Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia
Abstract An overview of the long-term (1980–2019) population development of colonial Laridae species in continental part of Slovenia, their nest sites at anthropogenic water bodies, and various conservation measures with special focus on Common Tern Sterna hirundo along the Slovenian/border part of...
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Walter de Gruyter GmbH
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crdegruyter:10.1515/acro-2019-0001 2023-05-15T15:56:15+02:00 Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia Denac, Damijan Božič, Luka 2019 http://dx.doi.org/10.1515/acro-2019-0001 https://content.sciendo.com/view/journals/acro/40/180-181/article-p5.xml https://www.sciendo.com/article/10.1515/acro-2019-0001 en eng Walter de Gruyter GmbH http://creativecommons.org/licenses/by-nc-nd/3.0 CC-BY-NC-ND Acrocephalus volume 40, issue 180-181, page 5-48 ISSN 2199-6067 journal-article 2019 crdegruyter https://doi.org/10.1515/acro-2019-0001 2022-04-14T05:07:49Z Abstract An overview of the long-term (1980–2019) population development of colonial Laridae species in continental part of Slovenia, their nest sites at anthropogenic water bodies, and various conservation measures with special focus on Common Tern Sterna hirundo along the Slovenian/border part of the Drava River is given. Breeding of these species occurs only on the westernmost fringes of the Pannonian plain, on lowland floodplains of the main rivers of the Danube Basin. Altogether, breeding of Common Tern and Black-headed Gull Larus ridibundus was recorded at 11 and 10 sites, respectively. Lake Ptuj is the single site with mixed-species colony residing there in all years of the study period, while at Ormož (two sites) it was established during the early 1990s in the Slovenian territory but moved completely to the Croatian side by the second half of the 2010s. At all other sites, a suitable breeding habitat became available or was provided by management in just a few years, or created only recently. The percentage of Common Tern national population breeding in continental Slovenia was usually well above 50% throughout the 1980s and 1990s (52–136 pairs), while in the last 16 years (77–258 pairs) it ranged between 40.8% and 69.0%. Breeding of Black-headed Gull remains largely limited to continental Slovenia. Overall, continental populations of both species in the last few years have been substantially higher compared to the most of the study period. Long-term trends were estimated as a moderate increase for Common Tern and a strong increase for Black-headed Gull. Since 2006, the Mediterranean Gull L. melanocephalus has been a regular breeder at Lake Ptuj (up to 28 pairs), the only such site in Slovenia. Three general types of conservation measures implemented at different nesting locations are described in detail: (1) measures to create/increase the total surface of breeding habitat – the construction of new breeding structures, such as artificial islands and nesting rafts, (2) measures to maintain and enhance breeding habitat through recurring management activities, and (3) measures aimed to increase chick/nest survival and improve breeding success. Article in Journal/Newspaper Common tern Sterna hirundo Black-headed Gull Larus ridibundus De Gruyter (via Crossref) Acrocephalus 40 180-181 5 48 |
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crdegruyter |
language |
English |
description |
Abstract An overview of the long-term (1980–2019) population development of colonial Laridae species in continental part of Slovenia, their nest sites at anthropogenic water bodies, and various conservation measures with special focus on Common Tern Sterna hirundo along the Slovenian/border part of the Drava River is given. Breeding of these species occurs only on the westernmost fringes of the Pannonian plain, on lowland floodplains of the main rivers of the Danube Basin. Altogether, breeding of Common Tern and Black-headed Gull Larus ridibundus was recorded at 11 and 10 sites, respectively. Lake Ptuj is the single site with mixed-species colony residing there in all years of the study period, while at Ormož (two sites) it was established during the early 1990s in the Slovenian territory but moved completely to the Croatian side by the second half of the 2010s. At all other sites, a suitable breeding habitat became available or was provided by management in just a few years, or created only recently. The percentage of Common Tern national population breeding in continental Slovenia was usually well above 50% throughout the 1980s and 1990s (52–136 pairs), while in the last 16 years (77–258 pairs) it ranged between 40.8% and 69.0%. Breeding of Black-headed Gull remains largely limited to continental Slovenia. Overall, continental populations of both species in the last few years have been substantially higher compared to the most of the study period. Long-term trends were estimated as a moderate increase for Common Tern and a strong increase for Black-headed Gull. Since 2006, the Mediterranean Gull L. melanocephalus has been a regular breeder at Lake Ptuj (up to 28 pairs), the only such site in Slovenia. Three general types of conservation measures implemented at different nesting locations are described in detail: (1) measures to create/increase the total surface of breeding habitat – the construction of new breeding structures, such as artificial islands and nesting rafts, (2) measures to maintain and enhance breeding habitat through recurring management activities, and (3) measures aimed to increase chick/nest survival and improve breeding success. |
format |
Article in Journal/Newspaper |
author |
Denac, Damijan Božič, Luka |
spellingShingle |
Denac, Damijan Božič, Luka Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia |
author_facet |
Denac, Damijan Božič, Luka |
author_sort |
Denac, Damijan |
title |
Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia |
title_short |
Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia |
title_full |
Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia |
title_fullStr |
Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia |
title_full_unstemmed |
Breeding population dynamics of Common Tern Sterna hirundo and associated gull species with overview of conservation management in continental Slovenia |
title_sort |
breeding population dynamics of common tern sterna hirundo and associated gull species with overview of conservation management in continental slovenia |
publisher |
Walter de Gruyter GmbH |
publishDate |
2019 |
url |
http://dx.doi.org/10.1515/acro-2019-0001 https://content.sciendo.com/view/journals/acro/40/180-181/article-p5.xml https://www.sciendo.com/article/10.1515/acro-2019-0001 |
genre |
Common tern Sterna hirundo Black-headed Gull Larus ridibundus |
genre_facet |
Common tern Sterna hirundo Black-headed Gull Larus ridibundus |
op_source |
Acrocephalus volume 40, issue 180-181, page 5-48 ISSN 2199-6067 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/3.0 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1515/acro-2019-0001 |
container_title |
Acrocephalus |
container_volume |
40 |
container_issue |
180-181 |
container_start_page |
5 |
op_container_end_page |
48 |
_version_ |
1766391714103164928 |