干旱区生态环境知识资源中心(Arid): Vegetation growth and landscape genetics of Tillandsia lomas at their dry limits in the Atacama Desert show fine-scale response to environmental parameters

Arid

DOI	10.1002/ece3.6924
	Vegetation growth and landscape genetics of Tillandsia lomas at their dry limits in the Atacama Desert show fine-scale response to environmental parameters
	Koch, Marcus A.; Stock, Clara; Kleinpeter, Dorothea; del Rio, Camilo; Osses, Pablo; Merklinger, Felix F.; Quandt, Dietmar; Siegmund, Alexander
通讯作者	Koch, MA
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2020
卷号	10 期号:23 页码:13260-13274
英文摘要	Ecosystem dry limits have been studied in the context of species biology, fitness, and interactions with biotic and abiotic parameters, but the interactive effects of these parameters remain underexplored. Therefore, information on the putative effects of global climate change on these ecosystems is often lacking. We analyzed the interplay between fine-scale landscape genetics and biotic and abiotic factors of terrestrial Tillandsia lomas in the hyperarid Atacama Desert, characterized by a fog-dependent vegetation type almost entirely dominated by one single vascular plant species. We showed that metapopulations of Tillandsia landbeckii are genetically connected over many hundreds of square kilometers, and despite having a large potential for clonal propagation, genetic diversity is regionally and locally structured. At the landscape level, genetic diversity correlates well with fitness parameters such as growth, flowering, and vegetation density. We also observed fine-scale correlation with a 3-D landscape model indicating a positive feedback with seasonal fog occurrence and availability. The various interactions of biotic and abiotic factors resulted in regular linear banding patterns of vegetation arranged orthogonally toward the landscape slope. Ex situ growth experiments indicated that T. landbeckii grows at optimal rates in this extreme hyperarid environment, and we can extrapolate mean biomass production for this ecosystem. Synthesis. Our results suggest that the unique ecosystem of terrestrial Tillandsia lomas in the hyperarid Atacama Desert is an evolutionarily balanced and fine-scaled system. The vegetation itself is composed of long-lived and persistent modules. We developed a descriptive model of the various interacting factors, thereby also highlighting the severe threat caused by global climate change potentially associated with fog disturbance patterns along the Chilean Pacific coast.
英文关键词	Atacama Desert Chile genetic diversity hyperaridity local adaptation loma vegetation Tillandsia
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000586025300001
WOS关键词	CLIMATE-CHANGE ; SPATIAL-DISTRIBUTION ; BROMELIACEAE ; LATIFOLIA ; AFLP
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327318
作者单位	[Koch, Marcus A.; Stock, Clara; Kleinpeter, Dorothea] Heidelberg Univ, Ctr Organismal Studies, D-69120 Heidelberg, Germany; [Koch, Marcus A.; Siegmund, Alexander] Heidelberg Univ, Heidelberg Ctr Environm HCE, Heidelberg, Germany; [del Rio, Camilo; Osses, Pablo] Pontificia Univ Catolica Chile, Inst Geog, Santiago, Chile; [del Rio, Camilo; Osses, Pablo] Pontificia Univ Catolica Chile, Ctr UC Desierto Atacama, Santiago, Chile; [Merklinger, Felix F.; Quandt, Dietmar] Univ Bonn, Nees Inst Biodivers Plants NEES, Bonn, Germany; [Siegmund, Alexander] Heidelberg Univ Educ, Dept Geog, Res Grp Earth Observat rgeo, Heidelberg, Germany
推荐引用方式 GB/T 7714	Koch, Marcus A.,Stock, Clara,Kleinpeter, Dorothea,et al. Vegetation growth and landscape genetics of Tillandsia lomas at their dry limits in the Atacama Desert show fine-scale response to environmental parameters[J],2020,10(23):13260-13274.
APA	Koch, Marcus A..,Stock, Clara.,Kleinpeter, Dorothea.,del Rio, Camilo.,Osses, Pablo.,...&Siegmund, Alexander.(2020).Vegetation growth and landscape genetics of Tillandsia lomas at their dry limits in the Atacama Desert show fine-scale response to environmental parameters.ECOLOGY AND EVOLUTION,10(23),13260-13274.
MLA	Koch, Marcus A.,et al."Vegetation growth and landscape genetics of Tillandsia lomas at their dry limits in the Atacama Desert show fine-scale response to environmental parameters".ECOLOGY AND EVOLUTION 10.23(2020):13260-13274.