干旱区生态环境知识资源中心(Arid): Diatom communities differ among Antarctic moss and lichen vegetation types

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DOI	10.1017/S0954102020000620
	Diatom communities differ among Antarctic moss and lichen vegetation types
	Bishop, Jordan M.; Wasley, Jane; Waterman, Melinda J.; Kohler, Tyler J.; van de Vijver, Bart; Robinson, Sharon A.; Kopalova, Katerina
通讯作者	Bishop, JM (corresponding author), Charles Univ Prague, Dept Ecol, Prague, Czech Republic.
来源期刊	ANTARCTIC SCIENCE
ISSN	0954-1020
EISSN	1365-2079
出版年	2021
卷号	33 期号:2 页码:118-132
英文摘要	Continental Antarctica is a polar desert containing sparse pockets of vegetation within ice-free areas. Despite the recognized association between lichens, mosses and epiphytic diatoms, the environmental factors controlling diatom community structure are poorly understood. We investigated the association between diatom communities and host vegetation characteristics by experimentally adding nutrients and/or water to two bryophyte (healthy and moribund) and two lichen (crustose and Usnea) vegetation types in the Windmill Islands. Diatom communities were morphologically characterized, diversity indices calculated and differences between treatments, vegetation type and vegetation characteristics tested. We identified 49 diatom taxa, 8 of which occurred with > 1% relative abundance. Bryophyte and lichen vegetation harboured significantly different diatom communities, both in composition and diversity indices. Specifically, Luticola muticopsis was more prevalent in moribund bryophytes and crustose lichens, and Usnea lichens showed lower species richness than other types. While nutrient and water additions did not significantly alter diatom communities, diversity indices and some species showed relationships with vegetation physiological characteristics, notably %N and delta C-13, suggesting the importance of ambient gradients in water and nutrient availability. Collectively, this work suggests that future conditions favouring the dominance of a particular vegetation type may have a homogenizing effect on the terrestrial diatom communities of East Antarctica.
英文关键词	algae Antarctic Region Bacillariophyceae bryophyte climate change East Antarctica
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000648921000002
WOS类目	Environmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349471
作者单位	[Bishop, Jordan M.; Kopalova, Katerina] Charles Univ Prague, Dept Ecol, Prague, Czech Republic; [Wasley, Jane; Waterman, Melinda J.; Robinson, Sharon A.] Univ Wollongong, Sch Earth Atmospher & Life Sci, Ctr Sustainable Ecosyst Solut, Wollongong, NSW, Australia; [Wasley, Jane] Australian Antarctic Div, Environm Protect Program, Kingston, Tas, Australia; [Kohler, Tyler J.] Ecole Polytech Fed Lausanne, Stream Biofilm & Ecosyst Res Lab, Lausanne, Switzerland; [van de Vijver, Bart] Meise Bot Garden, Res Dept, Meise, Belgium; [van de Vijver, Bart] Univ Antwerp, Dept Biol, Antwerp, Belgium; [Robinson, Sharon A.] Univ Wollongong, Global Challenges Program, Wollongong, NSW, Australia
推荐引用方式 GB/T 7714	Bishop, Jordan M.,Wasley, Jane,Waterman, Melinda J.,et al. Diatom communities differ among Antarctic moss and lichen vegetation types[J],2021,33(2):118-132.
APA	Bishop, Jordan M..,Wasley, Jane.,Waterman, Melinda J..,Kohler, Tyler J..,van de Vijver, Bart.,...&Kopalova, Katerina.(2021).Diatom communities differ among Antarctic moss and lichen vegetation types.ANTARCTIC SCIENCE,33(2),118-132.
MLA	Bishop, Jordan M.,et al."Diatom communities differ among Antarctic moss and lichen vegetation types".ANTARCTIC SCIENCE 33.2(2021):118-132.