In memory of Yuri Sergeevich Balashov (25.XII.1931—28.IX.2012). P. 185-196.
Biographical notes describe the life and scientific activities of Yuri Balashov, an outstanding Russian parasitologist, the Chief Editor of Parazitologiya.
in RussianOn the contribution of Prof. Yu.S. Balashov to the fundamental parasitology. P. 197-203.
Brief review of main conceptions of Yu.S. Balasov in fundamental parasitology: types of host-parasite relations, evolution, transmissive infections, econiches, population structure, parasite communities.
in RussianThe main evolutionary trends in sensory organs and questing behavior of parasitiform ticks and mites (Parasitiformes). P. 204-211.
Studies of sensory organs in parasitiform mites by methods of scanning and transmitting electron microscopy and electrophysiology in Russia were initiated by Yu.S. Balashov. A review of the material accumulated since that time allows revealing the main trends in evolution of the morphology the main complicated sense organs (the Haller's organ, palpal and tarsal organs, and eyes). Tight correlation between the evolution of the questing behavior and of sensory organs was demonstrated.
in RussianIs parasitism of Metazoa the «one-way ticket»? P. 212-227.
Various data considered as possible cases where metazoans return form the obligate parasitism to free mode of life (a violation of ecological interpretation of Dollo's law). It is shown that among temporary and phase parasites their return to the free mode of life is a rare but not exceptional phenomenon. It is possibly to conclude that these cases are displayed only by those ectoparasitic arthropods, ancestors of which were predators. The only, although incompletely proven cases of the violation of Dollo's law among permanent parasites is suggested to be acariform mites of the family Pyroglyphidae (Acariformes: Psoroptoidea).
in RussianStudies of the biological age in adult taiga ticks Ixodes persulcatus (Ixodinae). P. 228-234.
The history of studies of the biological age in ixodid ticks is discussed. A method of estimation of the biological age in adult ticks of the genus Ixodes by the degree of fat inclusions in midgut cells and in the fat body is developed. An "age scale" for the determination of the calendar age was assumed.
in RussianDermal glands of water mites (Acariformes: Parasitengona: Hydrachnidae) and their possible eco-physiological significance. P. 235-244.
Functional and comparative morphology is the basis for investigation of animal kingdom, its diversity and possible evolution. Moreover, it is extremely valuable in understanding of functioning of the living systems in unity of their organ and tissue structures. In the present paper, the organization of dermal glands and their possible eco-physiological role in the life of adult water mites are analyzed on the basis of the available data and original investigations from the point of view of fundamental functional-morphological approaches in the study of various groups of arthropods developed by Prof. Yu.S. Balashov.
in RussianOrganization of studies of the "gnus" complex of bloodsucking dipterans (Diptera: Culicidae, Ceratopogonidae, Tabanidae) by Yu.S. Balashov. P. 245-260.
The paper gives a historical account of investigations of mosquitoes, black flies and horseflies carried out by the staff of the Laboratory of Parasitology, Zoological Institute RAS, supervised by a corresponding member of the Russian Academy of Sciences, Prof Yu.S. Balashov, during 1979—1994. The research team of the laboratory explored the local fauna, relative abundance, seasonal dynamics, diurnal activity, longevity of a mass flight activity, annual fluctuations of the number, and age content of populations of various mosquito, black fly and horsefly species in the territory of Leningrad, Novgorod and Pskov Provinces. Attack peculiarities of various horse fly species were studied with the use of individual labeling.
in RussianA list of main publications by Prof. Yu.S. Balashov. P. 261-273.
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