Publications by authors named "D O Solovyeva"
Article Synopsis
- Examining genetic diversity is essential for conservation planning of endangered species, like the scaly-sided merganser (SSME), which faces challenges due to recent habitat changes and demographic shifts.
- The study investigated the genetic structure of SSME populations using nuclear microsatellite markers and mitochondrial DNA, revealing limited female-inherited genetic diversity but high nuclear diversity, with weak divergence between breeding populations.
- Findings suggest that recent habitat fragmentation from human activities, rather than historical isolation events, has caused the genetic divergence, indicating conservation efforts should prioritize habitat protection for both the Russian and Chinese SSME populations.
Global climate change has altered the timing of seasonal events (i.e., phenology) for a diverse range of biota.
View Article and Find Full Text PDFNanoscale morphological features of branched processes of glial cells may be of decisive importance for neuron-astrocyte interactions in health and disease. The paper presents the results of a correlation analysis of images of thin processes of astrocytes in nervous tissue of the mouse brain, which were obtained by scanning probe microscopy (SPM) and transmission electron microscopy (TEM) with high spatial resolution. Samples were prepared and imaged using a unique hardware combination of ultramicrotomy and SPM.
View Article and Find Full Text PDFDeveloping technologies for efficient targeted drug delivery for oncotherapy requires new methods to analyze the features of micro- and nanoscale distributions of antitumor drugs in cells and tissues. A new approach to three-dimensional analysis of the intracellular distribution of cytostatics was developed using fluorescence scanning optical-probe nanotomography. A correlative analysis of the nanostructure and distribution of injected doxorubicin in MCF-7 human breast adenocarcinoma cells revealed the features of drug penetration and accumulation in the cell.
View Article and Find Full Text PDFClimate change affects timing of reproduction in many bird species, but few studies have investigated its influence on annual reproductive output. Here, we assess changes in the annual production of young by female breeders in 201 populations of 104 bird species (N = 745,962 clutches) covering all continents between 1970 and 2019. Overall, average offspring production has declined in recent decades, but considerable differences were found among species and populations.
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