Vestnik Zoologii

Volume 43, No. 3 (May-June, 2009)
abstracts

Conception of Crossed Populations: Application in Cyclopoida Taxonomy. Monchenko V. I., Samchyshyna L. V. — The conception of crossed populations in wide practice of taxonomic investigations in Cyclopoida is used for the first time. Applying this conception in taxonomy of cyclopoid copepods we based on revealed facts of the coexistence of sibling species which keep a little morphological hiatus. Hence, next pairs of species we consider as independent ones: Eucyclops speratus (Lilljeborg) and Å. serrulatus (Lilljeborg); Paracyclops poppei (Rehberg) and P. fimbriatus (Fischer); Megacyclops latipes (Lowndes), M. viridis (Jurine) and M. gigas (Claus); Diacyclops clandestinus (Kiefer) and D. languidoides (Lilljeborg); D. hypnicola (Gurney) and D. languidoides (Lilljeborg); D. odessanus (Schmankevitsch) and D. bicuspidatus (Claus); Microcyclops rubellus (Lilljeborg) and M. varicans (Sars); Halicyclops septentrionalis (Kiefer) and H. neglectus (Kiefer). Facts of coexistence of Acanthocyclops americanus (Marsh) and its form A. americanus f. spinosa (Monchenko) differing by only one qualitative feature (spine or setà on outer edge on endopodite P4 distal segment) that has no transitive manifestation do not allow us to consider morphological form A. americanus f. spinosa as a separated species from the type A. americanus.
Key words: Cyclopoida, sibling species, coexistence, morphological hiatus, crossed populations.

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Heliozoans (Centrohelida, Actinophryida) of Sphagnous Bogs in Central Russia. Leonov M. M., Myl’nikov A. P. — The species composition of the heliozoans species in sphagnous bogs in Central Russia is studied by the example of boggy water bodies in Usman pinery of Middle Russian Wood-and-Steppe Zone. In the studied water bodies, 13 species and 2 forms of heliozoans from 4 taxonomic groups (centrohelids, desmothoracids, actinophryids and rotosphaerids) were found. Among them 9 species recorded in Russia for the first time. The cosmopolitism of the found heliozoans is discussed.
Key words: heliozoans, Centrohelida, Desmothoracida, Actinophryida, Rotosphaerida, sphagnum bogs.

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Strongylid Community Structure of the Przewalski’s Horses (Equus ferus Przewalskii) from the Biosphere Reserve “Askania-Nova”, Ukraine. Kuzmina T. A., Zvegintsova N. S., Zharkikh T. L. — Spe¬cies composition and the structure of strongylid community of the Przewalski’s horse (Equus ferus przewalskii Poljakov, 1881) semi-free population at the “Askania-Nova” Biosphere Reserve were stu¬died by the in vivo method of diagnostic deworming. After deworming of 24 adult Przewalski’s horses by the anthelmintic “Univerm” (0.2% aversectin Ñ, Russia), 25,815 strongylid specimens were collec¬ted and identified. Thirty-one strongylid species of 12 genera were found including 6 species of the subfamily Strongylinae and 25 — of Cyathostominae. Nine to 18 strongylid species (average 14.5 ± 2.5) were found per horse. Cyathostomes (Cyathostominae) dominated in the Przewalski’s horse strongylid community: 9 species (Cyathostomum catinatum, C. pateratum, Cylicocyclus nassatus, C. insigne, C. leptostomum, C. ashworthi, Cylicostephanus longibursatus, C. goldi and C. minutus) were found in more than 80% of horses examined and composed 94.1% of the total number of strongylid collected. Stron¬gyles (Strongylinae) were found in 100% of the E. ferus przewalskii examined; prevalence of separate species was from 4.2% to 58.3%. The general structure of the strongylid community was multimodal with dominant (9 species), subdominant (4), background (4) and rare (14) species. The list of strongylid species found in the Przewalski’si horses in Ukraine was enlarged to 37 species.
Key words: Przewalski’s horses, Equus ferus przewalskii, strongylida, nematoda, diagnostic dewor¬ming, Ukraine.

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Dynamics of Content and Number of the Moths Species (Lepidoptera, Noctuidae) in Lugansk Natural Reserve (Ukraine). Klyuchko Z. F. — Results of long-term monitoring (1965–2007) of moths fauna in the “Striltsivskiy Steppe” Natural Reserve are summarized. Changes of species composition, moth number for each species and total numbers, species distribution, their seasonal dynamics, changes in ecological structure in reserve are analyzed for 318 species (from 144 genera).
Key words: Lepidoptera, Noctuidae, fauna, species composition, taxonomic analysis, distribution, seasonal dynamics, “Striltsivskiy Steppe” Natural Reserve.

