干旱区生态环境知识资源中心(Arid): A nematode in the mist: Scottnema lindsayae is the only soil metazoan in remote Antarctic deserts, at greater densities with altitude

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DOI	10.33265/polar.v38.3494
	A nematode in the mist: Scottnema lindsayae is the only soil metazoan in remote Antarctic deserts, at greater densities with altitude
	Zawierucha, Krzysztof 1,4; Marshall, Craig J.2; Wharton, David 3; Janko, Karel 4,5
通讯作者	Janko, Karel
来源期刊	POLAR RESEARCH
ISSN	0800-0395
EISSN	1751-8369
出版年	2019
卷号	38
英文摘要	A decrease in biodiversity and density of terrestrial organisms with increasing altitude and latitude is a well-known ecogeographical pattern. However, studies of these trends are often taxonomically-biased toward well-known organisms and especially those with relatively large bodies, and environmental variability at the local scale may perturb these general effects. Here, we focus on understudied organisms-soil invertebrates-in Antarctic deserts, which are among the driest and coldest places on Earth. We sampled two remote Antarctic sites in the Darwin Glacier area and established an altitudinal gradient running from 210 to 836 m a.s.l. We measured soil geochemistry and organic matter content and linked these parameters with the presence of soil invertebrates. We found three general outcomes, two of which are consistent with general assumptions: (a) the hostile climatic condition of the Darwin Glacier region supports an extremely low diversity of soil metazoans represented by a single nematode species-Scottnema lindsayae; (b) soil geochemistry is the main factor influencing distribution of nematodes at the local scale. Contrary to our expectations, a positive correlation was found between nematode density and altitude. This last observation could be explained by an additional effect of soil moisture as we found this increased with altitude and may be caused by orographic clouds, which are present in this region. To the best of our knowledge such effects have been described in tropical and temperate regions. Potential effect of orographic clouds on soil properties in polar deserts may be a fruitful area of ecological research on soil fauna.
英文关键词	Altitudinal gradient Antarctica ecosystem variability orographic clouds Darwin Glacier soil moisture
类型	Article
语种	英语
国家	Poland ; New Zealand ; Czech Republic
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000474231700001
WOS关键词	MCMURDO DRY VALLEYS ; TAYLOR VALLEY ; CLIMATE-CHANGE ; VICTORIA LAND ; TERRESTRIAL BIODIVERSITY ; COMMUNITY STRUCTURE ; DARWIN MOUNTAINS ; CRYOCONITE HOLES ; ROSS ISLAND ; DIVERSITY
WOS类目	Ecology ; Geosciences, Multidisciplinary ; Oceanography
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218133
作者单位	1.Adam Mickiewicz Univ, Fac Biol, Dept Anim Taxon & Ecol, Poznan, Poland; 2.Univ Otago, Dept Biochem & Genet Otago, Dunedin, New Zealand; 3.Univ Otago, Dept Zool, Dunedin, New Zealand; 4.Acad Sci Czech Republ, Inst Anim Physiol & Genet, Lab Fish Genet, Rumburska 89, Libechov 27721, Czech Republic; 5.Univ Ostrava, Fac Sci, Dept Biol & Ecol, Ostrava, Czech Republic
推荐引用方式 GB/T 7714	Zawierucha, Krzysztof,Marshall, Craig J.,Wharton, David,et al. A nematode in the mist: Scottnema lindsayae is the only soil metazoan in remote Antarctic deserts, at greater densities with altitude[J],2019,38.
APA	Zawierucha, Krzysztof,Marshall, Craig J.,Wharton, David,&Janko, Karel.(2019).A nematode in the mist: Scottnema lindsayae is the only soil metazoan in remote Antarctic deserts, at greater densities with altitude.POLAR RESEARCH,38.
MLA	Zawierucha, Krzysztof,et al."A nematode in the mist: Scottnema lindsayae is the only soil metazoan in remote Antarctic deserts, at greater densities with altitude".POLAR RESEARCH 38(2019).