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The new species,
Zhigal'skii O.A., Belan O.R.
A combined analysis of the demographic and spatial structure of
Kovalenko E.E., Danilov I.G.
The diversity of the sacral-urostyle region in the family Bufonidae was analyzed by the method of spectra (Kovalenko, 1996). Potentialities of the sacrum diversity in bufonids and the whole order are estimated; certain prohibitory combinations of characters are considered. The composite sacrum, so-called synsacrum, in Anura is shown to be a myth, which was supported for a long time because of difficulties in description of this organ.
Two new subgenera and eight new species of Phalangopsinae are described from Sulawesi, Supiori, Mindoro, Palawan, Sumatra, and Cousin islands. Two former subgenera,
Gagarin V.G., Gusakov V.A.
Females and males of the rare free-living nematode species,
A description of four simple traps for collection of dendrobionts, as well as two light-traps for collecting non-light (apterous and larval) forms of invertebrates is given. The new traps make it possible to reveal migrations of entomophagous insects and pests in proper time alongside with the possibility to gain materials on phenology, dynamics, and other aspects of biology and ecology of entomophages. Such a research is important for an efficient control of pest polulations.
Specific features of morphology and vernal distribution of two deep-water copepod species
The report contains the results of studying the species,
The foregut portion located in the head of
Gagarin V.G., Nguen Vu Thanh
Illustrated descriptions of three new free-living nematode species of the family Axonolaimidae
Makarova O.L., Makarov K.V.
On Dolgii Island (the southern tundra subzone), eight species of Heteroptera, including one adventitious species
Probable variants of differentiation of some dabbling duck species in the central Lena River basin are presented on the basis of recording the duck individuals with gained reddish color of plumage arrived after their wintering to Central Yakutian plains. The Lena River basin within the taiga zone is suggested to be a breeding area for mallards, green-winged teals, and Eurasian wigeons wintering in central, northern China, and on northern Honshu Island, as well as for mallards and green-winged teals from both Indo-Malayan region and southern Japan. Northern pintails breeding in the Central Yakutian Lowland and adjacent plateaus appear to winter in central and northern China and northern Honshu Island. Migrating northern pintails hibernate in southern Asia.