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Species Structure and Catches of Anadromous and Freshwater Fishes of Lower Dnieper Estuarian System: Dynamics in XX Century and Comparison with Lower Danube. Verlatiy D. B., Mezhzherin S. V., Fedorenko L. V. — Information on catches and species composition of anadromous and freshwater species of cyclostomata and fishes of the Lower Dnieper community is summarized based on materials of 1931–2007. As the result, only 21 of the 47 species of the native community are shown to be extant. Anadromous and reophilous species are especially suffered. Modern catches in the Lower Dnieper are 6,4%, and without taking into account the invasive species, 4,4% compared to the level of 1930s. The catastrophic condition of the Lower Dnieper fish community is especially obvious in comparison with the situation in the Lower Danube, where losses of native fish species is less than one-quarter, and modern catches in the Ukrainian part of the Danube Delta are 34% of the previous level.
Key words: Lower Dnieper, Lower Danube, ichthyofauna, population numbers, fish stocks.

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Phytoseiid Mites (Parasitiformes, Phytoseiidae) on Plants in Trostyanets Dendrological Park (Ukraine). Omeri I. D. — Species composition and distribution of phytoseiid mites (Parasitiformes, Phytoseiidae) are studied studied on plants in Trostyanets state dendrological park NAS of Ukraine (Trostyanets village, Ichnya region, Chernigiv oblast, Ukraine) for the first time. Mites of twenty phytoseiid species from nine genera were found. Frequency of occurrence of each species is estimated as well as their relative biotopic allocation to both vegetation type and plant species.
Key words: phytoseiid mites, frequency of occurrence, relative biotopic allocation, Trostyanets state dendrological park NAS of Ukraine, forest-steppe, Ukraine.

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A Current State of Cave Dwelling Bat Species (Mammalia, Chiroptera) of the Crimea. Godlevskaya E. V., Ghazali M. A., Postawa T. — During summer and winter of 2004–2005 totally 64 artificial and natural underground objects in both plain and mountain Crimea were checked. Totally, for all the period of investigations, almost 60 thousands of individuals of 12 species were counted: including all known earlier troglophilic species of the region with the exception of Miniopterus schreibersii which remains to be extinct here. The base of species list by the maximum general quantity of individuals and number of roosts is compiled by Rhinolophus ferrumequinum (25.7% and 60%) and Myotis blythii (73.3% and 53%, accordingly). It was shown that in artificial underground shelters a general number of bats both in winter and summer in order higher than in caves and grottos of the mountain Crimea (26 060 and 3399 against 1904 and 272, accordingly). 12 key underground sites were determined, for all of them implementation or strengthening of protection measures are required, including by giving a protection status for 8 of them.
Key words: bats, Chiroptera, fauna, conservation, the Crimea, Ukraine.

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A New Species of the Genus Cymatosus (Diptera, Ulidiidae) from Central America, with a Key to Species. Kameneva E. P. — Cymatosus icarus Kameneva, sp. n. from Costa Rica is described. It differs from the four previously described species by the wing pattern with an additional arcuate hyaline stripe parallel to the wing margin, and a rounded brown spot in the middle of the wing disc, resembling that in Callistomyia icarus Osten Sacken (Tephritidae). A key to the species of the genus Cymatosus Enderlein and notes on other species are provided.
Key words: Diptera, Ulidiidae, Central America, new species.

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To Distribution of Some Species of the Gobies Family (Perciformes, Gobiidae) in the Waters of Ukraine. Manilo L. G. — Based on the materials of revision the family Gobiidae in stock collections of Zoological museum NMNH NASU it is established that finds of Benthophiloides brauneri Beling et Iljin, 1927, Caspiosoma caspium (Kessler, 1877) in the Dnieper river near Kyiv are erroneous. The mushroom goby Neogobius eurycephalus (Kessler, 1874) must be excluded from the fish checklist of the Danube Biosphere Reserve. The finds on the territory of Ukraine of the Caucasian River Goby Neogobius constructor (Nordmann, 1840) are unreliable. Gobius xanthocephalus Heymer et Zander, 1992 inhabits the Black Sea, including near the south shores of the Crimea, and Gobius auratus Risso, 1810 must be excluded from «The Red Data Book of Ukraine».
Key words: Gobiidae, species, subspecies, area, distribution, Black sea, Dnieper, Danube, estuaries.

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