气候变化领域集成服务门户(CCPortal): Spatial distribution and ecology of the Recent Ostracoda from Tangra Yumco and adjacent waters on the southern Tibetan Plateau: A key to palaeoenvironmental reconstruction

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DOI	10.1016/j.limno.2016.03.005
	Spatial distribution and ecology of the Recent Ostracoda from Tangra Yumco and adjacent waters on the southern Tibetan Plateau: A key to palaeoenvironmental reconstruction
	Akita, Lailah Gifty; Frenzel, Peter; Wang, Junbo; Boerner, Nicole; Peng, Ping
通讯作者	Frenzel, P (通讯作者)
发表日期	2016
ISSN	0075-9511
EISSN	1873-5851
起始页码	21
结束页码	43
卷号	59
英文摘要	We elucidate the ecology of Recent Ostracoda from a deep brackish lake, Tangra Yumco (30 degrees 45'-31 degrees 22'N and 86 degrees 23'-86 degrees 49'E, 4595 m a.s.l.) and adjacent waters on the southern Tibetan Plateau. Ostracod associations (living and empty valves) in sixty-six sediment samples collected from diverse aquatic habitats (lakes, estuary-like water and lagoon-like water waters, rivers, ponds and springs) were quantitatively assessed. Eleven Recent Ostracoda were found (nine living and two as empty valves only). Cluster analysis established two significant (p < 0.05) habitat specific associations; (i) Leucocytherella sinensis, Limnocythere inopinata, Leucocythere? dorsotuberosa, Fabaeformiscandona gyirongensis and Candona xizangensis are lacustrine fauna, (ii) Tonnacypris gyirongensis, Candona candida, Ilyocypris sp., Heterocypris incongruens and Heterocypris salina are temporary water species. Ostracod distribution and abundance are significantly (p < 0.05) correlated to physico-chemical variables. The first two axes of a canonical correspondence analysis (CCA) explain 30.9% of the variation in the species abundance data. Conductivity and habitat types are the most influential ecological factors explaining the presence and abundance of ostracods. Spearman correlation analysis reveals that: (i) Two species, L.? dorsotuberosa (r = 0.25) and L. inopinata (r = 0.36) have a significant positive correlation with conductivity while one species, T. gyirongensis (r =-0.68) displays a significant negative correlation with conductivity. Limnocythere inopinata correlates significantly positive (r = 0.37) with alkalinity. Fabaeformiscandona gyirongensis correlates significantly positive (r =0.28) with water depth. Key indicator living assemblages ate: (i) L. sinensis dominates Ca-depleted brackish waters although ubiquitously distributed; (ii) L? dorsotuberosa dwells in fresh to brackish waters; (iii) L. inopinata predominates in mesohaline to polyhaline waters; (iv) F. gyirongensis inhabits exclusively brackish-lacustrine deeper waters; (v) C. candida populates freshwaters; (vi) T. gyirongensis and Ilyocypris sp. are restricted to shallow temporary waters; (vii) H. incongruens occurs in ponds. Water depth indicators are F. gyirongensis and L? dorsotuberosa, useful in ostracod assemblages for palaeo-water depth reconstruction. Our results expand the knowledge of the ecological significance of Recent Tibetan Ostracoda ecology. This is a new insight on habitat chacteristics of both living assemblages and sub-Recent associations of ostracods in mountain aquatic ecosystems. The new modern ostracod dataset can be used for the quantitative reconstruction of past environmental variables (e.g., conductivity) and types of water environment. The key indicator ostracods are relevant in palaeolimnological and climate research on the Tibetan Plateau. (C) 2016 Published by Elsevier GmbH.
关键词	HETEROCYPRIS-INCONGRUENS OSTRACODA RECENT NONMARINE OSTRACODS LAKE-LEVEL SPECIES ASSEMBLAGES HABITAT PREFERENCES QILIAN MOUNTAINS QUATERNARY LAKE CRUSTACEA CHINA ENVIRONMENT
英文关键词	Ostracods; Aquatic ecology; Biological indicators; Saline lakes; Lake Dangra; Tibetan plateau; Palaeoenvironmental reconstruction; Mountain environment
语种	英语
WOS研究方向	Marine & Freshwater Biology
WOS类目	Limnology
WOS记录号	WOS:000380418300003
来源期刊	LIMNOLOGICA
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258708
推荐引用方式 GB/T 7714	Akita, Lailah Gifty,Frenzel, Peter,Wang, Junbo,et al. Spatial distribution and ecology of the Recent Ostracoda from Tangra Yumco and adjacent waters on the southern Tibetan Plateau: A key to palaeoenvironmental reconstruction[J]. 中国科学院青藏高原研究所,2016,59.
APA	Akita, Lailah Gifty,Frenzel, Peter,Wang, Junbo,Boerner, Nicole,&Peng, Ping.(2016).Spatial distribution and ecology of the Recent Ostracoda from Tangra Yumco and adjacent waters on the southern Tibetan Plateau: A key to palaeoenvironmental reconstruction.LIMNOLOGICA,59.
MLA	Akita, Lailah Gifty,et al."Spatial distribution and ecology of the Recent Ostracoda from Tangra Yumco and adjacent waters on the southern Tibetan Plateau: A key to palaeoenvironmental reconstruction".LIMNOLOGICA 59(2016).