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Сборник включает 411 тезисов пленарных, симпозиальных и постерных сообщений, а также материалов круглых столов, представленных на XV Международную орнитологическую конференцию Северной Евразии (Минск, 2020). Рассматриваются общие и частные вопросы орнитологии, разрабатываемые учёными из 23 стран Северной Евразии. Представлены результаты исследований по динамике численности и демографии популяций, изменению ареалов видов, региональным фаунам птиц. Обсуждаются вопросы систематики, морфологии, физиологии, оологии, поведения, палеорнитологии, биоакустики, синантропизации птиц и антропогенного воздействия на них, актуальные проблемы охраны видов и популяций, мониторинга сообществ птиц на ООПТ, а также перспективы использования Атласа птиц европейской части России. Освещены проблемы и достижения в области ресурсной, медицинской и любительской орнитологии. Предназначено для широкого круга специалистов и любителей, занимающихся изучением и охраной птиц и их местообитаний.

Marine litter, including plastic and microplastic, is a global concern affecting all the oceans and seas of the world. It poses environmental, economic, health and aesthetic problems that are rooted in poor solid waste management practices, lack of infrastructure, indiscriminate human activities and behaviours and an inadequate understanding on the part of the public of the potential consequences of their actions. Development of the Caspian Marine Litter Action Plan is embodied in the Moscow Protocol against pollution from land-based sources. 

The preparation of the draft Caspian Regional Marine Litter Action Plan (CRMLAP) was undertaken by the national experts from the Caspian Sea littoral states and an international expert. For that purpose, five National Experts were contracted to provide their national inputs and contributions for the development of the Caspian Marine Litter Action Plan where the International Expert fully facilitates the development of the Caspian Marine Litter Action Plan.

Toxicity tests are commonly used as a tool to determine the standards of water quality for chemicals and to discover appropriate organisms as bioindicators in toxicological studies, and also could be used as an essential tool for evaluation of the pollutant effects in aquatic ecosystems. The aim of the present study was to evaluate the sensitivity of two Caspian fish species, Caspian trout as an endangered species and Caspian Kutum using the static acute toxicity in response to nonylphenol, which is widely discharged into the Caspian Sea environment.

In addition, Caspian trout was approximately 6 times more sensitive than Caspian Kutum. Nonylphenol was reflected to be "highly toxic" to Caspian trout and "moderately toxic" to Caspian Kutum. The results could be considered in preparing plans for conservation and restocking management of Caspian Kutum and the endangered Caspian trout. 

This report analyzes oil and natural gas in the Caspian region, focusing primarily on the littoral (coastal) countries of the Caspian Sea (Russia, Azerbaijan, Kazakhstan, Turkmenistan and Iran). A discussion of Uzbekistan is also included. While not a Caspian coastal state, a considerable amount of Uzbekistan's territory, along with its energy resources, lies in the geological Caspian basins.

The combination of foreign investment and rising energy prices allowed the coastal countries to shift from diverting oil extraction for local use to supplying both regional and world oil markets. The ability of countries to export greater volumes of Caspian crude oil and natural gas will depend on how quickly domestic energy demand rises in those countries, how quickly they can build additional export infrastructure to global markets, and whether expensive projects to develop Caspian resources can attract sufficient investment.