Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy).
During 1993-2010 we have monitored at Lake Trasimeno the population of colonial nesting herons, with the exception of Ardea purpurea. Two distinct heronries have been found, placed 9 km away from each other and composed of the following species: Nycticorax nycticorax, Ardeola ralloides, Bubulcus ibi...
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PAGEPress Publications
2012-05-01
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Series: | Rivista Italiana di Ornitologia - Research in Ornithology |
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Online Access: | https://sisn.pagepress.org/index.php/rio/article/view/96 |
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author | Francesco Velatta Mario Muzzatti Monica Montefameglio Maria Maddalena Chiappini |
author_facet | Francesco Velatta Mario Muzzatti Monica Montefameglio Maria Maddalena Chiappini |
author_sort | Francesco Velatta |
collection | DOAJ |
description | During 1993-2010 we have monitored at Lake Trasimeno the population of colonial nesting herons, with the exception of Ardea purpurea. Two distinct heronries have been found, placed 9 km away from each other and composed of the following species: Nycticorax nycticorax, Ardeola ralloides, Bubulcus ibis, Egretta garzetta, Ardea cinerea, Casmerodius albus (the last perhaps not breeding). We have usually carried out a total census of the nests and assessed the proportions of the different heron species on a sample of visible adults. Nycticorax nycticorax and Ardeola ralloides have decreased, whilst Ardea cinerea and Bubulcus ibis have shown positive trends. The cumulated breeding population has shown a strong decrease, followed by a recovery. The population size of the last year (298 pairs) is of great importance in Central Italy, accounting for 10% of the heron population of the whole region. |
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language | English |
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series | Rivista Italiana di Ornitologia - Research in Ornithology |
spelling | doaj.art-95c59abefc4f431ea25a83af14f5afb62022-12-22T01:48:48ZengPAGEPress PublicationsRivista Italiana di Ornitologia - Research in Ornithology0035-68752385-08332012-05-0180210.4081/rio.2010.96Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy).Francesco Velatta0Mario Muzzatti1Monica Montefameglio2Maria Maddalena Chiappini3Provincia di Perugia, Area Ambiente e Territorio, PerugiaOasi Naturalistica “La Valle”, Via dell’Emissario, San Savino, Magione, PerugiaProvincia di Perugia, Area Ambiente e Territorio, PerugiaOasi Naturalistica “La Valle”, Via dell’Emissario, San Savino, Magione, PerugiaDuring 1993-2010 we have monitored at Lake Trasimeno the population of colonial nesting herons, with the exception of Ardea purpurea. Two distinct heronries have been found, placed 9 km away from each other and composed of the following species: Nycticorax nycticorax, Ardeola ralloides, Bubulcus ibis, Egretta garzetta, Ardea cinerea, Casmerodius albus (the last perhaps not breeding). We have usually carried out a total census of the nests and assessed the proportions of the different heron species on a sample of visible adults. Nycticorax nycticorax and Ardeola ralloides have decreased, whilst Ardea cinerea and Bubulcus ibis have shown positive trends. The cumulated breeding population has shown a strong decrease, followed by a recovery. The population size of the last year (298 pairs) is of great importance in Central Italy, accounting for 10% of the heron population of the whole region.https://sisn.pagepress.org/index.php/rio/article/view/96ArdeidaeheronriesLake TrasimenoCentral Italy. |
spellingShingle | Francesco Velatta Mario Muzzatti Monica Montefameglio Maria Maddalena Chiappini Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy). Rivista Italiana di Ornitologia - Research in Ornithology Ardeidae heronries Lake Trasimeno Central Italy. |
title | Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy). |
title_full | Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy). |
title_fullStr | Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy). |
title_full_unstemmed | Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy). |
title_short | Monitoring of some species of colonial nesting Ardeidae at Lake Trasimeno (Central Italy). |
title_sort | monitoring of some species of colonial nesting ardeidae at lake trasimeno central italy |
topic | Ardeidae heronries Lake Trasimeno Central Italy. |
url | https://sisn.pagepress.org/index.php/rio/article/view/96 |
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