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  1. No Access

    Article

    Composition of Couples, Biotopic Preferences, and Relative Life Duration of Birds in a Hybrid Yellowhammer (Еmberiza citrinella) and Pine Bunting (E. leucocephalos) Population (Passeriformes, Emberizidae) in the Altai Mountains

    The relationships between the yellowhammer (Еmberiza citrinella) and the pine bunting (Еmberiza leucocephalos) represent quite a rare case of mass hybridization in a broad sympatry zone. The hybrid population was...

    A. S. Rubtsov in Biology Bulletin (2022)

  2. No Access

    Article

    Petrochemical Industry in Russia: State of the Art and Prospects for Development

    The state of the art of the petrochemical industry in Russia was analyzed. The data obtained from Russian companies revealed extremely strong dependence of this branch of industry on imported technologies and ...

    E. A. Golysheva, O. V. Zhdaneev, V. V. Korenev… in Russian Journal of Applied Chemistry (2020)

  3. No Access

    Article

    Key Technology Development Priorities for the Oil Refinery Sector in Russia

    More than 50 installations for secondary oil refining of the total cost of more than 1.5 trillion rubles (about $20 bln) are planned to be put into operation in Russia by the year 2035. Construction of these i...

    O. V. Zhdaneev, V. V. Korenev, A. S. Rubtsov in Russian Journal of Applied Chemistry (2020)

  4. No Access

    Article

    Computer Simulation Model of a Hybrid Zone: Assortative Mating in the Role of Selection against Hybrids

    The assumption of low hybrid fitness serves as the cornerstone in the logical justification of the discreteness of species in terms of the biological concept. The majority of natural hybrid zones are narrow an...

    A. S. Rubtsov in Biology Bulletin Reviews (2020)

  5. No Access

    Article

    Relations between the Yellowhammer (Emberiza citrinella) and the Pine Bunting (Emberiza leucocephalos) in the Forested Steppe of the Trans-Urals

    We studied the phenotypic composition of the populations and variability of songs in two bunting species in three localities on the western border of the sympatry zone: in the southern part of Tyumen’ oblast a...

    A. S. Rubtsov, V. V. Tarasov in Biology Bulletin (2017)

  6. No Access

    Article

    Reproductive isolation and the notion of species in birds

    Biological diversity is continuous as a result of evolutionary processes, whereas the language for its description is symbolic and, therefore, discrete. Thus, the main question of the “species problem” is as f...

    A. S. Rubtsov in Biology Bulletin (2015)

  7. No Access

    Article

    Phylogeny reconstruction of the yellowhammer (Emberiza citrinella) and pine bunting (Emberiza leucocephala) based on song and morphological characters

    The yellowhammer and pine bunting represent a quite rare case of mass hybridization in a broad secondary contact zone. Previously, it was shown that the two forms did not differ by mitochondrial DNA (Irwin et ...

    A. S. Rubtsov, A. S. Opaev in Biology Bulletin (2012)

  8. No Access

    Article

    Effect of mTT and aging on the structure and properties of biphase stainless steel

    A. K. Grigor'ev, G. E. Kodzhaspirov, V. V. Obukhovskii… in Metal Science and Heat Treatment (1978)