Similar distribution pattern of different phenotypes of Limnocythere inopinata (Baird) in a brackish-water lake in Inner Mongolia
Similar distribution pattern of different phenotypes of Limnocythere inopinata (Baird) in a brackish-water lake in Inner Mongolia
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内蒙古咸水湖中Limnocythere inopinata (Baird)不同表型的相似分布格局
DOI：
10.1007/s10750-010-0295-7
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发表时间：
2010-05
期刊：
影响因子：
2.6
通讯作者：
Pang, Qiqing
中科院分区：
文献类型：
--
作者：
Zhai, Dayou;Xiao, Jule;Zhou, Lang;Wen, Ruilin;Chang, Zhigang;Pang, Qiqing
Inopinata是一种广泛分布的介形类动物，具有多种表型。然而，不同表型的分类及其生态差异仍在争论中。通过对内蒙古大荔湖51个表层沉积物中介形类的种类组成、丰度和年龄结构的分析，探讨了介形类的分布与水深和底质的关系，以期揭示该湖介形类的分布格局和生境特征。通过对32,182枚介形类的鉴定，表明大荔湖介形类的优势种为L. inopinata，包括无节、1节、2节、3节和1条脊等表型。不同水深和底质含砂量均影响着羊栖菜的分布，其表型在湖的中间带最多。不同的表型对水深和底质的选择性相似，表明不同表型的发生受其他因素的控制。结果表明，随着含沙量的增加，成虫所占比例逐渐增加，早期幼虫所占比例逐渐减少。结果表明，不同表型的盾叶甲对水深和底质的响应规律相似，其发生与水深和底质粒度密切相关。
It has been recognized long ago that Limnocythere inopinata is a widely distributed ostracod and comprises various phenotypes. The taxonomy of the different phenotypes and their ecological differences, however, are still under debate. In this study, we investigated the relationships between ostracod distribution, water depth, and the substrate based on the analyses of species composition, abundance, and age structure of ostracods in 51 surface-sediment samples from Dali Lake in Inner Mongolia in order to reveal the distribution pattern and habitat characteristics of the ostracods. The identification of a total of 32,182 valves indicates that the dominant ostracod in Dali Lake is L. inopinata, which includes unnoded, 1-, 2- and 3-node and 1-carina phenotypes. The distribution of L. inopinata is affected both by the water depth and by the sand content of the substrate, and the phenotypes show their maximum abundances in the intermediate zone of the lake. All the phenotypes of L. inopinata display a similar preference for water depth and substrate, implying that the occurrence of different phenotypes is controlled by other factors. The age structure of L. inopinata is mainly related to the sand content, with the percentage of adults increasing and that of early juveniles decreasing with increasing sand content. Our data suggest that the occurrence of L. inopinata is closely related to water depth and substrate grain size, and different phenotypes of L. inopinata respond in a similar pattern to water depth and substrate.
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DOI：
--
发表时间：
2002
期刊：
--
影响因子：
--
作者：
T. Braak;F. Cateten;P. Šmilauer
通讯作者：
T. Braak;F. Cateten;P. Šmilauer
DOI：
--
发表时间：
1988-08
期刊：
--
影响因子：
--
作者：
P. Deckker;J. Colin;J. Peypouquet
通讯作者：
P. Deckker;J. Colin;J. Peypouquet
影响因子：
2.6
作者：
Yu Yin;W. Geiger;K. Martens
通讯作者：
Yu Yin;W. Geiger;K. Martens
影响因子：
2.6
作者：
D. Horne;K. Martens
通讯作者：
D. Horne;K. Martens
影响因子：
2.6
作者：
J. Bunbury;K. Gajewski
通讯作者：
J. Bunbury;K. Gajewski