Sub-recent ostracoda from Qilian Mountains (NW China) and their ecological significance
Sub-recent ostracoda from Qilian Mountains (NW China) and their ecological significance
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DOI：
10.1016/s0075-9511(03)80023-3
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发表时间：
2003-12-01
期刊：
影响因子：
1.7
通讯作者：
Sun, ZC
中科院分区：
文献类型：
--
作者：
Mischke, S;Herzschuh, U;Sun, ZC
在祁连山的表层和短岩芯中记录了23种介形类。布鲁克斯和河流，小浅草甸和牛轭池和湖泊的采样范围从海拔2900米至3570米asl。布鲁克斯的优势种为Candona rawsoni、Ilyocypris cf. bradyi和/或Ilyocypris lacustris和Limnocythere inopinata。在河流生境中，Candona candida和Eucypris sp.最丰富。泥炭、营养不良沃茨的草甸池塘主要含有Ilyocypris cf. bradyi和/或Ilyocypris lacustris和Eucypris sp.，而后者在浅牛轭池中被Heterocypris incongruens取代。淡水乱海子湖中最常见的种类是Candona rawsoni、Cyclocypris ovum和Ilyocypris echinata，它们主要分布于泛北极区，而Fabaeformiscandona danielopoli和Ilyocypris echinata则仅分布于我国寒冷的山区。
23 ostracod species have been recorded from surface and short core samples from the Qilian Mountains, NW China. Brooks and rivers, small shallow meadow and oxbow pools and a lake were sampled at an altitude ranging from 2900 m to 3570 m asl. Brooks were dominated by Candona rawsoni, Ilyocypris cf. bradyi and/or Ilyocypris lacustris and Limnocythere inopinata. In river habitats Candona candida and Eucypris sp. were most abundant. Meadow pools with peaty, dystrophic waters mainly contained valves of Ilyocypris cf. bradyi and/or Ilyocypris lacustris and Eucypris sp. whereas the latter was replaced by Heterocypris incongruens in a shallow oxbow pool. Candona rawsoni, Cyclocypris ovum and Ilyocypris echinata were the most frequent species in the freshwater Lake Luanhaizi.The recorded taxa are mainly distributed in the holarctic realm but Fabaeformiscandona danielopoli and Ilyocypris echinata appear to be restricted to the cold mountainous region in China.