A new sand mite of the genus Euschoengastia from Tanggula Mountains, Qinghai, China (Acari: Trombiculidae)

2011 ◽  
Vol 16 (3) ◽  
pp. 298
Author(s):  
YING MA
Keyword(s):  
Tanggula Mountains

scholarly journals Genetic Structure and Eco-Geographical Differentiation of Lancea tibetica in the Qinghai-Tibetan Plateau

Genes ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 97 ◽  
Author(s):  
Xiaofeng Chi ◽  
Faqi Zhang ◽  
Qingbo Gao ◽  
Rui Xing ◽  
Shilong Chen
Keyword(s):  
Genetic Diversity ◽  
Cluster Analysis ◽  
Gene Flow ◽  
Tibetan Plateau ◽  
Environmental Changes ◽  
Restricted Gene Flow ◽  
Principal Coordinates Analysis ◽  
Principal Coordinates ◽  
Genetic Diversity And Structure ◽  
Tanggula Mountains

The uplift of the Qinghai-Tibetan Plateau (QTP) had a profound impact on the plant speciation rate and genetic diversity. High genetic diversity ensures that species can survive and adapt in the face of geographical and environmental changes. The Tanggula Mountains, located in the central of the QTP, have unique geographical significance. The aim of this study was to investigate the effect of the Tanggula Mountains as a geographical barrier on plant genetic diversity and structure by using Lancea tibetica. A total of 456 individuals from 31 populations were analyzed using eight pairs of microsatellite makers. The total number of alleles was 55 and the number per locus ranged from 3 to 11 with an average of 6.875. The polymorphism information content (PIC) values ranged from 0.2693 to 0.7761 with an average of 0.4378 indicating that the eight microsatellite makers were efficient for distinguishing genotypes. Furthermore, the observed heterozygosity (Ho), the expected heterozygosity (He), and the Shannon information index (I) were 0.5277, 0.4949, and 0.9394, respectively, which indicated a high level of genetic diversity. We detected high genetic differentiation among all sampling sites and restricted gene flow among populations. Bayesian-based cluster analysis (STRUCTURE), principal coordinates analysis (PCoA), and Neighbor-Joining (NJ) cluster analysis based on microsatellite markers grouped the populations into two clusters: the southern branch and the northern branch. The analysis also detected genetic barriers and restricted gene flow between the two groups separated by the Tanggula Mountains. This study indicates that the geographical isolation of the Tanggula Mountains restricted the genetic connection and the distinct niches on the two sides of the mountains increased the intraspecific divergence of the plants.

scholarly journals The Tanggula Mountains enhance population divergence in Carex moorcroftii: a dominant sedge on the Qinghai-Tibetan Plateau

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Wensheng Liu ◽  
Yao Zhao ◽  
Danhui Qi ◽  
Jianling You ◽  
Yin Zhou ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Population Divergence ◽  
Tanggula Mountains

Glacier change in the Tanggula Mountains, Tibetan Plateau, in 1969–2015

2019 ◽  
Vol 16 (11) ◽  
pp. 2663-2678 ◽  
Author(s):  
Hong-yu Duan ◽  
Xiao-jun Yao ◽  
Shi-yin Liu ◽  
Yong-peng Gao ◽  
Miao-miao Qi ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Glacier Change ◽  
Tanggula Mountains

scholarly journals Region-Wide Glacier Mass Budgets for the Tanggula Mountains between ∼1969 and ∼2015 Derived from Remote Sensing Data

2017 ◽  
Vol 49 (4) ◽  
pp. 551-568 ◽  
Author(s):  
An’an Chen ◽  
Ninglian Wang ◽  
Zhen Li ◽  
Yuwei Wu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Remote Sensing Data ◽  
Sensing Data ◽  
Tanggula Mountains

Jurassic Ostreoida (Bivalvia) from China (Tanggula Mountains, Qinghai-Xizang Plateau) and their Paleobiogeographic context

2002 ◽  
Vol 76 (3) ◽  
pp. 431-446 ◽  
Author(s):  
Jingeng Sha ◽  
Paul L. Smith ◽  
Franz T. Fürsich
Keyword(s):  
Ocean Current ◽  
Northwestern Pacific ◽  
Continental Margins ◽  
High Fertility ◽  
Northwest Europe ◽  
Xizang Plateau ◽  
Planktotrophic Larvae ◽  
Tanggula Mountains ◽  
North And South ◽  
Very High

The Bathonian-Oxfordian ostreid fauna from the main ridge of the Tanggula Mountains of the Qinghai-Xizang Plateau, China, consists of six taxa: Actinostreon gregareum (J. Sowerby, 1815), Actinostreon sp. A, Liostrea birmanica Reed, 1936, Gryphaea (Bilobissa) bilobata (J. de C. Sowerby, 1835), Nanogyra nana (J. Sowerby, 1822) and Eligmus rollandi Douvillé 1907. Liostrea birmanica is only known from the eastern Tethys and south Xizang area, Eligmus rollandi is limited to the Tethys, G. (B.) bilobata occurs in northwest Europe and the northern Tethys, whereas A. gregareum and possibly N. nana have a complex global distribution between paleo-latitudes 60° north and south.Actinosteon gregareum first occurs in the Sinemurian of northern Chile, and during the Toarcian it underwent trans-Pacific dispersal to arrive in east Africa. During the Bajocian it dispersed rapidly along the southern and northwestern margins of the Tethys, northwestern Europe, and western Canada (Stikine Terrane), but it disappeared from South America in the Aalenian. It occupied Kachchh, southern Xizang, and the northern and northeastern Tethys as early as the Bathonian but it did not reach the northwestern Pacific until the Late Jurassic. The species declined after the Kimmeridgian, being limited to northern Africa (southern Tunisia) and the northwestern Pacific (Japan) during the Tithonian. By the end of the Jurassic it was extinct.Actinostreon gregareum apparently possessed very high fertility typical of opportunists that rapidly colonize new habitats. As a result of ocean current dispersal, presumably by both planktotrophic larvae and postlarval pseudoplankton, it rapidly spread along continental margins and island chains. Occasionally, either directly or by island hopping, it crossed the vast Tethys and Pacific oceans, colonizing all warm and temperate waters at low and intermediate paleolatitudes. It may also have used the Hispanic Corridor as a means of dispersal between the Tethys and Pacific oceans as early as the Toarcian.

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