<abstract xmlns="http://www.w3.org/1999/xhtml">The Ferruginous Duck <italic>Aythya nyroca </italic>and Pochard <italic>A. ferina </italic>are both regular breeders in Bulgaria. In the 19th and early 20th centuries, the Ferruginous Duck was a widely distributed and abundant breeding species in Bulgaria, while Pochard was first confirmed to breed in the country only in the 1950s. Breeding habitat characteristics of Ferruginous Duck and Pochard were assessed in 2002 during a national census of the former species in 30 and 23 wetlands, respectively, where the species were present. Preferred habitat characteristics were determined based on vegetation cover, water depth, and the presence of mosaic vegetation, bank side vegetation, floating vegetation, shallow or steep banks, shallow mudflats, shallow vegetated areas and woodland along the banks. In 2002, the Ferruginous Duck population in Bulgaria was restricted more to artificial wetlands, like fishponds and micro-reservoirs, while Pochard preferred more natural wetlands, predominantly natural marshes. The altitude of wetlands with Ferruginous Ducks varied markedly, with breeding recorded up to 880 m a.s.l., while Pochard bred at lower altitudes, mostly below 300 m a.s.l. Analysis revealed that Ferruginous Ducks preferred well-vegetated, comparatively shallow wetlands with well-structured mosaic vegetation and a diversity of microhabitats, like shallow mudflats and floating vegetation. The Pochard was found to be more of a generalist in wetland selection, significantly correlated with fewer wetland parameters, and showed preference only for larger, open-water bodies. These results could help explain and give some insight into the reasons for the differences in range size, numbers and distribution of the two species and their respective conservation status in Europe and worldwide. The Pochard, whilst close to the limits of the breeding range in Bulgaria, expands its range in Europe, occupying a variety of wetlands and thus having a favourable status. The Ferruginous Duck is more of a habitat specialist, which limits its distribution and makes it more susceptible to habitat changes. These habitat preferences and the deterioration of the wetland habitats in many parts of its range could probably explain the Ferruginous Duck decreasing population and shrinking breeding range, and thus its current unfavourable conservation status.</abstract>

Habitat characteristics assessmen of the wetlands with breeding Ferruginous Duck Aythya nyroca and Pochard A. ferina in Bulgaria / Ocena habitatnih značilnosti mokrišč z gnezdečimi kostanjevkami Aythya nyroca in sivkami A. ferina v Bolgariji

<abstract xmlns="http://www.w3.org/1999/xhtml">The breeding population of Spoonbill <italic>Platalea leucorodia </italic>in Croatia, estimated at 154-275 breeding pairs, is classified as Endangered. The main reason for the unfavourable status is loss of breeding/feeding habitats. The purpose of the study was to detect changes in the habitat types previously assessed as important for Spoonbill’s feeding. The study area was chosen for two reasons: (1) the alluvial wetlands of the central part of the Sava River hold the biggest colony of Spoonbills in Croatia, and (2) availability of data on feeding ecology of Spoonbills along alluvial wetlands of the Sava River. We used the MODIS (Moderate Resolution Imaging Spectroradiometer) Enhanced Vegetation Index (EVI) as the main indicator for the changes in habitat structure along critical habitats for Spoonbills. The analysis identified areas with significant changes in EVI for habitat types important for feeding of the Spoonbills during the 2000-2008 period. Pastures, especially those with high wetness potential, changed in significant percentage despite conservation efforts in this habitat type. Changes in EVI were detected on ca. 9% of the pastures. For that reason we urge for better monitoring of the Spoonbill’s feeding habitats “in situ” and more specified characterisation of the reasons for the detected changes.</abstract>

Group for Terrestrial Biodiversity, Division of Biology, Faculty of Science, University of Zagreb, Marulićev trg 20/II, HR–10000 Zagreb, Croatia

Ecology Association “Earth”, Slavonija I/6, HR–35 000 Slavonski Brod, Croatia

Division of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, HR–10000 Zagreb, Croatia

Group for Terrestrial Biodiversity, Division of Biology, Faculty of Science, University of Zagreb, Marulićev trg 20/II, HR-10000 Zagreb, Croatia

Detecting habitat changes using MODIS EVI images: a case study of Spoonbill Platalea leucorodia in Croatia /  Ugotavljanje sprememb v habitatih z uporabo posnetkov MODIS EVI: vzorčna študija žličarke Platalea leucorodia na Hrvaškem

