[Some problems of studying spatial heterogeneity of animal communities].

The efficiency of different techniques of data collection and processing was considered by the example of bird communities. Accounted variance of the coefficients of bird complex similarity was used as the measure. Annual censuses in different sites proved more expedient than a long-term census in a single key site to study medium- and small-scale spatial heterogeneity of bird communities.

A novel encoded particle technology that enables simultaneous interrogation of multiple cell types.

The authors have developed a cellular analysis platform, based on encoded microcarriers, that enables the multiplexed analysis of a diverse range of cellular assays. At the core of this technology are classes of microcarriers that have unique, identifiable codes that are deciphered using CCD-based imaging and subsequent image analysis. The platform is compatible with a wide variety of cellular imaging-based assays, including calcium flux, reporter gene activation, cytotoxicity, and proliferation.

[Fleas (Siphonaptera) infesting birds of West Siberian plain].

The four species of fleas associated with birds in West Siberian Plain have been recorded. Ceratophyllus styx is a specific parasite of Riparia riparia. Ceratophyllus garei, C.

[Classification of the avian summer population of the Western Siberian plain].

The proposed classification system reflects the difference between the three population systems: unbuilt land, built-up land, and aquatic-semiaquatic communities. Two superorder groups--north and median--further divided into types were recognized in each of the systems. Most types are divided into subtypes, classes, and subclasses (and sometimes genera of the population).