Coupled morphologic and demographic responses of Opeas striatissimum (Gastropoda: Subulinidae) to latest Pleistocene to early Holocene climate fluctuations

Dong, Yajie; Wu, Nan; Li, Fengjiang; Lü, Houyuan

doi:10.1016/j.palaeo.2020.110101

Cited by 3 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sampling was undertaken on 1) the upper part of loess unit L1 (L1-1) which was deposited since marine isotope stage 2 (MIS2); and 2) the lower part of the Holocene paleosol unit (S0) (Supplementary Figure S1). The chronology of the six loess-paleosol sequences is based on high-resolution optically stimulated luminescence (OSL) dating for the Linxia, Huanxian, Jingchuan and Yaoxian sections (Lai and Wintle, 2006;Dong et al, 2015), and on the 14 C ages of mollusk shells from the Jixian (Dong et al, 2021a) and Shuozhou sections (Supplementary Figure S2). The agedepth models were constructed by polynomial fits through a number of successive absolute dates.…”

Section: Loess Sequences and Chronologymentioning

confidence: 99%

Rapid Northwestward Extension of the East Asian Summer Monsoon Since the Last Deglaciation: Evidence From the Mollusk Record

Dong

et al. 2021

Front. Earth Sci.

Self Cite

View full text Add to dashboard Cite

The magnitude and rate of the expansion of the East Asian summer monsoon (EASM) rain belt under future climatic warming are unclear. Appropriate ecological proxy data may provide an improved understanding of the spatial extension of the EASM during past warming intervals. We reconstructed the spatiotemporal pattern of the extension of the EASM since the Last Glacial Maximum (LGM), using six well-dated mollusk fossil sequences from Chinese loess sections located on the modern northern edge of the EASM. The abundance of typical dominant mollusk species indicative of EASM intensity shows a delayed response, from ∼17 ka in the southeastern sections to ∼9 ka in the northwestern sections, during the last deglacial warming. Isoline plots based on a mollusk data synthesis show that the mollusk EASM indicators have a northeast–southwest zonal distribution for both the present-day, the cold LGM, and the warm mid-Holocene, which is consistent with the spatial pattern of modern precipitation. The resulting estimated expansion rate of EASM intensity accelerated during ∼12–9 ka (∼50 km/ka), which corresponds to the early Holocene interval of rapid climatic warming, a northwestward shift of ∼150 km compared to today. This implies that the northern fringe of the EASM in northern China will become wetter in the coming century, under moderate warming scenarios.

show abstract

Section: Loess Sequences and Chronologymentioning

confidence: 99%