<abstract xmlns="http://www.w3.org/1999/xhtml">The present article is an upgrade and update of national checklists published by the Slovenian Rarities Committee in the past. A species is considered rare if fewer than 10 records are known after 1st January 1950. The number of records for these species is given in the list. Additionally, species designated as rare in the last edition of the list and extinct breeders were also considered. All records after 1st January 2001, included in the list, were confirmed by the current Slovenian Rarities Committee. Data collection for the period between 1st January 1800 and 31st December 1949 was centred on evaluating written sources, which were the basis for inclusion of a species into previous editions of the list. The data classification and taxonomy follow the recommendations of the British Ornithologists' Union. The list includes species observed at least once between 1st January 1800 and 31st December 2011. The list of birds recorded in Slovenia contains 380 species, of which 365 are in Category A, seven in Category B and eight in Category C. Category D contains six and Category E 29 species. These species are not part of the list. In comparison with the last version of the list published in 2001, 10 species recorded in Slovenia for the first time during this period were added. Two species were added because of taxonomic changes and five due to changes in species categories. Seven species were removed from the list owing to inaccurate information in historic written sources or misidentification.</abstract>

Židovska ulica 1, SI−1000 Ljubljana, Slovenija

Langusova 10, SI−1000 Ljubljana, Slovenija

Seznam ugotovljenih ptic Slovenije s pregledom redkih vrst /  The list of birds of Slovenia with an overview of rare species

AHEAD OF PRINT

Volume 42 (2021): Issue 190-191 (December 2021)

Volume 42 (2021): Issue 188-189 (December 2021)

Volume 41 (2020): Issue 186-187 (December 2020)

Volume 41 (2020): Issue 184-185 (November 2020)

Volume 40 (2019): Issue 182-183 (December 2019)

Volume 40 (2019): Issue 180-181 (November 2019)

Volume 39 (2018): Issue 178-179 (December 2018)

Volume 39 (2018): Issue 176-177 (November 2018)

Volume 38 (2017): Issue 174-175 (December 2017)

Volume 38 (2017): Issue 172-173 (November 2017)

Volume 37 (2016): Issue 170-171 (December 2016)

Volume 37 (2016): Issue 168-169 (November 2016)

Volume 36 (2015): Issue 166-167 (December 2015)

Volume 36 (2015): Issue 164-165 (November 2015)

Volume 35 (2014): Issue 162-163 (December 2014)

Volume 35 (2014): Issue 160-161 (November 2014)

Volume 34 (2013): Issue 158-159 (December 2013)

Volume 34 (2013): Issue 156-157 (June 2013)

Volume 33 (2012): Issue 154-155 (December 2012)

Volume 33 (2012): Issue 152-153 (March 2012)

Volume 32 (2012): Issue 150-151 (October 2012)

Volume 32 (2011): Issue 148-149 (June 2011)

Volume 31 (2010): Issue 147 (January 2010)

Volume 31 (2010): Issue 145-146 (September 2010)

Volume 31 (2010): Issue 144 (March 2010)

Volume 30 (2009): Issue 141-143 (January 2009)

Volume 30 (2009): Issue 140 (March 2009)

Acrocephalus

 Original work on all fields of ornithology, without any geographical limitation, is published in Acrocephalus. However, articles covering the south-eastern European and eastern Mediterranean regions are particularly encouraged. Review articles, original articles, points-of-view, specialist and scientific comments (Editorial, Forum), short communications, short notes ('From the ornithological notebook'), diploma abstracts and book reviews (New books) are considered for publication. Contributions can be published in English or Slovene. Why subscribe and read   excellent source of ornithological information from the region (SE Europe)  high quality, peer reviewed papers  appearing quarterly with up-to-date information   Why submit   fair, transparent and quick peer review  promotion of published articles through various abstracting services  wide exchange of the journal with the ornithological community worldwide  regional readership and idea exchange (SE Europe)  language correction for non-English speaking authors  various article formats are available suitable for different levels of scientific research (review articles, original articles, points-of-view, specialist and scientific comments, short communications, short notes, diploma abstracts and book reviews)   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Acrocephalus

Volume 32 (2012): Issue 150-151 (October 2012)

Habitat characteristics assessmen of the wetlands with breeding Ferruginous Duck Aythya nyroca and Pochard A. ferina in Bulgaria / Ocena habitatnih značilnosti mokrišč z gnezdečimi kostanjevkami Aythya nyroca in sivkami A. ferina v Bolgariji

Detecting habitat changes using MODIS EVI images: a case study of Spoonbill Platalea leucorodia in Croatia / Ugotavljanje sprememb v habitatih z uporabo posnetkov MODIS EVI: vzorčna študija žličarke Platalea leucorodia na Hrvaškem

Seznam ugotovljenih ptic Slovenije s pregledom redkih vrst / The list of birds of Slovenia with an overview of rare species

Suche

Alle Bände und Hefte dieser Zeitschrift