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Unique marshland area in the Danube floodplain - Special Nature Re­serve Gornje Podunavlje is considered to be one of the last aquatic flora and fauna refuges in the region. The revitalization projects in SNP Gornje Podunavlje started in 2011. They were conducted in order to protect biodiversity and to provide the natural ecosystem. The aim of this study was to investigate and compare the present diversity and distribution of the charophytes in five ponds of SNR Gornje Podunavlje, depending on phases of the revitalization process within the ponds. The researched area includes the following ponds: Semenjača, Šarkanj, Široki rit, Sakajtaš and Ribolov. The Široki rit pond was under the process of revitalization during the field surveys, Semenjača and Šarkanj have already been revitalized, and Ribolov and Sakajtaš were not exposed to the revitalization processes at all. The field surveys were conducted monthly, from May to September 2016. Water quality parameters were measured in situ and in laboratory. Ponds differed considerably when it comes to water chemistry; Semenjača and Šarkanj were associated with highest nutrient concentrations, while Široki rit was characterized by highest conductivity and water hardness. The highest diversity was found in Široki rit pond, which was still in process of revitalization when the field survey was conducted. Charophytes were not detected within previously revitalized ponds (Semenjača and Šarkanj). Eight species of charophytes were detected: Chara contraria, Chara globularis, Chara tenuispina, Chara vulgaris, Nitella confervacea, Nitella gracilis, Nitella syncarpa and Tolypella prolifera. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. OI 176020]

Distribution pattern, nest-tree characteristics and reproductive features of Black Stork’s population were evaluated in the floodplains of Gornje Podunavlje in Northwestern Serbia over five consecutive years. In total, 44 different nests were discovered and monitored. Nests were mostly placed on wide-diameter European Oaks and White Poplars between 5.5 and 18 m above ground level. Annually, the number of occupied nests varied between 26 and 16 with the declining trend over study years. The mean nesting density was 9.8 ± 2 occupied nests per 100 km2. Through study area, occupied nests were uniformly distributed and very isolated concerning the conspecific pairs. Predominantly, Black Stork preferred to nest on the lateral branches of the autochthonous mature trees with straight trunks and extensive crowns. These results suggest that the existence of old native forest stands represent crucial microhabitat criteria in the choice of the particular nesting site. In almost half of successful nesting cases, the most frequent number of fledglings was three. Overall productivity was relatively low with some variations between years implying poor nesting success.

Distribution pattern, nest-tree characteristics and reproductive features of Black Stork's population were evaluated in the floodplains of Gornje Podunavlje in Northwestern Serbia over five consecutive years. In total, 44 diff erent nests were discovered and monitored. Nests were mostly placed on wide-diameter European Oaks and White Poplars between 5.5 and 18 m above ground level. Annually, the number of occupied nests varied between 26 and 16 with the declining trend over study years. The mean nesting density was 9.8 ± 2 occupied nests per 100 km². Through study area, occupied nests were uniformly distributed and very isolated concerning the conspecifi c pairs. Predominantly, Black Stork preferred to nest on the lateral branches of the autochthonous mature trees with straight trunks and extensive crowns. These results suggest that the existence of old native forest stands represent crucial microhabitat criteria in the choice of the particular nesting site. In almost half of successful nesting cases, the most frequent number of fledglings was three. Overall productivity was relatively low with some variations between years implying poor nesting success. [ABSTRACT FROM AUTHOR]

During the history, the Danube valley was often devastated the northwest part of Bačka. However, the Danube river created also one of the most rich full wetland complexes in Serbia, Special Nature Reserve 'Gornje Pondunavlje' (Upper Danube). Hunting-ground 'Apatinski rit' is located within borders of SNR 'Gornje Podunavlje'. The people from this region constructed river embankments and other fortification objects to protect themselves from the floods, but still there are spacious areas that are not protected. In those areas, many floral and animal species (including game) face floods every year. High water level of the Danube River is the most dominant factor of change of habitat conditions in hunting ground 'Apatinski rit'. About 60% of the territory of 'Apatinski rit' are in the zone of floods. During the extreme high water level, game animals suffer serious losses. The purpose of this paper is to present possible application of geographic information system (GIS) in flood prediction in hunting-ground 'Apatinski rit' in order to reduce negative flood impacts. GIS technologies are used in many aspects of flood identification, prediction, and hazard mitigation. In this paper a 3D model is introduced to realize the flooded areas. The flooded areas are estimated based on the Danube water levels and topography of the surrounding terrain. The estimated flooded areas based on several water levels are shown in the paper. During the flood some parts of hunting ground are under water, and some higher courts remain dry. By using 3D model, all the isolated 'islands' with trapped game can be located during the floods, which is crucial for rescue intervention priorities and decision making during the flood.

The development of tourism in protected areas is a particular challenge for the tourism business and the activity of nature conservation. The leading criteria for sustainable tourism in protected areas emphasize the importance of the adoption of certain principles of care, long-term planning and management that integrates nature protection and tourism. In this respect, the paper analyzes their importance in the case of Special Nature Reserve »Gornje Podunavlje« in Vojvodina. After acquiring the status of a special nature reserve, talk about the importance of this area to the tourism of Sombor and Apatin, where it is located, has increased. This trend follows the design of educational and tourist tracks, starting and running events as well as starting tourism businesses in rural households. There could be multiple benefits of this for the local communities.

The development of tourism in protected areas is a particular challenge for the tourism business and the activity of nature conservation. The leading criteria for sustainable tourism in protected areas emphasize the importance of the adoption of certain principles of care, long-term planning and management that integrates nature protection and tourism. In this respect, the paper analyzes their importance in the case of Special Nature Reserve »Gornje Podunavlje« in Vojvodina. After acquiring the status of a special nature reserve, talk about the importance of this area to the tourism of Sombor and Apatin, where it is located, has increased. This trend follows the design of educational and tourist tracks, starting and running events as well as starting tourism businesses in rural households. There could be multiple benefits of this for the local communities. [ABSTRACT FROM AUTHOR]

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