scholarly journals The first comprehensive estimate of the winter population of the White-tailed Eagle Haliaeetus albicilla along the Danube/ Prva celostna ocena zimske populacije belorepca Haliaeetus albicilla vzdolž Donave

Acrocephalus ◽  
2014 ◽  
Vol 35 (162-163) ◽  
pp. 115-123
Author(s):  
Remo Probst ◽  
Larisa Bogdea ◽  
Dan S. Bandacu ◽  
Mirko Bohuš ◽  
Svilen Cheshmedzhiev ◽  
...  
Keyword(s):  
National Park ◽  
Action Plan ◽  
Biosphere Reserve ◽  
Danube River ◽  
Haliaeetus Albicilla ◽  
Transect Counts ◽  
Nature Park ◽  
Lower Variation ◽  
Danube Delta Biosphere Reserve ◽  
Winter Population

Abstract In January 2014, the first ever comprehensive winter census of the Whitetailed Eagle Haliaeetus albicilla along the Danube River was conducted, using mostly point and transect counts. Altogether, 550-700 eagles were counted. The upper range of the estimate may in fact be more realistic because 615 km of the Danube were not surveyed. Birds were observed in every country along the Danube. Hotspots of occurrences were (1) the Central Danube floodplains - the area encompassing the lower Hungarian section (Danube- Drava National Park), Kopački rit Nature Park (Croatia), and the Gornje Podunavlje Special Nature Reserve (Serbia); and (2) the Danube Delta Biosphere Reserve. According to the Action Plan for the conservation of the White-tailed Eagle along the Danube, future winter counts should be made regularly, and lower variation in the resulting eagle numbers achieved by a higher degree of synchronization between individual countries. This study reinforces the importance of protected areas along the Danube as a backbone for the conservation of White-tailed Eagles and biodiversity.

scholarly journals Blue duiker Philantomba monticola densities in the Tsitsikamma National Park and probable factors limiting these populations

Koedoe ◽  
1991 ◽  
Vol 34 (2) ◽  
Author(s):  
N. Hanekom ◽  
V. Wilson
Keyword(s):  
National Parks ◽  
National Park ◽  
Nature Reserve ◽  
Faecal Pellet ◽  
Density Estimates ◽  
Pellet Counts ◽  
Transect Counts ◽  
Fallen Leaves ◽  
Blue Duiker ◽  
Winter Population

Numbers of blue duikers recorded on 157 and 28 variable width transect counts, done over a two year period in the Tsitsikamma Coastal National Park (TCNP) and Tsitsikamma Forest National Park (TFNP) respectively, did not differ significantly {P > 0,10) with seasons (summer v. winter). Population density estimates from transects were similar to those from game drives (0,18 v. 0,19 duikers/ha (TCNP) and 0,13 v. 0,17 duikers/ha (TFNP); P >0,10), higher than from faecal pellet counts (P < 0,10) and at least three times lower than estimates from the Kenneth Stainbank Nature Reserve and Umdoni Park in Natal. Factors contributing to the low population densities in the Tsitsikamma national parks were investigated. Twentyseven and seven percent of leopard (25) and caracal (12) scats respectively analyzed contained blue duiker remains, but predator numbers appear to be low. Forest characteristics were investigated, and results from this and other studies suggest that undergrowth cover does not markedly influence blue duiker densities in the southern Cape forests. Field and stomach analysis indicate that blue duikers feed primarily on freshly fallen leaves and fruit, and are selective foragers. In the Tsitsikamma national parks (TNPs) the frequency of occurrence of trees known to be palatable to duikers are low, while less than 45 percent of the dominant tree species fruit fully annually. This apparent scarcity of food, the low numbers of antelope species and individuals in these forests and results from duiker research in Zaire, suggest that habitat rather than predation is limiting duiker numbers in the Tsitsikamma national parks.

scholarly journals The role of protected areas in destination choice in the European Alps

2014 ◽  
Vol 58 (1) ◽  
Author(s):  
Ulrike Pröbstl-Haider ◽  
Wolfgang Haider
Keyword(s):  
Protected Areas ◽  
National Park ◽  
Tourism Development ◽  
Biosphere Reserve ◽  
Destination Choice ◽  
German Population ◽  
European Alps ◽  
Nature Park ◽  
Nature Experience

