Early Carboniferous brachiopod fauna from the Altai Mountains, northern Xinjiang, Central Asia: Systematics, and palaeobiogeographic and palaeogeographical implications

2021 ◽  
Author(s):  
Zhen Guo ◽  
Zhong‐Qiang Chen ◽  
Zhuoting Liao
Keyword(s):  
Central Asia ◽  
Early Carboniferous ◽  
Altai Mountains ◽  
Northern Xinjiang ◽  
Brachiopod Fauna

The Elachistidae of southern Siberia and Central Asia, with descriptions of five new species (Lepidoptera)¹

1992 ◽  
Vol 3 (4) ◽  
pp. 177-194 ◽  
Author(s):  
Lauri Kaila
Keyword(s):  
New Species ◽  
Central Asia ◽  
Baikal Region ◽  
Tianshan Mountains ◽  
Previous Literature ◽  
Altai Mountains ◽  
Southern Siberia

The Elachistidae material collected during the joint Soviet-Finnish entomological expeditions to the Altai mountains, Baikal region and Tianshan mountains of the previous USSR is listed. Previous literature dealing with the Elachistidae in Central Asia is reviewed. A total of 40 species are dealt with, including descriptions of five new species: Stephensia jalmarella sp. n. (Altai), Elachista baikalica sp. n. (Baikal), E. talgarella sp. n. (southern Kazakhstan), E. esmeralda sp. n. (southern Kazakhstan) and E. filicornella sp. n. (southern Kazakhstan). The previously unknown females of E. bimaculata Parenti, 1981 and Biselachista zonulae Sruoga, 1992 are described.

Radial growth responses of two dominant conifers to climate in the Altai Mountains, Central Asia

2021 ◽  
Vol 298-299 ◽  
pp. 108297
Author(s):  
Jian Kang ◽  
Shaowei Jiang ◽  
Jacques C. Tardif ◽  
Hanxue Liang ◽  
Shaokang Zhang ◽  
...  
Keyword(s):  
Central Asia ◽  
Radial Growth ◽  
Altai Mountains ◽  
Growth Responses

scholarly journals Identification of Long-Range Transport Pathways and Potential Source Regions of PM2.5 and PM10 at Akedala Station, Central Asia

Atmosphere ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1183
Author(s):  
Hanlin Li ◽  
Qing He ◽  
Xinchun Liu
Keyword(s):  
Central Asia ◽  
Transport Pathways ◽  
Air Masses ◽  
Source Areas ◽  
Northern Xinjiang ◽  
Source Regions ◽  
Potential Source ◽  
Western Mongolia ◽  
Pm2.5 And Pm10 ◽  
Eastern Kazakhstan

Cluster analyses, potential source contribution function (PSCF) and concentration-weight trajectory (CWT) were used to identify the main transport pathways and potential source regions with hourly PM2.5 and PM10 concentrations in different seasons from January 2017 to December 2019 at Akedala Station, located in northwest China (Central Asia). The annual mean concentrations of PM2.5 and PM10 were 11.63 ± 9.31 and 19.99 ± 14.39 µg/m3, respectively. The air pollution was most polluted in winter, and the dominant part of PM10 (between 54 to 76%) constituted PM2.5 aerosols in Akedala. Particulate pollution in Akedala can be traced back to eastern Kazakhstan, northern Xinjiang, and western Mongolia. The cluster analyses showed that the Akedala atmosphere was mainly affected by air masses transported from the northwest. The PM2.5 and PM10 mainly came with air masses from the central and eastern regions of Kazakhstan, which are characterized by highly industrialized and semi-arid desert areas. In addition, the analyses of the pressure profile of back-trajectories showed that air mass distribution were mainly distributed above 840 hPa. This indicates that PM2.5 and PM10 concentrations were strongly affected by high altitude air masses. According to the results of the PSCF and CWT methods, the main potential source areas of PM2.5 were very similar to those of PM10. In winter and autumn, the main potential source areas with high weighted PSCF values were located in the eastern regions of Kazakhstan, northern Xinjiang, and western Mongolia. These areas contributed the highest PM2.5 concentrations from 25 to 40 µg/m3 and PM10 concentrations from 30 to 60 µg/m3 in these seasons. In spring and summer, the potential source areas with the high weighted PSCF values were distributed in eastern Kazakhstan, northern Xinjiang, the border between northeast Kazakhstan, and southern Russia. These areas contributed the highest PM2.5 concentrations from 10 to 20 µg/m3 and PM10 concentrations from 20 to 60 µg/m3 in these seasons.

Holocene vegetational and climatic variation in westerly-dominated areas of Central Asia inferred from the Sayram Lake in northern Xinjiang, China

2012 ◽  
Vol 56 (3) ◽  
pp. 339-353 ◽  
Author(s):  
QingFeng Jiang ◽  
JunFeng Ji ◽  
Ji Shen ◽  
Ryo Matsumoto ◽  
GuoBang Tong ◽  
...  
Keyword(s):  
Central Asia ◽  
Climatic Variation ◽  
Northern Xinjiang

Identification of rock weathering and environmental control in arid catchments (northern Xinjiang) of Central Asia

2013 ◽  
Vol 66 ◽  
pp. 277-294 ◽  
Author(s):  
Bingqi Zhu ◽  
Jingjie Yu ◽  
Xiaoguang Qin ◽  
Patrick Rioual ◽  
Yichi Zhang ◽  
...  
Keyword(s):  
Central Asia ◽  
Environmental Control ◽  
Rock Weathering ◽  
Northern Xinjiang

scholarly journals The earliest Asian bats (Mammalia: Chiroptera) address major gaps in bat evolution

2021 ◽  
Vol 17 (6) ◽  
pp. 20210185
Author(s):  
Matthew F. Jones ◽  
Qiang Li ◽  
Xijun Ni ◽  
K. Christopher Beard
Keyword(s):  
Central Asia ◽  
Junggar Basin ◽  
Placental Mammal ◽  
Early Eocene ◽  
Northern Xinjiang ◽  
Dental Evolution ◽  
Bat Evolution ◽  
Postcranial Anatomy

Bats dispersed widely after evolving the capacity for powered flight, and fossil bats are known from the early Eocene of most continents. Until now, however, bats have been conspicuously absent from the early Eocene of mainland Asia. Here, we report two teeth from the Junggar Basin of northern Xinjiang, China belonging to the first known early Eocene bats from Asia, representing arguably the most plesiomorphic bat molars currently recognized. These teeth combine certain bat synapomorphies with primitive traits found in other placental mammals, thereby potentially illuminating dental evolution among stem bats. The Junggar Basin teeth suggest that the dentition of the stem chiropteran family Onychonycteridae is surprisingly derived, although their postcranial anatomy is more primitive than that of any other Eocene bats. Additional comparisons with stem bat families Icaronycteridae and Archaeonycteridae fail to identify unambiguous synapomorphies for the latter taxa, raising the possibility that neither is monophyletic as currently recognized. The presence of highly plesiomorphic bats in the early Eocene of central Asia suggests that this region was an important locus for the earliest, transitional phases of bat evolution, as has been demonstrated for other placental mammal orders including Lagomorpha and Rodentia.

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