Investigation of the spatio-temporal variability in Eurasian Late Quaternary loess–paleosol sequences using a coupled atmosphere–ocean general circulation model

Bush, Andrew B. G.; Little, E C; Rokosh, Dean; White, Dustin; Rutter, N W

doi:10.1016/j.quascirev.2003.08.009

Cited by 14 publications

(7 citation statements)

References 68 publications

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“…This phenomenon was found in some studied species, for example, Aconitum gymnandrum (Wang et al 2009a), and Reaumuria soongarica (Li et al 2012). All studies suggest that the deserts in northwestern China increased substantially in size coupling with enhanced atmospheric subsidence and reduced moisture transport during the Quaternary glacial period (Bush et al 2004;Sun and Liu 2006;Sun et al 2009a). The expansion of Badain Jaran Desert and Tengger Desert are also happened during the LGM.…”

Section: Hypothetical Phylogeographical History Of Z Xanthoxylummentioning

confidence: 60%

Phylogeographical structure inferred from cpDNA sequence variation of Zygophyllum xanthoxylon across north-west China

Shi

Zhang

2015

J Plant Res

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Zygophyllum xanthoxylon, a desert species, displaying a broad east-west continuous distribution pattern in arid Northwestern China, can be considered as a model species to investigate the biogeographical history of this region. We sequenced two chloroplast DNA spacers (psbK-psbI and rpl32-trnL) in 226 individuals from 31 populations to explore the phylogeographical structure. Median-joining network was constructed and analysis of AMOVA, SMOVA, neutrality tests and distribution analysis were used to examine genetic structure and potential range expansion. Using species distribution modeling, the geographical distribution of Z. xanthoxylon was modeled during the present and at the Last Glacial Maximum (LGM). Among 26 haplotypes, one was widely distributed, but most was restricted to either the eastern or western region. The populations with the highest levels of haplotype diversity were found in the Tianshan Mountains and its surroundings in the west, and the Helan Mountains and Alxa Plateau in the east. AMOVA and SAMOVA showed that over all populations, the species lacks phylogeographical structure, which is speculated to be the result of its specific biology. Neutrality tests and mismatch distribution analysis support past range expansions of the species. Comparing the current distribution to those cold and dry conditions in LGM, Z. xanthoxylon had a shrunken and more fragmented range during LGM. Based on the evidences from phylogeographical patterns, distribution of genetic variability, and paleodistribution modeling, Z. xanthoxylon is speculated most likely to have originated from the east and migrated westward via the Hexi Corridor.

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Section: Hypothetical Phylogeographical History Of Z Xanthoxylummentioning

confidence: 60%

Phylogeographical structure inferred from cpDNA sequence variation of Zygophyllum xanthoxylon across north-west China

Shi

Zhang

2015

J Plant Res

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“…All field studies and computer simulations suggest that the deserts in northwestern China increased substantially in size with enhanced atmospheric subsidence and reduced moisture transport during the Quaternary glacial stages (e.g. Yang et al, 2002; Bush et al, 2004; Sun & Liu, 2006; Sun et al, 2009). The expansion of R. soongarica in its western and eastern distributions should have followed these periods of desert enlargement during the glacial stages (especially during the LGM).…”

Section: Discussionmentioning

confidence: 99%

“…1) began in the Pliocene when the northern QTP rose to its current altitude, at an average of 4000 m above sea level (Sun et al, 1998; Yang et al, 2006). Spatiotemporal simulations of loess–paleosol sequences from across the Asian interior suggested that the deserts of western China expanded considerably during the Quaternary glacial stages due to a decrease in the strength of the horizontal winds, enhanced atmospheric subsidence, and reduced moisture transport (Bush et al, 2004). However, little is known about how desert species in central Asia responded to past geological and climatic changes.…”

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confidence: 99%

Response of a desert shrub to past geological and climatic change: A phylogeographic study of Reaumuria soongarica (Tamaricaceae) in western China

Chen

Zhao

et al. 2012

J of Sytematics Evolution

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Past geological and climatic events have promoted intraspecific divergence and range shifts in numerous plant species. This is particularly true for temperate species in climate-sensitive regions. Few previous studies have examined whether such genetic footprints were also shaped in desert plants, which can survive in arid habitats and might be "static" under the past climatic oscillations. We therefore studied the phylogeographical history of Reaumuria soongarica, a shrub species that is widely distributed across the deserts of western China. We sequenced chloroplast DNA (cpDNA) fragments of 27 natural populations across western China. Eight cpDNA haplotypes were identified, which clustered into three clades. The clades were located in the western (clade II) or eastern regions (clades I and III) of western China. Analysis of molecular variance also supported this major partitioning (∼67%) of the cpDNA variation between regions. However, within each region, genetic differentiation was low (29%-37%) and a single dominant haplotype was fixed; this indicated past regional range expansion. The deep divergence and regional range expansions of this species may have corresponded to the most recent uplift of the Qinghai-Tibet Plateau and the development of desert ecosystems during the last glacial age in western China. This is the first study to show that the evolutionary history of plants in desert habitats has been seriously affected by past geological and climatic change.

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“…This hypothesis may be consistent with the high S/I ratio of Lake Hovsgol core during the last deglaciation (Figure 2a); however, it also implies high TS content with high δ 34 S value and S/I ratio during the Holocene. This is because continental interior Asia was a wetter climate during the Holocene as well as the last deglaciation than in the LGM (Bush, 2004;Bush et al, 2004). Therefore, the interpretation of Nara et al (2010) contradicts evidence of the low TS content of our core during the Holocene.…”

Section: Source and Process Of Sulfate Delivered To Lake Hovsgolmentioning

confidence: 79%

Siberian Permafrost Thawing Accelerated at the Bølling/Allerød and Preboreal Warm Periods During the Last Deglaciation

Katsuta

Matsumoto

Hase³

et al. 2019

Geophysical Research Letters

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This study investigated a continuous sediment core, retrieved from the deepest part in Lake Hovsgol, northwestern Mongolia. Its surrounds are occupied by a continuous Siberian permafrost zone. Distinct geochemical and lithological features suggest that the watershed soil was moistened during the last deglaciation, associated with climate amelioration. Especially, the calcareous glacial clay layers (ca 13.7 and ca 11.0 cal. ka BP), with high sulfur content peaks and positive shifts of δ 34 S values, well correlate with the timing of meltwater pulses 1A and 1B, leading to rapid warming such as Bølling/Allerød and Preboreal Holocene, respectively. This finding allows our interpretation for the calcareous glacial clay layers produced by landslide-induced debris flow, which resulted from intensive water discharge from rapid thawing of permafrost during the abrupt warming periods. Our correlation with Lake Baikal records suggests that these permafrost thawings have accelerated over the area of the Selenga drainage basin (continental interior Eurasia).

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Investigation of the spatio-temporal variability in Eurasian Late Quaternary loess–paleosol sequences using a coupled atmosphere–ocean general circulation model

Cited by 14 publications

References 68 publications

Phylogeographical structure inferred from cpDNA sequence variation of Zygophyllum xanthoxylon across north-west China

Phylogeographical structure inferred from cpDNA sequence variation of Zygophyllum xanthoxylon across north-west China

Response of a desert shrub to past geological and climatic change: A phylogeographic study of Reaumuria soongarica (Tamaricaceae) in western China

Siberian Permafrost Thawing Accelerated at the Bølling/Allerød and Preboreal Warm Periods During the Last Deglaciation

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