气候变化领域集成服务门户(CCPortal): Survival, growth and cold hardiness tradeoffs in white spruce populations: Implications for assisted migration

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DOI	10.1016/j.foreco.2018.10.046
	Survival, growth and cold hardiness tradeoffs in white spruce populations: Implications for assisted migration
	Sebastian-Azcona J.; Hamann A.; Hacke U.G.; Rweyongeza D.
发表日期	2019
ISSN	0378-1127
起始页码	544
结束页码	552
卷号	433
英文摘要	Human assisted movement of reforestation stock poleward or upward in elevation has been proposed as a tool to address climate change in regular reforestation programs. However, moving warm adapted seed sources to colder environments could carry the risk of frost damage if seed sources are moved too far. Here, we assess genetic differentiation in growth potential, survival and cold hardiness of a wide-ranging tree species, white spruce (Picea glauca [Moench] Voss). We use data from a 34-year-old common garden experiment planted in the approximate center of the species range. Cold hardiness was negatively related to growth and positively to survival. Generalized additive models identified mean coldest month temperature and latitude (as a proxy for the day length regime) as an exceptionally good predictor for the onset of cold hardiness (R2 adj = 0.91). The results suggest that day length, an environmental factor that is not influenced by climate change, is an important factor controlling the timing of the onset of hardiness. Survival was only moderately well predicted, primarily by precipitation of the provenance origin (R2 adj = 0.36) indicating that other adaptive traits besides cold hardiness should be considered in assisted migration prescriptions. Survival of seed sources appears primarily compromised when transplanting sources from wet origins to a dry location. Nevertheless, acceptable migration distances without significant tradeoffs were up to 500 km north and 1500 km west towards a central planting location. © 2018 Elsevier B.V.
英文关键词	Assisted migration; Climate change; Cold hardiness; Hardiness zones; Provenance trial
语种	英语
scopus关键词	Commerce; Population statistics; Reforestation; Assisted migration; Cold hardiness; Environmental factors; Generalized additive model; Genetic differentiation; Hardiness zone; Planting locations; Provenance trial; Climate change; cold tolerance; coniferous tree; forest management; growth response; provenance trial; survival; trade-off; Growth; Hardiness; Picea Glauca; Reforestation; Seeds; Sources; Survival; Picea glauca
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156256
作者单位	Department of Renewable Resources, Faculty of Agricultural, Life, and Environmental Sciences, University of Alberta, 751 General Services Building, Edmonton, AB T6G 2H1, Canada; Alberta Agriculture and Forestry, Forest Management Branch, 9920-108 Street, Edmonton, Alberta T5K 2M4, Canada
推荐引用方式 GB/T 7714	Sebastian-Azcona J.,Hamann A.,Hacke U.G.,et al. Survival, growth and cold hardiness tradeoffs in white spruce populations: Implications for assisted migration[J],2019,433.
APA	Sebastian-Azcona J.,Hamann A.,Hacke U.G.,&Rweyongeza D..(2019).Survival, growth and cold hardiness tradeoffs in white spruce populations: Implications for assisted migration.Forest Ecology and Management,433.
MLA	Sebastian-Azcona J.,et al."Survival, growth and cold hardiness tradeoffs in white spruce populations: Implications for assisted migration".Forest Ecology and Management 433(2019).