AbstractThis paper investigates the role of protected areas (PA) for destination choice in the European Alps. It is based on the analysis of the most relevant types of PA (national park, nature park, biosphere reserve), constituting part of the supply of tourism development, and a representative survey of the German population interested in holidays in the alpine area, representing the demand. Our analysis of the legal framework showed that all three types of PA facilitate tourism development, albeit in different ways. The survey included a generic choice experiment of alpine destinations with 17 attributes. Its location in or close to a PA was included as one variable. This destination demand study in an area of origin provided a different perspective on the preference for PA compared to other studies, and revealed significant differences between respondents with and without previous experiences in the Alps. The alpine experienced tourist is more likely to distinguish between the various types of PA such as national park and nature park. For the inexperienced alpine tourist, representing latent demand, the branding effect of PA is rather limited. For nearly all tourists, experienced and inexperienced, and across all segments, offers that include a nature experience are important. Nature experience, which is offered by all types of PA, is of high relevance within the destination choice and should therefore be used more intensely in destination marketing based on PA. Overall, this study shows that the role of PA for destination choice is not as strong as is reported by most of the published literature, as most of these studies are based on surveys in the destination and use single item scaling questions, which overvalue the role of PA.

scholarly journals Human impact on the microbiological water quality of the rivers

2013 ◽  
Vol 62 (11) ◽  
pp. 1635-1640 ◽  
Author(s):  
Emőke Páll ◽  
Mihaela Niculae ◽  
Timea Kiss ◽  
Carmen Dana Şandru ◽  
Marina Spînu
Keyword(s):  
Water Quality ◽  
Human Impact ◽  
Biosphere Reserve ◽  
Danube River ◽  
Danube Delta ◽  
Microbiological Contamination ◽  
Microbiological Water Quality ◽  
Water Quality Problem ◽  
Danube Delta Biosphere Reserve

Microbiological contamination is an important water-quality problem worldwide. Human impact on this category of contamination is significant and several human-related activities, and also the population explosion, have affected and are still affecting dramatically the aquatic environment. Extensive industrialization and agriculture have led to increased pollution and hydromorphological changes in many river basins. The Danube river is one of the most affected by these changes where human involvement is undeniable, and subsequently, the Danube Delta Biosphere Reserve became one of the most vulnerable ecosystems. This review is an attempt to analyse the microbiological contamination and to identify the major role human activities play in altering the water quality of the rivers.

Danube River Basin: Progress with the Environmental Programme

1999 ◽  
Vol 40 (10) ◽  
pp. 1-8 ◽  
Author(s):  
T. Botterweg ◽  
D. W. Rodda
Keyword(s):  
River Basin ◽  
Action Plan ◽  
Waste Water Treatment ◽  
Warning System ◽  
Danube River ◽  
The Black Sea ◽  
Research Activity ◽  
Global Environment Facility ◽  
Major Activity ◽  
Wide Range

An Internationally funded Programme, involving the European Commission, the Global Environment Facility managed by UN Development Programme, the World Bank and the European Bank for Reconstruction and Development, is addressing river basin problems in a unique situation. The solution of these should lead to the prevention of pollution and better water quality, protected ecosystems, sustainable water resources and more efficient sewerage and waste water treatment facilities for the 90 million population living in the region and the reduction of pollution impact on the Black Sea into which the Danube River flows. The paper introduces current Programme activities, the challenges being met and progress. Work is described for implementing a monitoring strategy, an accident emergency warning system and implementation of the 1994 Strategic Action Plan. The applied research activity is explained. The Programme is a major activity with many elements addressing a wide range of environmental problems in the catchment of a major international waterway.

Danube Delta Biosphere Reserve—Long-Term Assessment of Water Quality

2019 ◽  
pp. 21-43
Author(s):  
Cristina Despina ◽  
Liliana Teodorof ◽  
Adrian Burada ◽  
Daniela Seceleanu-Odor ◽  
Iuliana-Mihaela Tudor ◽  
...  
Keyword(s):  
Water Quality ◽  
Biosphere Reserve ◽  
Danube Delta ◽  
Danube Delta Biosphere Reserve

scholarly journals Heading forward to the "Mura-Drava-Danube transboundary biosphere reserve"

