气候变化领域集成服务门户(CCPortal): Changes in species richness with climate change in subalpine communities are dependent on regional environmental conditions and local functional composition

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DOI	10.1111/jvs.13254
	Changes in species richness with climate change in subalpine communities are dependent on regional environmental conditions and local functional composition
	Michalet, Richard; Delpy, Ida; Eisenberg, Auriane; Hostein, Colin; Touzard, Blaise; Gross, Nicolas; Pottier, Julien
发表日期	2024
ISSN	1100-9233
EISSN	1654-1103
起始页码	35
结束页码	2
卷号	35 期号:2
英文摘要	QuestionsClimate change may have different effects on species richness depending on regional climates, soil types and the functional composition of local communities.LocationSubalpine belt of the Grandes Rousses (Alps) and Sancy mountain ranges (the Massif Central), France.MethodsWe compared changes in species richness in response to recent climate change in communities from two mountain ranges subjected to contrasting environmental conditions, with a more continental climate and drier soils in the Alps than in the Massif Central. Vegetation composition of 189 and 157 plots was assessed in 1997 and 2017-2018 in the Alps and 1988-1989 and 2022 in the Massif Central, respectively. Five species traits (height, lateral spread, leaf area, specific leaf area and leaf dry matter content) were measured on 108 and 144 species, respectively. Changes in vegetation composition and species richness along spatial environmental gradients were analysed with correspondence analysis at the Sancy site and canonical correspondence analysis at the Alpe d'Huez site. Changes in functional composition across sites were analysed with principal components analysis. Changes in species richness with climate change were analysed with repeated-measure ANOVAs.ResultsIn both mountain ranges summer temperatures increased and the hydric balance decreased over the past three decades, but snow cover duration decreased in the Alps only, whereas irradiance strongly increased in the Massif Central only. Functional composition was characterized by shorter and more conservative species in the Alps than in the Massif Central, which was dominated by tall exploitative species. Species richness overall decreased with climate change by ca 10% in the Alps but overall increased by ca 10% in the Massif Central. Species richness decreased in the Alps probably because of increasing competition induced by dwarf shrub encroachment due to decreasing snow cover duration, whereas species richness increased in the Massif Central probably due to increasing irradiance in a very nebulous climate.ConclusionThe opposite changes in species richness observed in the two mountain ranges with recent climate change were likely to be explained by their contrasting climate and soil conditions driving different functional compositions and diversity-environment relationships. We compared the effects of climate change on species richness of subalpine plant communities from the Massif Central and intermediate Alps (France). In the former species richness increased by ca. 10% due to increasing irradiance in a very wet climate, while it decreased in the latter by ca. 10% due to decreasing snow cover duration and likely increasing competition.image
语种	英语
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS记录号	WOS:001202987400001
来源期刊	JOURNAL OF VEGETATION SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307994
作者单位	Centre National de la Recherche Scientifique (CNRS); Universite de Bordeaux; INRAE
推荐引用方式 GB/T 7714	Michalet, Richard,Delpy, Ida,Eisenberg, Auriane,et al. Changes in species richness with climate change in subalpine communities are dependent on regional environmental conditions and local functional composition[J],2024,35(2).
APA	Michalet, Richard.,Delpy, Ida.,Eisenberg, Auriane.,Hostein, Colin.,Touzard, Blaise.,...&Pottier, Julien.(2024).Changes in species richness with climate change in subalpine communities are dependent on regional environmental conditions and local functional composition.JOURNAL OF VEGETATION SCIENCE,35(2).
MLA	Michalet, Richard,et al."Changes in species richness with climate change in subalpine communities are dependent on regional environmental conditions and local functional composition".JOURNAL OF VEGETATION SCIENCE 35.2(2024).