气候变化领域集成服务门户(CCPortal): Bioclimatic distance and performance of apical shoot extension: Disentangling the role of growth rate and duration in ecotypic differentiation

CCPortal

DOI	10.1016/j.foreco.2020.118483
	Bioclimatic distance and performance of apical shoot extension: Disentangling the role of growth rate and duration in ecotypic differentiation
	Silvestro R.; Brasseur S.; Klisz M.; Mencuccini M.; Rossi S.
发表日期	2020
ISSN	0378-1127
卷号	477
英文摘要	Under the same environmental conditions, southern and northern populations of temperate and boreal ecosystems exhibit different growth performance. However, which growth trait drives this difference is still unresolved. This study aimed to disentangle the effect of duration and rate of growth on shoot extension of five black spruce [Picea mariana (Mill.)] populations originating from a latitudinal gradient in Quebec, Canada, and growing in a common garden at the southern border of the boreal forest to simulate warming conditions. Bud phenology was monitored weekly during the growing seasons 2017–2019, and shoot length was recorded in autumn, representing annual growth of the primary meristem. Populations originating from the colder sites showed a lower annual shoot increment compared to those originating from the warmer sites. Despite similar durations of bud phenology, the period of shoot extension occurred between the beginning of June and the beginning of July and was longer in the provenances originating from the colder sites. The period of shoot extension, on average, was shortened by 0.9 days for each degree Celsius of increase in annual mean temperature of the site of origin. Moreover, the populations originating from warmer sites showed higher growth rates, which increased by 0.1 cm day−1 for each degree Celsius of increase in the annual mean temperature of the site of origin. Our results confirmed ecotypic variation in growth performance among black spruce populations and demonstrated that differences in shoot length are related to both rate and duration of growth. In the context of a warming climate, northern populations may be unable to reach the current growth performance of southern ones because of their adaptations to harsh local conditions and low intrinsic growth rates. © 2020 Elsevier B.V.
英文关键词	Boreal forest; Bud burst; Bud phenology; Common garden; Phenotypic plasticity; Picea mariana
语种	英语
scopus关键词	Biology; Forestry; Annual mean temperatures; Boreal ecosystems; Environmental conditions; Growth performance; Latitudinal gradients; Local conditions; Quebec , Canada; Warming climate; Population statistics; adaptation; bioclimatology; boreal forest; coniferous tree; environmental conditions; growing season; growth; growth rate; latitudinal gradient; phenology; seasonal variation; shoot; spatiotemporal analysis; Biology; Forestry; Growth Rate; Performance; Picea Mariana; Sites; Temperature; Picea mariana
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/154983
作者单位	Département des Sciences Fondamentales, Université du Québec à Chicoutimi, 555 boulevard de l'Université, ChicoutimiQC G7H2B1, Canada; Université de Technologie de Compiègne, Rue du Docteur Schweitzer CS 60319, Compiègne Cedex, 60203, France; Department of Silviculture and Genetics, Forest Research Institute, Braci Lesnej Street No 3, Sekocin Stary, Raszyn, PL-05-090, Poland; Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Bellaterra, Barcelona, 08193, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig de Lluis Companys 23, Barcelona, 08010, Spain; Key Laboratory Of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
推荐引用方式 GB/T 7714	Silvestro R.,Brasseur S.,Klisz M.,et al. Bioclimatic distance and performance of apical shoot extension: Disentangling the role of growth rate and duration in ecotypic differentiation[J],2020,477.
APA	Silvestro R.,Brasseur S.,Klisz M.,Mencuccini M.,&Rossi S..(2020).Bioclimatic distance and performance of apical shoot extension: Disentangling the role of growth rate and duration in ecotypic differentiation.Forest Ecology and Management,477.
MLA	Silvestro R.,et al."Bioclimatic distance and performance of apical shoot extension: Disentangling the role of growth rate and duration in ecotypic differentiation".Forest Ecology and Management 477(2020).