New insights on Late Quaternary Asian palaeomonsoon variability and the timing of the Last Glacial Maximum in southwestern China

Cook, Charles E.; Jones, Richard T.; Langdon, Peter G.; Leng, Melanie J.; Zhang, Enlou

doi:10.1016/j.quascirev.2011.01.003

Cited by 58 publications

(63 citation statements)

References 62 publications

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“…Generally speaking, the value of MAT for the potential habitats of the whole NASC at the LGM was only 2–4 °C lower than the present conditions (Table 3), considerably weaker than the average deviation (5–9.6 °C) at the global scale7980. This change corresponded to an elevation shift of less than 1000 m, which would be readily accommodated by a mid-high altitude montane small mammals, such as N. andersoni in the central and southern HDM, but less readily by high-elevation species, such as N. excelsior .…”

Section: Discussioncontrasting

confidence: 61%

An endemic rat species complex is evidence of moderate environmental changes in the terrestrial biodiversity centre of China through the late Quaternary

Ge¹,

Lu²,

Cheng³

et al. 2017

Sci Rep

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The underlying mechanisms that allow the Hengduan Mountains (HDM), the terrestrial biodiversity centre of China, to harbour high levels of species diversity remain poorly understood. Here, we sought to explore the biogeographic history of the endemic rat, Niviventer andersoni species complex (NASC), and to understand the long-term persistence of high species diversity in this region. In contrast to previous studies that have proposed regional refuges in eastern or southern of the HDM and emphasized the influence of climatic oscillations on local vertebrates, we found that HDM as a whole acted as refuge for the NASC and that the historical range shifts of NASC mainly occurred in the marginal regions. Demographic analyses revealed slight recent population decline in Yunnan and south-eastern Tibet, whereas of the populations in Sichuan and of the entire NASC were stable. This pattern differs greatly from classic paradigms of temperate or alpine and holarctic species. Interestingly, the mean elevation, area and climate of potential habitats of clade a (N. excelsior), an alpine inhabitant, showed larger variations than did those of clade b (N. andersoni), a middle-high altitude inhabitant. These species represent the evolutionary history of montane small mammals in regions that were less affected by the Quaternary climatic changes.

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Section: Discussioncontrasting

confidence: 61%

An endemic rat species complex is evidence of moderate environmental changes in the terrestrial biodiversity centre of China through the late Quaternary

Ge¹,

Lu²,

Cheng³

et al. 2017

Sci Rep

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“…During the last glaciation, Abies spp. occurred in 10 pollen records with reliable chronologies and sufficiently high sampling resolutions, covering the subtropical and temperate China (Liu and Ye, 1977; Zhou et al, 1978; Zhang et al, 1997; Sun and Li, 1999; Wu et al, 2002; Xu et al, 2002; Feng et al, 2007; Tang et al, 2007; Cook et al, 2011; see details in Table S1). …”

Section: Methodsmentioning

confidence: 99%

Elevation Shift in Abies Mill. (Pinaceae) of Subtropical and Temperate China and Vietnam—Corroborative Evidence from Cytoplasmic DNA and Ecological Niche Modeling

Shao

Zhang

Phan³

et al. 2017

Front. Plant Sci.

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The “elevational shift” scenario has been proposed as a model to explain the response of cold-adapted organisms to Quaternary climatic fluctuations in Europe and North America. However, the elevational shift model has not been well-explored in eastern Asia, which is more topographically complex than the other Northern Hemisphere biogeographic regions. Here, we evaluated the role of elevational shift in the closely related firs, or Abies Mill., of subtropical and temperate China. These firs are typical alpine trees with sensitivity to climate change. We tested the elevational shift hypothesis in firs of China using phylogeographic methods and ecological niche models. Our phylogeographic analyses comprised mitochondrial and chloroplast polymorphisms surveyed across 479 individuals from 43 populations representing 11 species. M1 of the 11 mitotypes and C1 of the 25 chlorotypes were inferred as the ancestral haplotype, and they had the widest distribution. The results of our phylogeographic survey revealed multiple centers of genetic diversity in distinct geographic regions and no latitudinal trend. Moreover, our results showed range expansions for seven taxa during the last glacial (64.9–18.2 or 32.5–9.1 kya), and this was consistent with the Quaternary fossil record of Abies in China. Taken together, our findings support a historical biogeographic pattern in firs of glacial expansions, probably through corridors at lower elevation, and interglacial fragmentations, through isolation at higher elevation peaks. Therefore, Abies in China probably undergoes elevational shift in response to climate change. Facing the forecasting global warming, the risk of several critically endangered firs was further enhanced as these species would have little escape space in situ to higher altitudes. According to our ENMs, we proposed an ex situ conservation strategy in the southern Hengduan Mountains region of south western China.

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“…Poaceae and Cyperaceae dominate the areas adjacent to the lake. Further details on the regional climate, catchment vegetation and geology are presented in Cook et al (2011Cook et al ( , 2012. Lake Shudu is located on the southeastern edge of the Tibetan Plateau, within the Shangri-La Pudacuo National Park (China's first national park) and the Three Parallel Rivers Scenic Area World Heritage Site (Nature Conservancy Council, 2011;UNESCO, 2010;.…”

Section: Regional Settingmentioning

confidence: 99%

Holocene environmental change at Lake Shudu, Yunnan Province, southwestern China

et al. 2012

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A Holocene palaeorecord from Lake Shudu, Yunnan Province, southwestern China is dominated by (1) a pronounced basin-wide sedimentary hiatus after ca. 7.2 kcal yr BP, spanning some 4,000 years and (2) significant changes in sediment source/supply and an increase in heavy metal influx coupled with a shift to more eutrophic lake conditions from ca. 0.9 kcal yr BP, lasting *300 years. The hiatus is most likely a due to a significant and abrupt reduction in sedimentation rates, the driver of which is unclear; although it appears likely to have been climatically driven. The environmental changes captured in the Lake Shudu palaeorecord provide unambiguous evidence of late Holocene anthropogenic activity, most likely linked to mining activity.

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New insights on Late Quaternary Asian palaeomonsoon variability and the timing of the Last Glacial Maximum in southwestern China

Cited by 58 publications

References 62 publications

An endemic rat species complex is evidence of moderate environmental changes in the terrestrial biodiversity centre of China through the late Quaternary

An endemic rat species complex is evidence of moderate environmental changes in the terrestrial biodiversity centre of China through the late Quaternary

Elevation Shift in Abies Mill. (Pinaceae) of Subtropical and Temperate China and Vietnam—Corroborative Evidence from Cytoplasmic DNA and Ecological Niche Modeling

Holocene environmental change at Lake Shudu, Yunnan Province, southwestern China

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