Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans
Abstract We monitored population size from 1996 to 2003 and studied behavioural interactions (in 2001) between the native Black-headed Gull Chroicocephalus ridibundus and an expansive, opportunistic predator, the Caspian Gull Larus cachinnans , at water reservoirs in Poland. The expansive species ca...
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Springer Science and Business Media LLC
2012
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Online Access: | http://dx.doi.org/10.1007/s10336-012-0824-4 https://link.springer.com/content/pdf/10.1007/s10336-012-0824-4.pdf https://link.springer.com/article/10.1007/s10336-012-0824-4/fulltext.html http://www.springerlink.com/index/pdf/10.1007/s10336-012-0824-4 |
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crspringernat:10.1007/s10336-012-0824-4 2023-05-15T18:49:32+02:00 Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans Skórka, Piotr Wójcik, Joanna D. Martyka, Rafał Lenda, Magdalena 2012 http://dx.doi.org/10.1007/s10336-012-0824-4 https://link.springer.com/content/pdf/10.1007/s10336-012-0824-4.pdf https://link.springer.com/article/10.1007/s10336-012-0824-4/fulltext.html http://www.springerlink.com/index/pdf/10.1007/s10336-012-0824-4 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/2.0 https://creativecommons.org/licenses/by/2.0 CC-BY Journal of Ornithology volume 153, issue 3, page 947-961 ISSN 2193-7192 2193-7206 journal-article 2012 crspringernat https://doi.org/10.1007/s10336-012-0824-4 2022-01-04T16:47:29Z Abstract We monitored population size from 1996 to 2003 and studied behavioural interactions (in 2001) between the native Black-headed Gull Chroicocephalus ridibundus and an expansive, opportunistic predator, the Caspian Gull Larus cachinnans , at water reservoirs in Poland. The expansive species caused a population decline in the native species and affected its choice of nest sites. The Black-headed Gulls perceived the risk of predation on the part of the larger Caspian Gulls. When both species occurred in close proximity, the native gull breeding pairs built nests where the vegetation was higher and its cover greater than at the sites chosen by pairs breeding far away from the expansive species. The native gulls in proximity to the expansive species spent more time guarding their nests. However, this was not compensatory, as egg losses were higher and breeding success much lower in pairs breeding near the Caspian Gulls than in those breeding far from the latter. Such a low breeding performance in the Black-headed Gulls was probably caused either by predation on the part of Caspian Gulls or by aggressive interactions among Black-headed Gulls. In fact, the rate of intraspecific aggression in native gulls was higher in pairs breeding in proximity to the expansive species than in those breeding far away from it. These intraspecific fights, caused by the presence of the expansive species were, at least partially, responsible for egg and chick losses. We did not find the presence of native gulls to have any effect on the behaviour and breeding performance of the expansive gull. These results indicate that the expansive predatory Caspian Gull negatively affects local population size and alters the behaviour of the native Black-headed Gull, and may, both directly and indirectly, affect its reproductive performance. Article in Journal/Newspaper Black-headed Gull Chroicocephalus ridibundus Springer Nature (via Crossref) Journal of Ornithology 153 3 947 961 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
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English |
description |
Abstract We monitored population size from 1996 to 2003 and studied behavioural interactions (in 2001) between the native Black-headed Gull Chroicocephalus ridibundus and an expansive, opportunistic predator, the Caspian Gull Larus cachinnans , at water reservoirs in Poland. The expansive species caused a population decline in the native species and affected its choice of nest sites. The Black-headed Gulls perceived the risk of predation on the part of the larger Caspian Gulls. When both species occurred in close proximity, the native gull breeding pairs built nests where the vegetation was higher and its cover greater than at the sites chosen by pairs breeding far away from the expansive species. The native gulls in proximity to the expansive species spent more time guarding their nests. However, this was not compensatory, as egg losses were higher and breeding success much lower in pairs breeding near the Caspian Gulls than in those breeding far from the latter. Such a low breeding performance in the Black-headed Gulls was probably caused either by predation on the part of Caspian Gulls or by aggressive interactions among Black-headed Gulls. In fact, the rate of intraspecific aggression in native gulls was higher in pairs breeding in proximity to the expansive species than in those breeding far away from it. These intraspecific fights, caused by the presence of the expansive species were, at least partially, responsible for egg and chick losses. We did not find the presence of native gulls to have any effect on the behaviour and breeding performance of the expansive gull. These results indicate that the expansive predatory Caspian Gull negatively affects local population size and alters the behaviour of the native Black-headed Gull, and may, both directly and indirectly, affect its reproductive performance. |
format |
Article in Journal/Newspaper |
author |
Skórka, Piotr Wójcik, Joanna D. Martyka, Rafał Lenda, Magdalena |
spellingShingle |
Skórka, Piotr Wójcik, Joanna D. Martyka, Rafał Lenda, Magdalena Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans |
author_facet |
Skórka, Piotr Wójcik, Joanna D. Martyka, Rafał Lenda, Magdalena |
author_sort |
Skórka, Piotr |
title |
Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans |
title_short |
Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans |
title_full |
Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans |
title_fullStr |
Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans |
title_full_unstemmed |
Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans |
title_sort |
numerical and behavioural response of black-headed gull chroicocephalus ridibundus on population growth of the expansive caspian gull larus cachinnans |
publisher |
Springer Science and Business Media LLC |
publishDate |
2012 |
url |
http://dx.doi.org/10.1007/s10336-012-0824-4 https://link.springer.com/content/pdf/10.1007/s10336-012-0824-4.pdf https://link.springer.com/article/10.1007/s10336-012-0824-4/fulltext.html http://www.springerlink.com/index/pdf/10.1007/s10336-012-0824-4 |
genre |
Black-headed Gull Chroicocephalus ridibundus |
genre_facet |
Black-headed Gull Chroicocephalus ridibundus |
op_source |
Journal of Ornithology volume 153, issue 3, page 947-961 ISSN 2193-7192 2193-7206 |
op_rights |
https://creativecommons.org/licenses/by/2.0 https://creativecommons.org/licenses/by/2.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s10336-012-0824-4 |
container_title |
Journal of Ornithology |
container_volume |
153 |
container_issue |
3 |
container_start_page |
947 |
op_container_end_page |
961 |
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1766243142226411520 |