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DOI	10.1002/ece3.11009
	Are sub-alpine species' seedling emergence and establishment in the alpine limited by climate or biotic interactions?
	Dahle, Ingrid J.; Gya, Ragnhild; Topper, Joachim P.; Vandvik, Vigdis
发表日期	2024
ISSN	2045-7758
起始页码	14
结束页码	2
卷号	14 期号:2
英文摘要	One of the ways in which plants are responding to climate change is by shifting their ranges to higher elevations. Early life-history stages are major bottlenecks for species' range shifts, and variation in seedling emergence and establishment success can therefore be important determinants of species' ability to establish at higher elevations. Previous studies have found that warming per se tends to not only increase seedling establishment in alpine climates but it also increases plant productivity, which could limit establishment success through increased competition for light. Here we disentangle the relative importance of several climate-related abiotic and biotic factors on sub-alpine species' seedling emergence and survival in the alpine. Specifically, we test how temperature, precipitation and competition from neighbouring vegetation impacts establishment, and also whether species' functional traits, or strategies impact their ability to colonise alpine locations. We found that our six sub-alpine study species were all able to recruit from seed in alpine locations under the extant alpine climate, but their emergence was limited by competition from neighbouring vegetation. This indicates that biotic interactions can hinder the range shifts expected as a result of climate warming. Species with a resource conservative strategy had higher emergence in the extant alpine climate than species with a resource acquisitive strategy, and they were largely unaffected by changes in temperature. The resource acquisitive species, in contrast, had faster emergence under warming, especially when they were released from competition from neighbouring vegetation. Our results indicate that competition from the established vegetation is limiting the spread of lowland species into the alpine, and as the climate continues to warm, species with resource acquisitive traits might gain an advantage. Plants are responding to climate change by shifting their ranges to higher elevations. There is a large variety in how fast and how far species spread, and we do not understand the factors that allow or restrict subalpine species from colonising new alpine locations. To explore the relative importance of abiotic and biotic factors, as well as species-specific life strategies, on these limitations, we performed a seed transplant experiment with and without experimental warming, crossed with manipulation of biotic interactions, replicated across a precipitation gradient, with three resource conservative and three resource acquisitive subalpine species.image
英文关键词	Carex pallescens; Carex pilulifera; climate change; disturbance; grassland; Hypericum maculatum; range shift; resource acquisitive strategy; resource conservative strategy; seedling recruitment; seed-sowing experiment; Succisa pratensis; Veronica officinalis; Viola canina; warming
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:001160456700001
来源期刊	ECOLOGY AND EVOLUTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288574
作者单位	University of Bergen; University of Bergen; Bjerknes Centre for Climate Research; Norwegian Institute Nature Research; University of Bergen
推荐引用方式 GB/T 7714	Dahle, Ingrid J.,Gya, Ragnhild,Topper, Joachim P.,et al. Are sub-alpine species' seedling emergence and establishment in the alpine limited by climate or biotic interactions?[J],2024,14(2).
APA	Dahle, Ingrid J.,Gya, Ragnhild,Topper, Joachim P.,&Vandvik, Vigdis.(2024).Are sub-alpine species' seedling emergence and establishment in the alpine limited by climate or biotic interactions?.ECOLOGY AND EVOLUTION,14(2).
MLA	Dahle, Ingrid J.,et al."Are sub-alpine species' seedling emergence and establishment in the alpine limited by climate or biotic interactions?".ECOLOGY AND EVOLUTION 14.2(2024).