R. Kashkarov, A. Ten, Yuliya Mitropolskaya, V. Soldatov
{"title":"受农业景观和气候变化的影响,乌兹别克斯坦大鲵现代活动范围的变化","authors":"R. Kashkarov, A. Ten, Yuliya Mitropolskaya, V. Soldatov","doi":"10.24057/2071-9388-2022-091","DOIUrl":null,"url":null,"abstract":"Previously, there was no special study of the Great Bustard (Otis tarda) in Uzbekistan. The first Bustard survey was conducted within the Winter Bustards Census Programme of the Eurasian Bustard Alliance in 2019. The discovery of a Great Bustards aggregation of 96 individuals in Jizzakh region showed that the wintering grounds are more stable than was expected before and that there is no information about the wintering grounds of this species in the country. The aim of this work was to find other wintering grounds, estimate the number of wintering Great Bustards and assess threats. The identification of potential wintering grounds was carried out using satellite images in Q-GIS 3.0 based on published records of the Great Bustard in the winter season. The field survey of the Great Bustard was carried out using two methods. The first one was based on car transects, which is suitable for natural habitats. The second method that we used on open rain-fed fields, was point count from higher locations. Both methods give the actual number of birds, and could not be used for extrapolation as this species’ distribution is fragmented. In 2020-2021 we covered a considerable part of the foothill plains of the central part of Uzbekistan. As a result, two wintering grounds were identified in which about 500 Great Bustards were concentrated. The surveys also made it possible to identify the main threats, which are poaching and collision with power lines. The results highlighted wintering grounds which required conservation.","PeriodicalId":37517,"journal":{"name":"Geography, Environment, Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Changes In The Modern Range Of The Great Bustard Otis Tarda In Uzbekistan Under The Influence Of Agricultural Transformation Of Landscapes And Climate\",\"authors\":\"R. Kashkarov, A. Ten, Yuliya Mitropolskaya, V. Soldatov\",\"doi\":\"10.24057/2071-9388-2022-091\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Previously, there was no special study of the Great Bustard (Otis tarda) in Uzbekistan. The first Bustard survey was conducted within the Winter Bustards Census Programme of the Eurasian Bustard Alliance in 2019. The discovery of a Great Bustards aggregation of 96 individuals in Jizzakh region showed that the wintering grounds are more stable than was expected before and that there is no information about the wintering grounds of this species in the country. The aim of this work was to find other wintering grounds, estimate the number of wintering Great Bustards and assess threats. The identification of potential wintering grounds was carried out using satellite images in Q-GIS 3.0 based on published records of the Great Bustard in the winter season. The field survey of the Great Bustard was carried out using two methods. The first one was based on car transects, which is suitable for natural habitats. The second method that we used on open rain-fed fields, was point count from higher locations. Both methods give the actual number of birds, and could not be used for extrapolation as this species’ distribution is fragmented. In 2020-2021 we covered a considerable part of the foothill plains of the central part of Uzbekistan. As a result, two wintering grounds were identified in which about 500 Great Bustards were concentrated. The surveys also made it possible to identify the main threats, which are poaching and collision with power lines. 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Changes In The Modern Range Of The Great Bustard Otis Tarda In Uzbekistan Under The Influence Of Agricultural Transformation Of Landscapes And Climate
Previously, there was no special study of the Great Bustard (Otis tarda) in Uzbekistan. The first Bustard survey was conducted within the Winter Bustards Census Programme of the Eurasian Bustard Alliance in 2019. The discovery of a Great Bustards aggregation of 96 individuals in Jizzakh region showed that the wintering grounds are more stable than was expected before and that there is no information about the wintering grounds of this species in the country. The aim of this work was to find other wintering grounds, estimate the number of wintering Great Bustards and assess threats. The identification of potential wintering grounds was carried out using satellite images in Q-GIS 3.0 based on published records of the Great Bustard in the winter season. The field survey of the Great Bustard was carried out using two methods. The first one was based on car transects, which is suitable for natural habitats. The second method that we used on open rain-fed fields, was point count from higher locations. Both methods give the actual number of birds, and could not be used for extrapolation as this species’ distribution is fragmented. In 2020-2021 we covered a considerable part of the foothill plains of the central part of Uzbekistan. As a result, two wintering grounds were identified in which about 500 Great Bustards were concentrated. The surveys also made it possible to identify the main threats, which are poaching and collision with power lines. The results highlighted wintering grounds which required conservation.
期刊介绍:
Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is founded by the Faculty of Geography of Lomonosov Moscow State University, The Russian Geographical Society and by the Institute of Geography of RAS. It is the official journal of Russian Geographical Society, and a fully open access journal. Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” publishes original, innovative, interdisciplinary and timely research letter articles and concise reviews on studies of the Earth and its environment scientific field. This goal covers a broad spectrum of scientific research areas (physical-, social-, economic-, cultural geography, environmental sciences and sustainable development) and also considers contemporary and widely used research methods, such as geoinformatics, cartography, remote sensing (including from space), geophysics, geochemistry, etc. “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is the only original English-language journal in the field of geography and environmental sciences published in Russia. It is supposed to be an outlet from the Russian-speaking countries to Europe and an inlet from Europe to the Russian-speaking countries regarding environmental and Earth sciences, geography and sustainability. The main sections of the journal are the theory of geography and ecology, the theory of sustainable development, use of natural resources, natural resources assessment, global and regional changes of environment and climate, social-economical geography, ecological regional planning, sustainable regional development, applied aspects of geography and ecology, geoinformatics and ecological cartography, ecological problems of oil and gas sector, nature conservations, health and environment, and education for sustainable development. Articles are freely available to both subscribers and the wider public with permitted reuse.