their evolutionary potential along populations or test sites. Response to selection was weak in defences across test sites, but high for height growth particularly at warm test sites. Response to the selection of δ13C varied depending on its selective strength relative to height growth. We conclude that warming could promote the adaptability and evolvability of growth response and drought avoidance with a limited evolutionary influence from pest (biotic) pressures.
dc.publisherThe Royal Society
dc.rightsAttribution 4.0 International
dc.titlePest defences under weak selection exert a limited influence on the evolution of height growth and drought avoidance in marginal pine populations.
dc.publisher.departmentMcdonald Institute For Archaeological Research
prism.publicationNameProc Biol Sci
dc.contributor.orcidLiu, Yang [0000-0002-3479-9223]
dc.contributor.orcidErbilgin, Nadir [0000-0001-9912-8095]
rioxxterms.typeJournal Article/Review
cam.orpheus.successMon Sep 12 08:39:52 BST 2022 - Embargo updated*
pubs.licence-display-nameApollo Repository Deposit Licence Agreement

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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International