Пространственное распределение птиц Алданского нагорья.

The results of bird route censuses, conducted on the territory of the Aldan Highland in the first half of summer and generally covering the period from 2000 to 2019, were analyzed. The total length of the routes was about 2815 km. A total of 116 initial variants of the bird population were used. Based on the results of multivariate factor analysis for 160 species registered in these censuses, a hierarchical classification of their preference for habitats was drawn up. The classification showed that 45 % of birds prefer forests, woodlands and burned areas, 26.2 % - water bodies and their banks, 13.8 % - bogs and meadows, 9.4 % - villages and cities, 5.6 % - mountain tundra. A comparative analysis with a similar classification for the Altai Highland has been performed. The main differences in the territorial distribution of bird species in the Aldan Highland and Altai lie in a smaller number of identified types of preferences in our region. Due to the homogeneity of forest biotopes and the absence of the steppe, forest-steppe, subnival, and nival zones in the Aldan Highland, the corresponding landscapes are not represented here, which determines the absence of the steppe, forest-meadow-steppe, meadow-bog, and subnival types. Similarly to Altai, the forest, tundra and synanthropic types of preference are distinguished in the Aldan Highland.

A Study on Distribution of Water Quality Parameters in Potable/Ground Waters of Visakhapatnam Coastal Region with Multivariate Factor Analysis

Chemical components of the earth crust influence the ground water quality. In addition, anthropogenic activities also contribute in deteriorating the quality of ground waters and contaminate the water sources. In present study, 22 water samples were collected from the potable/ground water sources in south coastal region of Visakhapatnam district, India during pre- and post-monsoon seasons and characterized for physico-chemical parameters viz., pH, electrical conductivity (EC), total dissolved solids (TDS), salinity, oxidation reduction potential (ORP), dissolved oxygen (DO), temperature, total hardness (TH), total alkalinity (TA), bicarbonate, carbonate, chloride, fluoride, sulphate, nitrate, phosphate, calcium, magnesium, sodium and potassium. The distribution of parameters was explained by Box-Whisker plot. Further Piper diagrams were drawn to identify the geochemical expressions between the parameters. Multivariate factor analysis was used to assess the degree of factor loadings and to identify the group of parameters influencing the variance of different water quality parameters. The analytical data indicated that majority of water samples in the study area have higher concentration of TDS, TH, TA, Ca2+, Mg2+, Na+, Cl−, HCO3 − and F−.

Attitudes and Perceptions of Employees toward Corporate Social Responsibility in Western Balkan Countries: Importance and Relevance for Sustainable Development

The aim of this paper is to identify the factors that influence employees’ attitudes and perceptions of corporate social responsibilities (CSR), as well as to discuss if there are some significant differences in the application of CSR in the analyzed Western Balkan countries, especially in terms of public and private sector affiliation. This is the first academic survey which examined the employees’ attitudes and perceptions of CSR integrally in five Western Balkan countries. Multivariate factor analysis was applied to data collected from 2410 employees in the analyzed countries. In order to test additionally the results obtained by factor analysis, the Structural Equation Model (SEM) was applied. The results of the research, obtained by multivariate factor analysis and SEM model, show that the largest percentage of employees believe that the CSR concept enables the generating of new values and success of the company, as well as welfare for the whole society. Additionally, companies are increasingly recognizing the strategic importance of CSR for the sustainability of their business, as well as the importance of development of sustainable practices in the environment. Based on the results of the research, the authors found out that there were significant differences in the understanding and acceptance of CSR in the analyzed countries, while there were significantly smaller differences between the private and public sectors. The results of the research may serve as a guide for managers when making decisions about implementing the strategy and future activities regarding CSR.