Traces of Periglacial Slope Processes in the Relief and Quaternary Deposits on the South of the Far East

Короткий, А. М.; Korobov, V. V.; Skrylnik, G.P.

doi:10.15356/0435-4281-2010-4-47-57

Cited by 2 publications

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“…Last Glacial Maximum (LGM) and post-LGM dynamics of landscapes have been suggested as a driver of range and genetic structure dynamics in several sea duck species (Pearce et al, 2009;Tiedemann et al, 2004). In contrast to glaciated territories of the Northern Europe and Arctic North America, the LGM and post-LGM dynamics of climate and landscapes were not so dramatic in the South of Russian far East and in Northeast China Clime changes led to significant moving of the vegetation borders to the South (in LGM) and to the North (in mid-Holocene and during climatic optimum), especially well pronounced between 38 and 54 N. Cooling during the LGM was accompanied by the reduction of yearly precipitation (Belyanin et al, 2019;Korotky et al, 2010;Zhao et al, 2003). Thus landscapes, preferred for the SSME breeding (Xu, Solovyeva, et al, 2021b), shifted southward during the LGM and shifted northward in mid-Holocene.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and shallow genetic differentiation of the endangered scaly‐sided merganser Mergus squamatus

Shen,

Gong,

Solovyeva

et al. 2024

Ecology and Evolution

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Examining patterns of genetic diversity are crucial for conservation planning on endangered species, while inferring the underlying process of recent anthropogenic habitat modifications in the context potential long‐term demographic changes remains challenging. The globally endangered scaly‐sided merganser (SSME), Mergus squamatus, is endemic to a narrow range in Northeast Asia, and its population has recently been contracted into two main breeding areas. Although low genetic diversity has been suggested in the Russian population, the genetic status and demographic history of these individuals have not been fully elucidated. We therefore examined the genetic diversity and structure of the breeding populations of the SSME and investigated the relative importance of historical and recent demographic changes to the present‐day pattern of genetic diversity. Using 10 nuclear microsatellite (SSR) markers and mitochondrial DNA (mtDNA) control region sequences, we found limited female‐inherited genetic diversity and a high level of nuclear genetic diversity. In addition, analysis of both markers consistently revealed significant but weak divergence between the breeding populations. Inconsistent demographic history parameters calculated from mtDNA and bottleneck analysis results based on SSR suggested a stable historical effective population size. By applying approximate Bayesian computation, it was estimated that populations started to genetically diverge from each other due to recent fragmentation events caused by anthropogenic effects rather than isolation during Last Glacial Maximum (LGM) and post‐LGM recolonization. These results suggest that limited historical population size and shallow evolutionary history may be potential factors contributing to the contemporary genetic diversity pattern of breeding SSME populations. Conservation efforts should focus on protecting the current breeding habitats from further destruction, with priority given to both the Russian and Chinese population, as well as restoring the connected suitable breeding grounds.

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Section: Introductionmentioning

confidence: 99%

Genetic diversity and shallow genetic differentiation of the endangered scaly‐sided merganser Mergus squamatus

Shen,

Gong,

Solovyeva

et al. 2024

Ecology and Evolution

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Far-Eastern Specificity of the Relief Forms’ Asymmetry (By the Example of the Russian Far East)

Skrylnik

2021

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The purpose and objectives are to study the spatial-temporal anisotropy of the geomorphological processes and asymmetry of multi-ordinal forms of relief (by the example of the Russian Far East). The methods of “thorough study of the complex geographical envelope” (comparative-geographical, informational, paleogeographical) as well as other methods worked out by the author were used. The carried-out developments emphasizing the novelty of the study can be demanded in the practice of choice of optimum alternatives of the nature management with respect of minimizing the possible geo-ecologic risks.

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Traces of Periglacial Slope Processes in the Relief and Quaternary Deposits on the South of the Far East

Cited by 2 publications

References 0 publications

Genetic diversity and shallow genetic differentiation of the endangered scaly‐sided merganser Mergus squamatus

Genetic diversity and shallow genetic differentiation of the endangered scaly‐sided merganser Mergus squamatus

Far-Eastern Specificity of the Relief Forms’ Asymmetry (By the Example of the Russian Far East)

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