2014 ◽  
pp. 267-279
Author(s):  
Milos Petrovic
Keyword(s):  
European Union ◽  
Spatial Organization ◽  
Biosphere Reserve ◽  
Short Review ◽  
Danube River ◽  
Biosphere Reserves ◽  
Multilateral Cooperation ◽  
Legal Documents ◽  
Political Economic ◽  
Danube River Basin

At ministry assembly in Budapest in March 2011, republics such as Austria, Slovenia, Hungary, Croatia and Serbia, were signatories of common Declaration on the preparation of the establishment of the ?Mura - Drava - Danube Transboundary Biosphere Reserve?(MDD-TBR). Even though this document does not have obligatory character for states that signed it, this declaration represents the obvious course these states will follow in order to improve their cooperation. Beside political, economic, cultural and other well developed forms of cooperation, a multilateral cooperation emerges within the areas of conservation, protection and improvement of flora and fauna of the Danube and rivers Drava and Mura that belong to The Danube River Basin. In this article the author provided a short review of basic international legal documents that refer to Biosphere Reserves regarding specifically the overall Danube Strategy by European Union and belonging Action Plane to Danube Strategy. The author analyzed the paramount clauses of Declaration MDD - TBR, with intention to reveal this little known document to scientific and professional public. In that sense, the principles for selecting the actual biosphere reserve have become a priority as well as the elemental objectives a biosphere reserve should accomplish and its spatial organization.

scholarly journals Algae of biological soil crusts from sand dunes of the Danube Delta biosphere reserve (Odesa Region, Ukraine)

Algologia ◽  
2021 ◽  
Vol 31 (1) ◽  
pp. 25-62
Author(s):  
T.I. Mikhailyuk ◽  
◽  
O.M. Vinogradova ◽  
K. Glaser ◽  
N. Rybalka ◽  
...  
Keyword(s):  
Species Composition ◽  
Phylogenetic Analyses ◽  
Sand Dunes ◽  
Biosphere Reserve ◽  
Biological Soil Crusts ◽  
Danube Delta ◽  
Climate Type ◽  
Soil Crusts ◽  
Comparison Of The Results ◽  
Danube Delta Biosphere Reserve

The species composition of algae from biological soil crusts (biocrusts) on the surface of sand dunes (Black Sea coast, Primorske, Izmail District, Odesa Region, Ukraine) was investigated. Samples were collected from three coastal localities: Katranivska Spit, Zhebryianska Bay and Zhebryianska Ridge. The latter two localities are in the territory of the Danube Delta Biosphere Reserve. The samples were investigated by direct microscopy, followed by a culture approach. 60 species from Chlorophyta (32), Cyanobacteria (16), Streptophyta (7) and Ochrophyta (5) were identified. Representatives of the cyanobacterial genera Microcoleus Desmazières ex Gomont, Coleofasciculus M.Siegesmund, J.R.Johansen & T.Friedl, Nostoc Vaucher ex Bornet & Flahault, Hassallia Berkeley ex Bornet & Flahault, and streptophytes from the genus Klebsormidium P.C.Silva, Mattox & W.H.Blackwell dominated in the studied biocrusts. Phylogenetic analyses based on 16S/18S rRNA as well as 16S-23S ITS/ITS-1,2 regions were undertaken for some strains of cyanobacteria and eukaryotic algae. As a result, species identification and their position in respective phylogeny was refined, as well as aiding the discovery of some interesting and rare species. New genera and species were described (Streptosarcina arenaria Mikhailyuk & Lukešová and Tetradesmus arenicola Mikhailyuk & P.Tsarenko); with two genera (Nodosilinea R.B.Perkerson & D.A.Casamatta and Pleurastrosarcina H.J.Sluiman & P.C.J.Blommers) and four species reported for the first time for the flora of Ukraine (Nodosilinea epilithica Perkerson & Casamatta, Pseudomuriella aurantiaca (W.Vischer) N.Hanagata, Pleurochloris meiringensis Vischer, Pleurastrosarcina terriformae Darienko, W.J.Kang, Orzechowski & Pröschold). Comparison of the results from this study with similar investigations at Cape Kazantip (Sea of Azov, Ukraine) and at two islands of the Baltic Sea (Rügen, Usedom, Germany) revealed that sand composition and texture, as well as climate type of the respective region, are the main factors determining species composition of algae and cyanobacteria in biocrusts of maritime dunes.

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