Vestnik Zoologii

Volume 41, No. 1 (January-February, 2007)
abstracts

Information Factors of Pathosystems Organisation and Their Coevolution on an Example of Regulation of Onthogenesis and Reproduction of Acari and Insecta and Synchronization of Their Phylogenesis with Angiospermae. Mitrofanov V. I., Fadeev Yu. M., Man’ko A. V., Myttus E. R., Popov S. Ya., Khodakov G. V., Khaustov A. A., Yagodinskaya L. P. — Izoprenoid regulation of ontogenesis of organisms, demographic processes in structure of populations and also evolution and adaptation of species are considered. Theoretical substantiations of its practical use for management of population growth in rare species conservation and in plant pathogene control are attempted based on analysis of birth and death rate categories (productivity), which form the life tables.
Key words: terpenoids, biochemical regulation, ontogenesis, phylogenesis, adaptogenesis, metabolism of ecosystems.

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Non-Unionid Freshwater Bivalves (Sphaeriidae, Corbiculidae, Dreissenidae) of North American Fauna. Korniushin A. V. — The article concerns recent representatives of the North American freshwater bivalve mollusks from the three families: Sphaeriidae, Corbiculidae and Dreissenidae. Since only the first family contains aborigine North American species, the paper is focused on this group. The Corbiculidae are represented by a single species (Corbicula fluminea) and Dreissenidae by two species (Dreissena polymorpha and D. bugensis) introduced from Europe and Asia.
Key words: Mollusca, Bivalvia, Sphaeriidae, Corbiculidae, Dreissenidae, North America.

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Life Cycle of the Trematode Halipegus japonicus ( Halipegidae) in Primorskiy Kray (Russia). Besprozvannykh V. V. — By the experimental studies, the life cycle of the trematode Halipegus japonicus Yamaguti, 1936 is shown to involve the Helicorbis sujfunensis and Polypylis semiglobosa as the first intermediate hosts, ostracode crustaceans as the second and larvae of the dragonflies Cordulia and Aeschna as the third intermediate host. A possibility of involvement of the fish species Percottus glehni and Pseudobagrus fulvidraco into the life cycle of the trematode is shown; the parasite is localized in the fish esophagus on its early stages.
Key words: Halipegus japonicus, cercaria, metacercaria, marita, life cycle.

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A New Genus and Species of the Family Hypogastruridae (Collembola) from Skelskaya Cave in the Crimea. Vargovitsh R. S. — Taurogastrura skelica gen. et sp. n. of the family Hypogastruridae from Skelskaya Cave in the Crimean Mountains is described. The new genus belongs to the “hypogastrurian” lineage of genera with reduced number of ommatidia.
Key words: Collembola, Hypogastruridae, new genus, new species, cave, Crimea, Ukraine.

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Species Diversity and Distribution of Plant-Inhabiting Phytoseiid Mites (Parasitiformes, Phytoseiidae) in Kaniv Reserve. Kolodochka L. A., Omeri I. D. — The species diversity and distribution of plant-inhabiting phytoseiid mites (Parasitiformes, Phytoseiidae) in Kaniv Natural Reserve is studied. Two mite collections (1966–1972 and 2005) are compared. Twenty nine phytoseiid species are recorded. Occurrence of species is calculated and their association to different vegetations and plant species is shown.
Key words: Parasitiformes, Phytoseiidae, phytoseiid mites, Kaniv Natural Reserve, Central Wood-and-Steppe, Ukraine.

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General Characteristics of the Waterfowl Fauna in Volyn Forest-Steppe. Khymyn M. V. — Volyn Forest-steppe is situated on the Western part of Ukraine and occupies territory about 10 000 km2. Species list of waterfowl and status were identified in the studied territory for the first time. Total of 43 waterfowl species were recorded according to field research during 1977–2004 and bibliogra-phy. Among them, 19 species are breeding (13 species — regular breeding, 3 — irregular breeding, 3 — extinct on breeding), 11 — recorded on passage and 13 — vagrants (1 — accidentally breeding). Besides 35 species registered on spring migrations, 22 — in breeding period, 35 — on autumn migration, 28 — in winter (2 species — regular wintering, 12 — irregular wintering, 2 — accidentally wintering, 12 — condi-tionally wintering). Structure of fauna types is following: 5 species belonging to European type, 11 — Transpalaearctic, 1 — European-Chinese, 8 — Siberian, 10 — Arctic, 4 — Mediterranean and 4 — not ascertained origin. 7 species of waterfowl included in Red Data Book of Ukraine, 1 — European Red List and 3 — Red List IUCN.
Key words: waterfowl, ornithofauna, Volyn Forest-Steppe, Western Ukraine.

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The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution. Dzeverin I. I. — Evolutionary changes of characters formed in ontogeny by developmental induction are modeled for an infinite population and for replicate finite populations under a mutation — drift equilibrium. Induction occurs by interaction of reactants, which must therefore coincide in time intervals of their abilities to react. This mechanism is being damaged in evolution of useless structures by random mutations in genes that control simultaneous formations of reactants, whereas mutational effects on important structures are restrained by selection. The breakdown of induction mechanisms produces increased variability and degeneration in vestigial characters. Quantitative estimations are illustrated by data regarding regressive trends in some groups of mammals. Time spans sufficient for complete loss of vestigial organs obtained from the modelings are much smaller than the periods of macroevolutionary changes. Certain functional value and the genetic correlation with important structures are the most probable mechanisms that could prevent the rapid loss of vestigial structures.
Key words: vestigial organ, threshold character, quantitative character, developmental induction, neutral evolution, regressive evolution, morphometric variation, mammals.

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Mollusks of the Genus Planorbis (Gastropoda, Planorbinae) in the Fauna of Ukraine: Diagnostics, Peculiarities of Distribution and Ecology. Uvayeva O. ². — The complex analysis of conchological and anatomical characteristics of species of the genus Planorbis using methods of multi-measuring statistics allows precise identification of 3 species — P. planorbis, P. philippianus, P. carinatus. The ratio of width of last whorl (measured from apical side) to width of penultimate whorl, ratio of width of penultimate whorl to width of prepenultimate whorl, ratio of praeputium length to penis sheath length are shown to have diagnostic importance. New data on distribution and ecology of mollusks of the genus Planorbis are provided.
Key words: Mollusca, Gastropoda, Planorbis, taxonomy, distribution, ecology.

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Free-Living Kinetoplastids (Protista, Euglenozoa, Kinetoplastea) from a Small Water Body in Zhitomir. Shevchuk S. Yu. — Free-living kinetoplastids found in the small water body of Zhitomir district are figured and morphological features of these protists are described.
Key words: morphology, heterotrophic or colourless flagellates, fauna, Kinetoplastea.

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Larvae of the Mordellid Beetle Mordellistena kraatzi (Coleoptera, Mordellidae). Odnosum V. K. — Larvae of the mordellid beetle Mordellistena kraatzi Emery, 1876 is described.
Key words: Coleoptera, Mordellidae, Mordellistena kraatzi, larvae, diagnostics described.

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Peculiarities of Fox (Vulpes vulpes) Technogenic Shelters Using. Legeida I. S. — The frequency analysis shows that urban areas (pipes of gas transport systems under construction, used or abandoned reclamation system, junk heap, etc.) are more preferable in autumn-winter season compared with usual nature refuges by fox using different types of shelters. In such shelters, this species is more vulnerable because of fox dogs. It is possible that by use artificial shelters, while the natural refuges (burrows, dens) are available enough, the foxes try to avoid ectoparasite overloading.
Key words: fox, adaptation, natural burrows, technogenic shelters, ectoparasites.

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